bata j ‘ Hid} = = CTA 1} ' Heh i ‘i IRTE FLORIDA STATE GEOLOGICAL-SURVEY HERMAN GUNTER, STATE GEOLOGIST TERT eN TH ANNUAL REPORT PUBLISHED FOR THE STATE GEOLOGICAL SURVEY TALLAHASSEE, 1921 DELAND, FLA ve ‘THE E, O. PAINTER PRINTING 0 M (1921 LETTER OF TRANSMITTAL. To His Excellency, Hon. Sidney J. Catts, Governor of Florida: Sir:—In accordance with the law establishing the State Geo- logical Survey I submit. herewith, my annual report, being the Thirteenth in the series of annual reports thus far published by this Department. The report contains a detailed financial state- ment showing the expenditures up to June 30, 1920, together with a result of those investigations undertaken during the past year. _ Appreciation of the interest you have shown in the work of the State Geological Survey and the assistance you have rendered is herewith expressed. ; Very respectfully, HERMAN GUNTER, State Geologist. November, 1920. CONTENTS Administrative report: <2=.52282 5 -S2= EN ase oe ee eee 5 Introduction: :2 2: SaS te ek oe ae ee ak ee 5 Recommendations 2025-6 sae ee See ee II Oil Sprospectirig? 252 2.22 Me ee as ee 14 Financial: statement’ 22522224 Ae ee 20 Statistics “of mineral production ducing, 1916 2--==--—) = ee 25 Foraminifera from the deep wells of Florida, by Joseph A. Cushman (with fig. (t and: plates =3) (wes -e et ee es ed Ee eee ae Geography of Central Florida, by Roland M. Harper (with figs. 2-43) -- 71 099 ADMINISTRATIVE REPORT. HERMAN GUNTER, STATE GEOLOGIST. INTRODUCTION. The act establishing the Florida State Geological Survey was passed by the Legislature of 1907, being approved on June 3rd of that year. Among other provisions of the law is one requiring the State Geologist to make annually to the Governor a report of the progress made by the Survey. Since its establishment the following reports have been issued, the subjects treated being in- dicated by the titles of the separate papers listed under each an- nual report which make up the whole volume. Those annual reports followed by an asterisk (*) are no longer available for distribution as a whole volume, owing to exhaustion of supply. It is frequently the case, however, that although the report as a whole is not available some of the separate papers making up the volume may be obtained. When this is the case such separates making up the respective annual reports as are still available are indicated by the dagger sign (7). PUBLICATIONS OF THE FLORIDA GEOLOGICAL SURVEY First Annual Report, 1908, 114 pp., 6 pls.* This report contains: (1) a sketch of the geology of Florida; (2) a chap- ter on mineral industries, including phosphate, kaolin or ball clay, brick-mak- ing clays, fuller’s earth, peat, lime, cement and road-making materials; (3) a bibliography of publications on Florida geology, with a review of the more important papers published previous to the organization of the present Geo- logical Survey. Second Annual Report, 1909, 299, pp., 19 pls., 5 text figures, one map.* This report contains : (1) a preliminary report on the geology of Flor- ida, with special reference to stratigraphy, including a topographic and geo- logic map of Florida, prepared in co-operation with the United States Geo- 5 6 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT logical Survey; (2) mineral industries; (3) the fuller’s earth deposits of Gadsden county, with notes on similar deposits found elsewhere in the State Third Annual Report, 1910, 397 pp., 28 pls., 30 text figures.” This report contains: (1) a preliminary paper on the Florida phosphate deposits; (2) some Florida lakes and lake basins; (3) the artesian water sup- ply of eastern and southern Florida; (4) a preliminary report on the Flor- ida peat deposits. Fourth Annual Report, 191'2, 175 pp., 16 pls., 15 text figures, one map. This report contains: (1) the soils and other surface residual materials of Florida, their origin. character and the formations from which derivedy; (2) the water supply of west-central and west Floriday; (3) the production of phosphate rock in Florida during 1910 and 1911. Fifth Annual Report, 1913, 306 pp., 14 pls., 17 text figures, two maps.* This report contains: (1) origin of the hard rock phosphates of Flor- idat; (2) list of elevations in Florida; (3) artesian water supply of eastern and southern Floridat; (4) production of phosphate in Florida during 1912; (5) statistics on public roads in Florida. Sixth Annual Report, 1914, 451 pp., 90 figures, one map.* This report contains: (1) mineral industries and resources of Floriday; (2) some Florida lakes and lake basins; (3) relation between the Dunnellon and Alachua formations; (4) geography and vegetation of northern Flor- idaf. Seventh Annual Report, 1915, 342 pp., 80 figures, four maps.* This report contains: (1) pebble phosphates of Floridat; (2) natural resources of an area in Central Floridat; (3) soil survey of Bradford countyt; (4) soil survey of Pinellas countyf. Eighth Annual Report, 1916, 168 pp., 31 pls., 14 text figures.* This report contains: (1) mineral industries; (2) vertebrate fossils, in- cluding fossil human remainsf. ADMINISTRATIVE REPORT 7 Ninth Annual Report, 1917, 151 pp., 8 pls., 13 figures, two maps. This report contains: (1) mineral industries; (2) additional studies in the Pleistocene at Vero, Floriday; (3) geology between the Ocklocknee and Aucilla rivers in Floridaf. Tenth and Eleventh Annual Reports, 1918, 130 pp., 4 pls., 9 figures, two maps.* This report contains: (1) geology between the Apalachicola and Ock- locknee rivers; (2) the skull of a Pleistocene tapir with description of a new species and a note on the associated fauna and flora; (3) geology between the Choctawhatchee and Apalachicola rivers; (4) mineral statistics; (5) mol- luscan fauna from the marls near DeLand. Twelfth Annual Report, 1919, 153 pp., four maps. This réport contains: (1) literature relating to human remains and arti- facts at Vero, Floridat; (2) fossil beetles from Verot; (3) elevations in Floridat; (4) geologic section across the Everglades of Floridat; (5) the age of the underlying rocks of Florida as shown by the foraminifera of well borings}; (6) review of the geology of Florida with special reference to structural conditions}. Thirteenth Annual Report (this volume) 1921. - Bulletin No. 1. The Underground Water Supply of Central Florida, 1908, 103 pp., 6 pls., 6 text figures.* This bulletin contains: (1) underground water. general discussion; (2) the underground water of central Florida, deep and shallow wells, spring and artesian prospects; (3) effects of underground solution, cavities, sinkholes, disappearing streams and solution basins; (4) drainage of lakes, ponds and swamp lands and disposal of sewage by bored wells; (5) water analyses and tables giving general water resources, public water supplies, spring and well records. Bulletin No. 2. Roads and Road Materials of Florida, 1911, 31 pp., 4 pls.* | This bulletin contains: (1) an account of the road building materials of Florida; (2) a statistical table showing the amount of improved roads built by the counties of the State to the close of I9gI0. 8 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT In addition to the regular reports of the Survey as listed above press bulletins have been issued as follows: No. 1. The-Extinct Land '!Animals of Florida, February 6, 1913. No. 2. Production of Phosphate Rock in Florida during 1912, March 12, 1913. No. 3. Summary of Papers Presented by the State Geologist at the At- lanta Meeting of the American Association for the Advancement of Science, December 31, I913. No.4. The Utility of Well Records, January 15, 1914. No. 5. Production of Phosphate Rock in Florida during 1913, May 20, IQI4. No. 6. The Value to Science of the Fossil Animal Remains Found Em- bedded in the Earth, January, 1915. No. 7. Report on Clay Tests for Paving Brick,s April, 1915: No. 8. Phosphate Production for 1917, May 2, 1918. No. 9. Survey of Mineral Resources, May 10, 1918. No. 10. Phosphate Industry of Florida during 1918, June 5, Ig19. . No. 11. Statistics on Mineral Production in Florida during 1918, Octo- ber 6, 19109. DISTRIBUTION OF REPORTS The reports of the Florida Geological Survey are sent with- out cost to the citizens of the State and may be obtained by ad- dressing a request to the State Geologist, Tallahassee, Florida. Postage should accompany requests from those living outside of Florida or if preferred reports can be sent by express collect. ADMINISTRATIVE REPORT 9g RESIGNATION OF E. H. SEILLARDS AS STATE GEOLOGIST. After serving the State of Florida for almost fifteen years, three years as Professor of Geology and Zoology at the Univer- sity of Florida and practically twelve years as State Geologist, Dr. E. H. Sellards tendered his resignation which became effective April 18, 1919. Dr. Sellards did not leave the services of the State without regret, for the work was most attractive, the field of labor and investigation rich and the associations formed in the prosecution of the great work that he had accomplished most pleas- ant. It was, however, the mounting cost of the daily necessaries and comforts of life with the decreasing purchasing power of the dollar that was the compelling force and deciding factor in the acceptance of a more attractive offer with the Bureau of Economic Geology and Technology of the State of Texas. No one was more familiar with the geology of the State of Florida and its economic resources than was Dr. Sellards and in his leaving the State has lost the services of a most thorough, painstaking, conscientious and scientific investigator. PERSONNEL OF THE SURVEY. Upon the resignation of Dr. E. H. Sellards as State Geologist, Mr. Herman Gunter, who has been with the Survey since August, 1907, was appointed as his successor. On July 1, 1919, Mrs. L. B. Robertson entered upon the duties of Secretary of the Depart- ment and served in this capacity until August I, 1920. Dr. Joseph A. Cushman of the Boston Society of Natural History, a recog- nized authority on foraminifera, minute fossils of great importance in identifying geologic formations, has prepared a detailed repdrt on the species of this group as represented in samples of drillings from several deep wells in the State. Dr. R. M. Harper has served as Assistant on the Survey in the capacity of botanist and geog- rapher since April 1, 1920. A paper on the Geography of Central Florida by Dr. Harper accompanies this report, which is in contin- uation of a study and report on this subject covering northern Flor- ida, contained in the Sixth Annual Report, published in 1914. . IO FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT CHANGE OF LOCATION OF THE GEOLOGICAL DEPARTMENT. Through the courtesy of the State Chemist the Geological De- partment occupied two rooms in the Chemical Building from early in 1908, or shortly after its organization, until March 1, 1920. One of these served as office and library while the other was used for the exhibition of geological material and for other purposes. The legislature of 1919 provided for the inspection and anal- ysis of gasoline and kerosene, carrying also the provision for appointment of an additional Assistant State Chemist to take care of the analytical work. Although the rooms occupied by the Geo- logical Survey were at the expense of the State and even though they had been needed by the Chemical Division for some time, it was not until the law mentioned became effective that it was neces- sary for the Geological Department to find quarters elsewhere. There being no available space in the Capitol building or in one owned or controlled by the State there was no other alterna- tive than to get office and museum space in a building privately owned. In this the Geological Survey was fortunate for the Per- kins Building on Monroe Street was at that time under construc- tion, and quarters were arranged to suit the convenience of the Department, both as to office, library and museum space. In its new location the Survey has one room containing 750 square feet which is now used for the exhibition of geological ma- terial and for the main working library. The other space, equal in area, is divided into four rooms, the offices for the State Geolo- gist, Assistant and Secretary, while the fourth serves the purpose of mailing room and for storage. MUSEUM. In its new location the room used for the exhibition of geo- logical material and for the main library occupies approximately 750 square feet. Six cases have been built which serve both the purpose of exhibition and storage, but much other material now in storage could be placed on exhibition if more space and ad- ditional cases were provided. The, present cases are filled, both as to exhibition and storage space, and specimens collected in the future will have to remain packed in boxes until such time as ad- ADMINISTRATIVE REPORT 1 ip ditional space becomes available. The collection of fossils and minerals will be added to as rapidly as they can be properly cared for. LIBRARY. The Survey library now contains several thousand volumes, and is a fairly complete reference library for our purposes. Many volumes, particularly those of foreign Geological Surveys, are stored elsewhere temporarily owing to an insufficient number of bookcases to accommodate them in the library. RECOMMENDATIONS. CLAY TESTING LABORATORY. The clays of Florida should be investigated and reported upon. As is shown by the number of requests, demand for information on the properties of the clays of the State is increasing. The phys- ical property of a clay can only be determined by proper clay testing machinery, with which the Geological Survey is not equip- ped. A clay testing laboratory should be installed so that a thorough, systematic investigation of the clays of the State could be made. At present space in which to install clay testing machinery is not available and the State Survey cannot make tests of clays until adequate provisions are made. MEASUREMENTS OF STREAMS AND SPRINGS. The water powers of the State should receive attention. A systematic study of these requires a knowledge of the drainage systems, which in instances are quite complicated. Gauges should be installed on the more promising rivers and streams and records should cover a sufficient period of time to give accurate data for seasonal variations of flow. Likewise, the springs of the State should be gauged. In Florida are found the largest springs in the world, and estimates of flow from these should be available. Estimates of the volume of flow from many of these, particularly the larger ones, have been made at different times but it would be of considerable inter- I2 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT est and desirable to have data on the fluctuation of flow which could be gotten only by records covering a stated period. Co-operation in the matter of the gauging of streams could be arranged with the Water Resources Branch of the United States Geological Survey and it is urged that provision be made for enter- ing into such co-operation. CO-OPERATION WITH OTHER ORGANIZATIONS. The Florida Geological Survey has co-operated with the United States Geological Survey, as in former years, in the collection of statistics on the mineral production in Florida. This co-operation has been found highly desirable and advantageous since it elimi- nates the possibilities of discrepancies in statements which might occur when such statistics are collected separately by each Survey. TOPOGRAPHIC MAPPING. In this day of rapid development in the State coupled with undertakings of vast magnitude such as the enormous drainage projects, the plans for and the construction of permanent systems of highways, renewed activity in railroad extensions, etc., nothing could better serve as an essential aid in this development than de- tailed topographic maps. These maps are as accurate as the scale used (approximately a mile to the inch) will allow, showing every natural surface feature, such as rivers and creeks, springs, lakes, swamps and marshes, hills and valleys, sink-holes and rock out- crops in addition to artificial features as cities and towns, schools, churches and other buildings, railroads, highways, as well as minor roads, and bridges. In fact, such maps as these prepared by the United States Geological Survey are indispensable to the most in- telligent development of many of the State’s resources and indus- tries. With their aid the construction engineer can lay out a right- of-way for either highway or railroad without the expense of the preliminary survey and the drainage engineer can lay out a system of canals and ditches in the office almost to better advantage than in the field. To the general public, and particularly to those who travel, the maps are of great convenience and benefit, for 4 mo- ment’s glance reveals the exact physiography and general nature of the country mapped. ADMINISTRATIVE REPORT We As a base map on which to show the distribution of differ- ent soil types topographic maps are of very great assistance. Not only do they serve as an exact base map for the area to be soil surveyed, thus reducing the cost of the soil map itself, but they facilitate the study of the soils which, as is known, bear close re- lations with drainage and moisture conditions. They are practically indespensable in the preparation of detailed, final geologic maps and reports. The accumulation of oil or gas in commercial quantity is greatly dependent upon favorable geologic structure of formations. With the constant increase of interest in the problem of oil and gas being found in Florida, topographic maps could facilitate ac- curate work on geologic structure. In a state like Florida, with comparative little relief and consequently but few continuous ex- posures of the different geological formations, evidence of struc- ture must be gotten from many single disconnected exposures. The working out of structure so as to determine anticlines, synclines and folds in the strata is no easy problem at best, but these maps, showing as they do elevations by means of contours at 10-foot intervals, would make the problem easier of solution. CO-OPERATION WITH UNITED STATES GEOLOGICAL SURVEY IN TOP- OGRAPHIC MAPPING. It is with an appreciation and realization of the value of such maps that the Florida Geological Survey is desirous of co-operat- ing with the United States Geological Survey in their preparation. As many as 24 quadrangles lying wholly or partly within the State and covering about 250 square miles each, have already been topo- graphically surveyed. According to an estimate by the United _ States Geological Survey the mapping so far completed covers seven per cent of the total area of the State. From the same source it is learned that only one other State in the entire United States falls below this percentage. All of the areas mapped, except seven lying in central peninsular Florida embracing a portion of the hard rock phosphate belt, and surveyed shortly after the discovery of phosphate, have been mapped in recent years. In fact, it was due primarily to military necessity for the information gained from such maps that the War Department co-operated with the United States I4 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT Geological Survey during the recent war and prepared the greater number of the maps embracing a portion of northeastern Florida. The usefulness of these maps calls for the continuation of work along these lines, with the State bearing its proportionate part of the cost. To do this increased funds must be made available. The willingness on the part of the United States Geo- logical Survey to aid in this work is shown by the offer to co- operate with the Florida Geological Survey on a dollar for dollar basis. In addition, the expense of printing and engraving is borne by the Federal Survey. It is recommended that at least $5000.00 be appropriated each year by the State for the prosecution of field work in order that the mapping may progress and be com- pleted within a reasonable number of years. OIL PROSPECTING. Interest in the probability of finding oil and gas in Florida is increasing and much money is being spent in drilling test wells at the present time. During the past several years a number of such wells have been drilled in the State, particularly in the pen- insular portion, the deepest in that section being one near Bush- nell, in Sumter County, which reached’ a depth of 3080 feet. The area in which prospecting is now most active is in the northern and western portion of the State. Wells are being drilled near Burns in Wakulla County about fifteen.miles south of Tal- lahassee, near Clarksville in northern Calhoun County, near Chip- ley in northern Washington County, and two in Walton County, near Mossy Head and Bruce. Other wells are to be commenced in the near future, locations having been decided upon, operations only awaiting the delivery and placing of the drilling rig and other necessary machinery. It is becoming more and more generally recognized that the accumulation of oil and gas is dependent upon the character and structure of the underlying geological formations. A detailed study of the geology of the region should be made before a loca- tion for a test well is decided upon. These studies should cover a large territory in order to make it possible to properly correlate the different formations and the structure within them. Some of the promoters of the wells that have been and are being drilled ADMINISTRATIVE REPORT 15 in Florida have appreciated this fact and have decided upon a location only after considering reports on the geology covering - their properties and surrounding country.. In order, however, that the reliability of such reports be unquestioned they should be pre- pared by one who is a geologist of recognized standing thereby not only demanding but meriting that confidence be placed upon the results of his investigations. _ The State Geological Survey in the regular course of its in- vestigations has accumulated considerable data relative to the struc- ture of formations in Florida. Much of this has been published in the various papers on geology as contained in the several an- nual reports but such data are constantly being added to. A study of the structure of formations in Florida is a rather tedious task owing to the comparative slight relief with correspondingly few continuous geologic exposures. In addition, erosion, especially by solution and subsidence, has been most active in our formations thus increasing the difficulty of working out structure in any particular formation or horizon, It is thus only through detailed work and cautious interpretations that the most. reliable results can be obtained. Of invaluable assistance in the furtherance of these studies would be topographic maps on which all surface exposures and other related data could be located and on which structure con- tours could be plotted. In addition accurate well records, based on samples of the drillings taken at frequent intervals, have con- tributed important data to our knowledge of the succession of formations in Florida. Efforts on the part of the Survey to se- cure well samples have had results and such sets of drillings as have been procured have been studied in detail, one paper being published in the Twelfth Annual Report and a second being in- cluded in the present volume. Through the courteous co-opera- tion of well contractors and promoters the Survey is at present receiving excellent sets of carefully taken well drillings and it is a privilege to acknowledge this co-operation which will add much to our present knowledge of the geology of the State. It is urged that those who contemplate drilling any wells, particularly those that may go to exceptional depth, save samples of the cuttings and submit them to the State Geologist, Tallahassee, Fla., who will study them and submit a descriptive log. Too much emphasis tip 6) FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT can not be placed on the importance of saving samples of the drill- ings from all the deep wells that are drilled for whatever purpose. These should be carefully collected at frequent intervals regard- less of whether there is a change in the formation or not and properly labeled as to the depth from which they were taken. Of interest in consideration of the subject of oil in Florida is a Press Bulletin of the United States Geological Survey which appeared during April 1920. This bulletin relates to Peninsular Florida, in fact that portion of the State lying from Suwannee County eastward. The title as first published is misleading in that it includes the entire State but from the subject matter it is readily seen that the area lying from Suwannee County westward is not treated. The bulletin referred to is herewith republished with the insertion of the word “Peninsular” in the title: DRILLING FOR OIL IN PENINSULAR ELORIDES ADVICE GIVEN BY GOVERNMENT GEOLOGIST. Wells have been drilled for oil in every State in the Union ex- cept the New England States and possibly four others—North Carolina, South Carolina, Nevada, and Idaho. Only sixteen states, however, can be called oil-producing. A number of deep wells have been drilled in Florida, the deepest being one near Bush- nell, in Sumter County, which was carried to a depth of 3,080 feet. This well and one near Waycross, in southern Georgia, which was drilled to a depth of 3,045 feet, are two of the deepest wells in the Atlantic Coastal Plain. GEOLOGISTS NOT HOPEFUL OF SUCCESS. Although the deep wells drilled in Florida have yielded no indications of oil the interest in the possibility of finding oil there has not been diminished by their failure but has actually increased with the increase in the prosperity of the State, so that much money has been spent in drilling test wells in areas where oil is not likely to be found. As additional wells will no doubt be drilled in Florida the results of geologic field work done by O. ADMINISTRATIVE REPORT W7, B. Hopkins, and other members of the United States Geological Survey, Department of the Interior, in co-operation with the Florida State Geological Survey, may have some value in future exploration. The geologists of the United States Geological Survey are not very hopeful that oil will be found anywhere in the Atlantic Coastal Plain, because the stratigraphy and the structure of the beds of rock in that area are in many ways different from those of the beds in the Gulf Coastal Plain, where oil has been found. GEOLOGIC FORMATIONS IN FLORIDA. The intelligent selection of a location for drilling-a test well involves the consideration of (1) the character of the formations that underlie within a reasonable drilling depth the area to be tested and (2) the structute of the beds, which controls the ac- cumulation of oil. The beds in Florida lie nearly flat and are poorly exposed at the surface, so that the information thus far obtained in regard to both these features is meager. The forma- tions that underlie the center of the peninsula of Florida at a relatively shallow depth do not, so far as known, appear anywhere at the surface in the State, but beds of the same age outcrop 250 miles to the north, in central Georgia. As these formations vary widely in character from place to place the only knowledge of their character in this part of Florida must be obtained from well borings. The Ocala limestone, of Eocene age, found near Ocala, in central Florida, is the oldest formation exposed in the State. Oul will probably not be found in it or in any of the other younger formations that outcrop in Florida, for none of them contain much bituminous matter. They consist largely of limestone. The formations below the Ocala, which have been drilled into at a number of places, consist chiefly of white limestone, of Lower Cretaceous age. At Bushnell more than 2,800 feet of limestone, interbedded with thin beds of fine sand, of Lower Cretaceous age, has been penetrated by the drill. These limestones are probably underlain in this part of Florida at no great depth by old crystal- line rocks, such as form the Piedmont ‘area of northern Georgia. 18 FLORIDA GEOLOGICAL SURVEY—-I13TH ANNUAL REPORT If any showings of oil have been found in the wells so far drilled they were small, and the great thickness of limestone under- lying the surface formations in Florida does not encourage an expectation that oil will be found there in commercial quantities, for oil is usually associated with thick deposits of shale, in which it presumably originated. The evidence available at the present moment does not seem to justify sanguine hopes of developing an important oil field in this State. STRUCTURE OF THE ROCK BEDS. The dominant structural feature of eastern Florida is an an- ticlinal fold, or arch, which.trends south-southeastward and forms the axis of the peninsula. The axis of this arch passes near Live Oak, 10 to 20 miles west of Gainesville, and an equal distance west of Ocala, and is the southern continuation of the broad an- ticlinal area of south-central Georgia. Along this anticline there are two high areas. The highest part of one, called the Ocala up- lift, appears to be in eastern Levy County; that of the other is near Live Oak. The Ocala uplift is the larger and the higher. On this uplift the Ocala limestone is found 120 feet above sea level. From that elevation it dips toward the east to a depth of 200 feet below sea level at St. Augustine and 500 feet below sea level at Jacksonville. The Ocala uplift is separated from the uplift near Live Oak by a low area, or saddle, which runs parallel to the axis of the anticline to a point near Santa Fe River, in southern Columbia County. From that point the beds appear to rise gently to form a dome- shaped fold near Live Oak. The Ocala limestone is found at Su- wannee, FEllaville, Dowling Park, and Luraville, on Suwannee River, at elevations ranging from 35 to 45 feet above sea level, whereas the Chattahoochee limestone, which overlies it, is 120 feet above sea level at Live Oak. As the Chattahoochee here has an estimated thickness of 30 to 40 feet, the Ocala is probably 4o feet higher at Live Oak than at any of the exposures on the Suwan- nee or at Bass, a fact which suggests the inference that a dome-like uplift centers at Live Oak. This inference is strengthened by the fact that the top of the Chattahoochee limestone stands at an ele- ADMINISTRATIVE REPORT Ig vation of only 75 to 80 feet above sea level along the Georgia- Florida line, or about 40 feet lower than it is near Live Oak. The existence of this dome appears to be indicated also by the swing of Suwannee River around Live Oak; instead of continuing its southerly course, it bends to the west-northwest near White Springs and circles around Live Oak before continuing its course toward the Gulf. The existence of the Okefenokee Swamp, which 1s drained chiefly by Suwannee River, may be due in part to the de- flection of the river by the Live Oak uplift. From an elevation of about 80 feet above sea level at Live Oak, the Ocala limestone dips eastward to about 500 feet below sea level at Jacksonville and about 300 feet or more below sea level at Waycross. BEST PLACE TO DRILL. As the Live Oak uplift is smaller and somewhat better de- fined than the Ocala uplift it may offer more favorable con- ditions for the accumulation of oil or gas, if any exist in this re- gion. The highest part of this uplift appears to be near Live Oak, and a well sunk near that place would therefore be structurally most favorably located. A well drilled here to a depth of more than 3,000 feet will probably penetrate limestone, thin beds of fine sand, and perhaps some shale. “Wildeatting,”’ as drilling for oil in an area not known to be oil bearing is called, is the wildest kind of speculation, and it should be indulged in only by those who are able to lose money. The United States Geological Survey does not recommend wildcatting in Florida; it merely suggests that the structure at Live Oak may be as favorable as at any other place in the State for the accumu- lation of oil, and that any company which desires to drill a test well in Florida should consider this locality. In view of the increasing interest in the possibilities of find- ing oil in Florida and the insistent demand for information on this subject provisions have been made whereby it is planned to have a report ready for printing in our next annual report. 20 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT EXPENDITURES OF THE GEOLOGICAL SURVEY FOR THE PERIOD FROM JANUARY 1, I9Q19Q TO JUNE 30, 1920. There is given below a detailed list of the warrants issued showing the expenditures of the Survey from January 1, 1919 to June 30, 1920. A list of warrants previously issued has been published in the various Annual Reports. The total amount ap- propriated for the maintenance of the State Geological Survey is, as it has been from the beginning, $7,500 per annum; which was sufficient at first, but is wholly inadequate for maintaining an ef- ficient department now since the dollar has shrunk to about one- half its former value. All accounts are approved by the Governor and are paid only by warrant drawn upon the State Treasurer by the Comptroller, no part of the fund being handled direct by the State Geologist. The original bills and itemized expense ac- counts are on file in the office of the Comptroller, duplicate copies being retained in the office of the State Geologist. The paid warrants are on file in the office of the State Treasurer. / LIST OF WARRANTS ISSUED FROM JANUARY 1, 1919 TO JUNE 30, 10920. JANUARY, IQIQ. Herman Gunter, assistant, salary for January, 1919 ~----_-----__- $150.00 Herman Gunter, assistant, expenses for January, I919 ---------_-- 18.05 Bredse Collins we wfanitOn eServices ae ee ee 10.00 FEBRUARY, IQIQ. Herman Gunter, assistant, salary for February, 1919 ~-----_-__--_- 150.00 Bred)Collinis, sjanttor. setvices* <=" - 22-82 ee ee ee 10.00 MARCH, I9QIQ. Herman Gunter, assistant, salary tor March,.19190)--= 4 === Se 150.00 Bredi Collins ajanitones ctv Cesige see eee ee 10.00 Economic Geology Publishing. Co: subscription == _--=_--2_222223 3.50 APRIL, IQIQ. E. HH. Sellards; State Geolovist, April, 1-18, ‘salary 2222) = ee 123.63 Eletmanin GunteriassistantemSalataysme AN pile — oe ee 90.00 Herman Gunter, assistant, expenses, ‘April, 1919 ~---------------_- 4.85 Daisy. (Gwaltney, stenogtaphic (services) {225 = eee 6.00 ADMINISTRATIVE REPORT 21 BredeGollinse janitor asetvices.4--2.-22- eee 10.00 H. F. Wickham, services in identifying’ fossils --..__----._________- 25.00 Wiiwleveineravine ana eiectrotype Co. —..-----_----..-.2---+.-. 18.17 Fines Terni. ESMIDICGR eae a aa ae ce 4.26 esrras ys Oavic. postmaster. postage, —s.-% 22-2252 .--.---.. 23.95 Pee dinter ee tintin ice.» Printing 224 7 371.00 Wiectanm mUthOn: DeleetapintCO.. 25222. .002 52 aan ane 1.21 MAY, IQIQ. Daicw waiter, Stehograpiic. Services (22 s02 0. 24.00 Eream@oltis, wanton: Seavices 25-2225. sens oe ek 10.00 ee Oe iter. brutingy Cr aao2- 28 ee ho ke 21.25 Wee wenckcom treieht sadds.drayage. © § 2622. 2 fs a 3.80 aromas Win ViswanOSEMaShetn ae se a 33.84 Precier wi iavasr nostinasteiy 2 Seen eS en 5.70 Winiversiniror |Chicazo . Press... 52.28" 2222 2222 2 3.60 Sees Opler s sorint eis ee ee 31.50 JUNE, I'gI9. Herman Gunter, State Geologist, April I9 to June 30 ~--_-_-__--__ 501.37 Herman Gunter, State Geologist, expenses April to June —-__--_- 34.65 Daisy, Gwaltney.. stenographic: services _-.-___-.- 2 2 = 36.00 rere Olulisae felnliton (SeGyiCes. lee oe te ek 10.00 POM erawiter erinting Gos, printing: 212.70. =o a 400.60 Wie CoauDixone trom andednavage: 28 eo 13.84 Waecer-ktiodes wtidw: “@o:foftice “supplies ~2-_ 2-2-2 6.56 Pehla ian or heer supplies 2 = ao ek 11.95 Hee Ge Gnesley air ero nice Supplies: = 202.2 2 3775 ie aaeApplevarde stationery, printing, éfc. {222222202 04.--.0. 2. 30.50 enteceia Daviseestamped venyelopes —2--2-—<2-2 222) a 67.24 Pimericanm kalway er xphess ps2 Pe oe ee eG 2.52 } FULY,. TOTO. Mrs. L. B. Robertson, stenographic services ~-.------------------ 100.00 Brede Waiansnmiciiieie Senyices 322. te Ve ek 2 ee 10.00 Ei eee wee Lew... COL oiice sipplies: a5 iJ oee 8 et 3.01 Pome se Litiemoiicer stppiies: = —--s=%. 5-0 Se et ey Pee 4.50 AUGUST, IQIQ. Herman Gunter, State Geologist, expenses July and August______ 36.40 Mrs.-L.. B. Robertson, stenographic services —+-.---..-.-£_--L._2__ 100.00 Sr SEIRICES: pete ks cae) 2) i 9 ES we eS 19.50 tigen: Colitis. janitor, Servicesy ao. 8 el ee a ed 10.00 Pinewicain Peat, SOvictySupscripion~ o-oo ee 3.00 22 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT Hog: We BaD rewaGonmOticersuppliccue sss = sues LUNES pet a 1.08 ID aly alopnyiohoeys ned ous sha, Givoyetsdoveyno 47.95 SEPTEMBER, I9Q1Q. Herman Gunter, State Geologist, salary July 1 to Sept 30 -______- 625.00 Herman Gunter? State Geologist; expenses =.=. eee ee 34.06 Missy Cab aRobertson ss stenograpliic ssenviCes) 22a an 100.00 SammnCobhmesenvices y+ - 22s sa ous aa ee ee ce eae 2.25 Racal Coiling, jevoihwone snares te ek 10.00 Weel Marshall- work. in; storeroom <*222) 55 eneens ass eee ee 60.30 Aan ericanem Railways wx ESS see eee eae een cy ee 1.07 Goala Davis; postage, 222 52 Fe ease ee oe oe ek ene Lee 26.00 OCTOBER, IQIQ. Herman Gunter, State Geologist, expetises October —~-L 2-22. B22 Msvols BasRobertsons stenogtaphic servicest sae 100.00 red, Collins, anitor ssenvices\: a2 2 a. oe ee ee eee 10.00 John Waley ‘&: sSons; publications: (22=. = s== ef es Se eee 5.00 Eee Wie Ba new GomaSup p ile sien 25.65 Americans Ratlwary, wp ress ya ee eee ee 89 1... tAppleyard.1-000' press bulletins e225 =. see a ee 20.00 NOVEMBER, IQIQ. Herman Gunter, State Geologist, expenses November ____---_____ 29.00 Mrs..l., B. Robertson," stenographic services 25-2222 -e oe eee 100.00 Fred: (Collins) janitor services, Ae eee ee. ea eee 10.00 Miss E. W. Marshall, copy tabulations mineral resources ___--____ 8.13 G. D: Harris; Bull) 31 of ‘Americans Palaeontology. 2-2 es ae 5.70 Joseph. Al ‘Cushman, special! senvicess: es ee ee 500.00 Dik. Cox’ Furniture: Co: bookcases? Ue 5s. Stes ae ee 60.75 DECEMBER, I'QIQ. Herman Gunter State Geologist, salary, Oct.49 to Dec: 30". =2. ae 625.00 Herman Gunter, State Geologist, expenses December _____________ 32.20 Mrs. LB. yRobertsonstenogiaphictservices, oa". eel 100.00 red’ Collins, Nanitorsenvicesqes = 1245-4 soot A as > ee 10.00. American Journal: ot Science, subscription 22-2=5-—- eee 6.00 Bi. Ry iKauinian! Supplies!) shee ae sy aad. OSs 1.20 JANUARY, 1920. Herman Gunter, State Geologist, expenses January ~--------_--__ 32.32 Mrs:. L..B. Robertson; stenogtaphic.services:..222) 2 aes eee 100.00 Fred) Collins: “janitor servicesns:c2a es ei. a ee 10.00 ADMINISTRATIVE REPORT 23 Geowmlee Davisvapostimaster, postage o-ea2 =) = tee eee 24.00 Eeononic nr ucolory] subscription) 32 2-- Lest eee ene 4.00 American Peat ‘Society, subscription -2--1++-=.-----=.--2---_.-_-- 3.00 Scientistic (Viatenalss Gonaspecinen| jars (22-22--<.---L2-._2s.--.-_- 15.84 AMenicanee allwavaubecphesSitasse sn aaa ans oo lel lesen al BAG, FEBRUARY, 1920. Mis lb. Rabertsom, stenograpNicrservices: -.2---..+..-...--.--=- 100.06 Ered Collimcamyanthonmsenuicesnm= sere =a ne See eee 10.00 Orville Barnes, extra janitor services ---------------------------- 4.50 VithiSerr eine. WSUPDNeSmee se sek se oS 32.79 Ee meine: oniniGhinahloGrss oes c—s nee oo oS se 25.00 Punch canimeathwavinubapresaw aoerie ss Te ai 8 oe Sa 2.10 Southern Telephone & Construction Co. ~------------------------ 3.50 Dixon) Dransies, smovineuoiice yiurniture) 222520 Fol) ee 41.50 MARCH, 1920. Herman Gunter, State Geologist, expenses March ____--_________- 23.54 Herman Gunter, State Geologist, salary Jan. 1 to March 31 ___-_- 625.00 Mrs. L. B. Robertson, stenographic services’ __-__--__--___________- 100.00 Pipe MOONINS wiaiMOrrset vices p14 02. Fok oo. st Ce bbe oe "15.00 SHIGE iy (COIN FS SEIR CO ee EE ee oe eee ae 14.25 Ged DapEeh ins WoOlice mentees esos 0k ee ue ee 41.66 De gae@os wnnmiture wo... stipplies 25-08 o 2 ba 34.00 eG me nesley-w lite Stppliess eases ano oS ae Te 42.25 Suuthermeeephone cen Construction Co). 2222-20 ke 3.50 Naezer-Rhades Hasdware. Go. supplies, 2.222522. Se 10.45 H. R. Kaufman, cleaning typewriter and supplies ---------------_- I1.0¢ Devan Nosttand o5, publicationy 222-422) en ee 2.0¢ Plc Applevard. printine vand™ supplies, 2202 2k Se 15.59 APRIL, 1920. Herman Gunter, State Geologist, expenses April ~-__-_--__--_--___ 62.38 ReeVieklanpersassistant, «salary for Aipril 222-02) 228 ee eee 175.00 Row Moehianpenmdssistant, expenses \April. ~~ 2-2-2222 s-=L 53.68 Mrs. ee Dewobertson, stenographic. services ...<22.=2-.-o2-2-.- 100.00 Satie OO ln mmce tru Cosme te ers ere he ST ee 9.00 reds Collins ranitommsenviCes (2-22-22 ae ee eee 15.00 Gene ber emulicwoulco rel fan= 25-222 ele ee eee 41.66 Samihern weclephotie co. Construction, Cos 22-2 obs. eee 3.5¢ ian Matsa TOME WOK cot-—2-2—2— 2S cece see eee eee eae 9.25 Srienticic MMaterials Gos «supplies * = 20.2 oa Se eee ea 40.86 CommercialedenttlizenwSapScriptione sss s= see =e eee ee ee 2.00 D. R. Cox Furniture Co., office and library supplies -----------_- 90.50: 24 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT Leon #lectrical Supply (Coy, asupplies? se. = 2— esas 2s Se ee 1.65 American) “Railway! =prescecs == ee ee ee ees 8.74 Clarks. Book) Store) «suppliess == a ee a ee 4.54 Tt: J. Appleyard, mounting, amaps, letter neads,{-- == <2 5 S25 eee 12.50 Tallahassee Wartety Works, 3.Sshoweasés: ="... -=s2 es) See 308.15 WeaGs Dixonssdraydaremence=*—= =o see = ee a eS Se ees 2.00 E.G; Chesley, i esuppliess2 2 = 22 42s 52 ee 4.5¢ MAY, 1920. Re. Moublame.sassistant, vsalary, tor, May. 2-22 Sess ee ee 175.00 Mrstale = Be Robertson, Services” =. 222-4 a2 = eee ee eee 100.00 Geos cba Perkins: -ofbice rent. 222-55". 3523 ee ee ee 41.66 MiddlesHlonida Ice Company, coupon) books 22 esse = 10.00 Ho VEseboniler, "siens =i. aise. Coe eee ee ee ee eee 16.0¢ Southesn ‘helephone &_ ConstructionsCo: #222 = 2 eee 3.50 University of Chicago” Press: subseription: =2522 === = ees 3.60 EeGan WV: JDreweiCos Ssupplies=— 2 as=- 2 ee eee 3.55 Sam (Cobb services 2 = a= ee a aS As See ee ee 9.00 DP Re Cox munities COs sotip plies eee eee eee ea 3.00 fn Ga Chesley, rc suppliest\2ase- = me ee oo fe SE ee eee 5.00 Dixon ltanster,, drayage s=2 5 se Se ee A eee ee 4.5¢ JUNE, 1920. Herman Gunter, State Geologist. salary April 1 to June 30__-____-_ 625.00 Ro M: sharper. assistant, Salary (for Jimne 2.2) 2s e = eee Dee 175.0C Mrs... Bo CRobertson: "services juste es ee ee 100.0¢ Geo) B:), Perkins. othice-remte a= see a? ee ga ee Re ee 41.66 Southern “Delephone '& sConstriction Go. 225-255 423. a ee 3.50 Yaeger-Rhodes: Hardware Go.,. ‘supplies. 22s = 1.00 Geo: 71. Davis; postmaster, box “rent. and! stampsseaes = eee 31.00 Geo. I. Davis, postmaster, 2,000 stamped envelopes ~------------_- 43.44 is 82> Week. sDrew- Co:,-oficersuppiies, 22. = a eer ee 4.90 American Railway” xpress ves - 2 6 Se ee 12.13 W.=1, Marshall} repatrstand job work: ~2=e => = eee rs a ee 5.00 Scientific Materials Co., supplies STATISTICS ON MINERAL PRODUCTION IN FLORIDA DURING 10918.* HERMAN GUNTER COLLECTED IN CO-OPERATION BETWEEN THE FLORIDA GEOLOGICAL SuRVEY AND THE U. S. GEOLOGICAL SURVEY. The total value of the mineral production in Florida during I9L8, as shown by statistics recently compiled, is $8,009,646, an increase over that for 1917, amounting to almost one-half mil- lion dollars, the total for this latter year being $7,534,834. The total mineral production in 1918 shows a decrease when compared ‘with the output for 1917. This decrease in quantity is attributable to general labor conditions, transportation fa- cilities and to governmental restrictions in force during the war period. Increased production costs were attended with an in- crease in price of the commodities marketed which is shown by the increase in the total valuation stated above. BALL CLAY OR PLASTIC KAOLIN The ball clays of Florida are white burning, refractory clays of high plasticity. The clay is quite widely distributed in central peninsular Florida being commercially produced in Putnam and Lake counties. The manner of occurrence is in association with a rather coarse sand and quartz pebbles, from which it is sep- arated by washing. During 1918 three plants were engaged in mining ball clay in Florida. These were the Edgar Plastic Kaolin Company, Edgar; the China Clay Corporation, Oka- humpka; and the Lake County Clay Company, Okahumpka. ‘The value of the clay produced is not separately given, but is included in the total mineral production of the State. *First published as Press Bulletin No. 11, October 6, 1919. Reprinted here with a few additions. 25 26 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT BRICK AND TILE The conditions prevailing during the year 1918 were unfavor- able to the brick and tile industry, due to governmental building restrictions, which of necessity reduced the demand and resulted in a decided decrease in the volume of business. The total num- ber of common brick manufactured in Florida during 1918 was 17,561,000. In addition to building brick, there was also produced tile, drain-tile and fire-proofing brick. The total value of brick and tile products for the year 1918 was $181,339. The following firms in Florida reported the production of brick during 1918: Barrineau Bros., Quintette. Campville Brick Company, Campville. Clay County Steam Brick Company, Green Cove Springs. Dolores Brick Company, Molino. Florida State Reform School, Marianna. Gamble & Stockton Co., 108 W. Bay St,, Jacksonville. G. C. & C. H. Guilford, Blountstown. Glendale Brick Works, Glendale. Hall & McCormac, Chipley. Keystone Brick Company, Whitney. Law & Co., Brooksville. Lee Miller, Whitney. Joe Messina, Palm Beach County. Ocklocknee Brick Company, Ocklocknee. Tallahassee Pressed Brick Company, Havana. Whitney Brick and Manufacturing Company, Whitney. Wilson-Owens Brick Company, Callahan. FULLER’S EARTH The Fuller's earth industry of Florida was very active dur- ing 1918. The abnormal demand for fuel oils and gasoline had its reflection in the increased demand for Fuller’s earth. The prin- cipal use of the Florida Fuller’s earth is in clarifying and filtering mineral oils, although during recent years experiments with this earth in the refining of edible oils and fats have proven very sat- isfactory, and its use for this purpose is increasing. Florida has been the chief producer of Fuller’s earth since the beginning of STATISTICS ON MINERAL PRODUCTION 27 the industry, and is credited with approximately four-fifths of the total production in the United States for the year 1918. ‘The sta- tistics on production are not separately given, but are included with the total mineral production of the State. The following companies are engaged in the mining of Fuller’s earth in Florida: The Atlantic Refining Company, Ellenton. The Floridin Company, Quincy and Jamieson. The Fuller’s Earth Company, Midway. The Manatee Fuller’s Earth Corporation, Ellenton. ILMENITE The production of ilmenite (an oxide of titanium and iron, used chiefly in the manufacture of steel) from the beach sands at Pablo Beach, which was begun in 1916 by Buckman & Pritchard, Inc., was continued during 1918. The value of this product is not included in the summary statement of mineral production for the year. Considerable quantities of zircon and other rare minerals are associated with it. LIMESTONE The total amount of limestone produced in Florida for quick _lime, building, road-making, railroad ballast, and agricultural pur- poses, and including also the flint rock associated with the lime- stone, is valued at $365,293. The following companies in Florida have reported the production of lime, limestone or flint for the year 1918: Florida Lime Company, Ocala. Blowers Lime and Phosphate Company, Ocala. Crystal River Rock Company, Crystal River. Live Oak Limestone Company, Live Oak. Florida Crushed Rock Company, Montbrook. E. P. Maule, Ojus. Pineola Lime Company, Pineola. A. T. Thomas & Co., Ocala. PEAT. Production of peat in 1918 was reported from Marion County by the Alphano Humus Company, Ocala, Florida. The peat pro- 28 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT duced by this company is placed on the market in the form of pre- pared humus and is used largely as a fertilizer filler. This being the only plant reporting for this year, the production is not listed separately, but is included with the total for the State. PHOSPHATE The following statement on the production of phosphate in Florida was issued by the State Geological Survey in June, 1919, as Press Bulletin No. 10*: “The amount of phosphate rock shipped from Florida, although the production was very much curtailed during the European War, was greater in 1918 than that of the preceding year. The statis- tics, which are collected by the Florida Geological Survey in co- operation with the United States Geological Survey, indicate that during 1918 the total shipment of phosphate rock from Florida was 2,067,230 long tons, as compared with 2,022,599 long tons in 1917, an increase over that year of almost fifty thousarid tons. Of this amount, 1,996,847 tons were land pebble phosphate, the remainder being hard rock and soft phosphate. Of the total ship- ments only 104,946 tons were consigned to foreign markets, show- ing a decrease over the amount exported in 1917. The domestic consignments, however, were more than 25,000 tons in excess of those for the preceding year. ‘ “The increase in shipment was principally from the hard rock mines, the output from this area being more than three times that in 1917. The shipment from the pebble field for 1918 remained practically the same as for 1917. The decided increase of ship- ments from the hard rock over the pebble rock mines is quite the reverse of the past few years, since it has been from the pebble field that increases have been most rapid. During the period of the war, production was greatly interfered with, some companies closing for a portion of the time, others running periodically, still others operating regularly but at a reduced capacity of output. Regardless of market conditions, several mines operated during the year on a reduced scale, with the result that at the close of the year there were quantities of rock in storage awaiting shipment. *The Phosphate Industry of Florida During 1918, by Herman Gunter, Fla. State Geol. Surv., Press Bulletin No. 10, June 5, roro. STATISTICS ON MINERAL PRODUCTION 29 * “The value of the phosphate shipped from Florida in 1918, ac- cording to returns from the producers, is as follows: Land peb- ble, $5,565,928; hard rock, including soft phosphate, $524,178, making a total valuation of $6,090,106. The value of shipments during 1917 was $5,464,493. An increase of more than $600,000 is thus indicated in total value of shipments for the year 1918 over that of 1917. The total production of phosphate rock in Florida since the beginning of the industry in 1888 to the close of 1918, according to statistics collected by the Florida Geological Survey and the United States Geological Survey, is estimated to be 35,210,314 tons, with a total valuation of $129,055,787. “The quantity of rock mined during the year is necessarily not the same as the amount shipped, for there are variable amounts on hand and held in storage at the close of each year. The total quan- tity of phosphate mined in Florida in 1918 was 1,884,891 tons. The quantity mined in 1917 was 2,328,138 tons. This decreased output of 443,247 tons in 1918, as compared with 1917, reflects the conditions due to our entry into the war, such as difficulty in getting labor, restrictions placed on and subsequent shortage and increased cost of fuel and lack of shipping facilities.” SUMMARY OF SHIPMENT OF PHOSPHATE IN FLORIDA FROM 1914 TO 1918, INCLUSIVE Pebble Rock: 1914 1915 1916 1917 1918 (BONES dic. hascaaxscctese Sonccvaak oecesews 625,821 185,846 172,427 138,010 64558 MW ORTIES TIO n ros tacves Sosraten nero ere 1,203,381 1,122,635 1,296,331 1,865,981 1,932,289 Total shipment.........e:s0000++ 1,829,202} 1,308,481] 1,468,758] 2,003,991] 1,996,847 Hard Kock: ¥ Reeridctedt tas ys oe woes 303,172 43,314 28,045 12,403 57,771 Daneshiete ee 6.517 6.816], 19/042 6.205 12/612 Total shipment: .....-<-c.0.-52-+.0. 309 689 50,130 47,087 %*18 608 *70,383 Pebble and Hard Rock Combined: Bixpdiiddaktteiistieticon sk de 928 993 229,160 200,472 150,413 122.330 Domestic....-..se00+-+ 1,209,898] 1,129'451| 1,315,373] 1,872,186] 1,932,288 Total shipment 2,138,891] 1,358,611 1,5'5,8451 2,022,599 2,067,230 Total shipments from beginning of mining in 1888 to 1918, inc., 35,210,278. — *Includes soft rock phosphate. 30 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT LIST OF PHOSPHATE MINING COMPANIES OF FLORIDA, 10918. Acme. Phosphate, Company === Morriston, Fla. Alachua Phosphate Company ---------- Gainesville, Fla. American Agricultural Chemical Co.--2 Rector -St.. New York, N. Y.. and Pierce, Florida. Americans Cyanamids Go. (2_ 52222252 511 Fifth ‘Ave., New York, N. Y., and Brewster, Fla. Armour Fertilizer Works ------------ Union Stock Yards, Chicago, IIl., and Bartow, Fla. BP.) Bassettw isan a se eee eee Newberry, Fla. Peter B. and Robt. S. Bradley_-----_- 92 State St., Boston, Miass., and Floral City, Fla. JR Butrcenhachice no, 22a ee lee Elioldec nia: Cue Catn pete a Bee es Set eS Ocala, Fla. Charleston, S. C., Mining and Manu- NEVE GUE Gri ary Glo) eee Uae eee Richmond. Va., and Ft. Meade, Fla. Coroner “Phosphate Co," 22s eie see 99: John St., New York, N. Y., and Plant City, Fla. Cummer Lumber Co. __--------------- Jacksonville and Newberry, Fla. Dunnellon: “Phosphate. Co,.22)- -2-=" 106 E. Bay St. Savannah, Ga., and » Rockwell, Fla. ExporeaenosphatenC one -2=—=—=——== = 8&7 Milk St., Boston, Mass., and Mul- berry, Fla. Florida Phosphate Mining Corpora- (AGS aA) eee Sn St alae a seu oe ee See ee Dickson Bldg., Norfolk, Va., and Bar-- ' tow, Fla. Florida Soft Phosphate and Lime Co.--Ocala and Citra, Fla. Brankiin (ehospiates CO.e sss =e Newberry. Fla. Holdge, Phosphate ‘Come s-=2- 2 as 220 W.. Ninth St., Cincihnati, O., and ! : : Inverness, Fla. International Agricultural Corporation-61 Broadway, New York, N. Y., and Mulberry, Fla. International Phospfiate Co. 2=-222-5-2 27 State St., Boston, Mass. and Ft Meade, Fla. akeland@ Phosphates Cone === aa Lakeland. Fla. y Moatiial) (Mining Co, 22s =" ea Se eres toz KE. Bay St. Savannah, Ga., and Floral City, Fla. Ofismehosphates Gonna. ee ees Benotis, Fla. Ralmettomehosphate Comm 2== a= == 812 Keyser Bldg., Baltimore, Md., and Tiger Bay, Fla. Phosphate Mining (Coy oJ. a ae ss Tohn St.. New York, N. Y., and Nichols. Fla. Seminole Bheeohate Co eee eee Croom, Fla. Swavihanghar eiaah Wrage jee Ocala, Fla. Societe Universelle de Mines, Indus- trie, Commerce et Agriculture ______ Pembroke, Fla. Southern Phosphate Development Co.__Inverness, Fla. Shien eM Och Meare a FMS tr Ny Union Stock Yards, Chicago, Ill., and Bartow, Fla. HA OM pS Ole. ase eee ee Ft. White, Fla. STATISTICS ON MINERAL PRODUCTION 31 SAND AND GRAVEL The sand produced in Florida is used principally for building, paving and road-making, filtering, molding, cutting, grinding and blast purposes. The gravel produced is reported as used for roof- ing material and for railroad ballast. ‘Deposits of clayey sands and gravels occurring in the southern part of Jackson County have also been quarried and used as road surfacing materials. The total production of sand and gravel for 1918, as shown by returns from the producers, was 158,489 tons, valued at $48,768. The companies reporting the production of sand and gravel in Florida during 1918 are the following: Atlantic Coast Line Railroad Company. Akerman & Ellis, Lake Weir. Interlachen Gravel Company, Interlachen. Tallahassee Pressed Brick Company. Havana. Tampa Sand and Shell Company, Tampa. SAND-LIME BRICK The materials used in the manufacture of sand-lime brick are sand and lime. The bonding power of the brick is due to the chem- ical reaction between these ingredients. The chemical changes oc- cur in the presence of heat, pressure and moisture and result in the formation of hydro-silicates of calcium and magnesium. The sand used in the manufacture of sand-lime should be com- paratively pure and preferably with some variation in the size of the grains. The mixture of lime, sand and water is cut in the form of bricks and conveyed to a hardening cylinder. Necessary heat and pressure are obtained in the hardening cylinder adapted for the purpose. The sand-lime bricks are placed in this cylinder and subjected to a pressure and temperature which vary according to the method of treatment. Two companies were actively engaged in the manufacture of sand-lime brick in Florida during 1918 as follows: The Bond Sandstone Brick Company, Lake Helen. The Plant City Composite Brick Company, Plant City. The production of sand-lime brick in Florida during 1918, al- though not separately listed, is included in making up the total min- eral production of the State. 32 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT WATER The total sales of mineral and spring water in Florida dur- ing 1918, as shown by the returns from the owners of springs and wells, amounted to 164,630 gallons, valued at $12,883. The companies reporting the production of water for com- mercial purposes during 1918 include the following: Espiritu Santo Springs Company, Espiritu Santo Springs, Safety Harbor, Florida. Good Hope Water Company, Good Hope Mineral Water Well, Jackson- ' ville, Fla. Hampton Springs Water Company, Hampton Springs, Hampton Springs, Fla. Purity Spring Water Company, Purity Spring, Tampa, Fla. Tampa Kissengen Well Company, Stomawa Well, Tampa, Fla. Summary statement of mineral production in Florida during 1918: Common or building brick, fire-prcoofing brick, tile and drain tile___-$ 181,339 Lime and limestone, including lime and ground limestone for agri- cultural use, and crushed rock for railroad ballast, concrete and mOad) material! 22=20 Soe ea ae 365,203 Minerale waters: 2.2232. 2 8h Dee ete ne kes. TEN aes ee ee a 12,883 Ten @splvatey to Clk. sie ot cae Ae eR ap fee ee ea 6,090,106 Mineral products not separately listed, including ball clay, Fuller’s earth, pottery products, abrasive material, sand lime brick, and sand. ‘atrd ‘gravels ant Se a Se ees 2a ae ee 1,360,025 Total mineral production during 1918 valued at —------__----=- $8,009,646 FORAMINIFERA FROM THE DEEP WELLS OF FLORIDA (WITH MAP AND THREE PLATES IN TEXT) ; JOSEPH A. CUSHMAN A year ago I published the results of a preliminary study of the foraminifera of a number of deep wells of Florida.* A general ac- count of the geological formations encountered in the drilling was given and but little attention was paid to the distribution of the species themselves. This paper gives the systematic information as to the foraminifera and especially those species of the Miocene and Upper Eocene formations. Those of lower age are not specif- ically described here as it is a rule of paleontology that new species should not be described from well borings because of the uncer- tainty of depth and the impossibility of giving a type locality from which future collections may be made. As a result these are simply placed in their genera and figures in most cases given in order that they may be available for future comparisons. In the previous paper already referred to mention was made of the sources of error which should be kept in mind in the study of well borings. Two things especially may again be noted: first that fossils may fall down from levels above that at which the drilling is actually taking place, especially when the well is not cased; and secondly, that fossils cannot be encountered until the depth has been reached at which they occur. Therefore fossils appearing below a hori- zon which has already been definitely fixed must have come from above and are accidental at that level. Many of the foramitifera from the well botings are not well preserved and little can be made out except the genus to which they belong. Also in several genera the different species have not been closely studied by work- ers on the foraminifera. Among numerous genera such as Poly- stomella, Nonionina, Amphistegina, etc., there are many different forms which are apparent in a study of the fossil material of the Coastal Plain and West Indian areas. These are usually *Twelfth Annual Report of the Florida State Geological Survey, 1919, PP. 77-103. 33 34 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT rather definitely limited in their vertical distribution, and_ their careful discrimination should make possible a definite placing of these in their proper geological horizon. The various formations shown by the foraminifera will be discussed in the notes that fol- low. The location of the wells from which material was used are given in the following list and the accompanying map shows their distribution in the state. In the systematic portion of this paper references are given to the original descriptions and to published figures with a more complete reference to the distribution in the Coastal Plain area and that of the West Indies, both of which are related to the Florida well material. . The approximate locations of the wells, and the depths from which the material studied was obtained, are as follows, the num- bers corresponding with those on the map. More detailed informa- tion about each was given in the previous paper and need not be repeated here. Samples were studied from the entire depth of the well unless otherwise indicated. I. Panama City, Washington County, 470 feet. 2. Bonheur Development Co., near Burns, Wakulla County, 2,152 1eet, 3. Jacksonville, Duval County, 980 feet. 4.) St. Augustine, St. John’s County, 160 to 1,051 feet: 5. Anthony, Marion County, 50 to 500 feet. 6. Eustis, Lake County, 100 to 180 feet. 7. Bushnell, Sumter County, 380 to 3,080 feet. 8. Apopka, Orange County, 50 to 390 feet. g. Sanford, Seminole County, 95 to 113 feet. to. Cocoa, Brevard County, a sample from 190 feet. I1. Tiger Bay, Polk County, 30 to 770 feet. 12. Okeechobee, Okeechobee County, 41 to’ 500 feet. 13. Boca Grande, Lée County, one inadequate sample. 14. Fort Myers, Lee County, 200 to 950 feet. 15. Marathon, Monroe County, 2,300 feet. FORAMINIFERA FROM DEEP WELLS 35 Fig. 1. Sketch map of Florida showing locations of wells from which foraminifera were obtained. Wells numbered as in the text. 36 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT PEERS Toei N From the known distribution of the Pleistocene of Florida sev- eral of the wells, and especially those in the southern part of the state undoubtedly penetrate Pleistocene sands for some distance near the surface. There are, however, no foraminifera in these sands which would give a definite clue as to their age. PLIOCENE In the earlier report | thought that there was a definite develop- ment of the Pliocene in the upper part of the well at Okeechobee. However, a study of the foraminifera from the upper levels—41 to 56 feet—shows that most of these have a Miocene relation rather than a Pliocene one. Therefore, the well samples give no definite information as to the distribution of the Pliocene below the surface. MIOCENE Only slight information was available at the time the previous paper was written, but a detailed study of the foraminifera has shown not only the occurrence of Miocene foraminifera in a num- ber of wells, but that they have definite relations with the Miocene of other regions. The accompanying table shows the distribution of some. of these Miocene species; their distribution in the Florida wells and their occurrence in related areas. As the table shows, certain of the levels in a number of wells are very definitely related to, if not identical with the Choctawhatchee Marl of Florida. This is especially marked in the well at Okeechobee, and the upper lev- els of the wells at St. Augustine, Fort Myers and Marathon. The one species noted from the well at Jacksonville also seems to have this same relation. A number of species, especially those from the deeper parts of the wells at Fort Myers, Okeechobee and Marathon, seem to be more closely related to the Miocene of the Gatun formation of the Panama Canal Zone. -A number of species also occur in the upper Oligocene of the Panama Canal Zone. The relations to the Miocene Marls of Cuba, Santo Domingo - and Jamaica are also indicated. As a result of this study, and allowing for errors in drilling, the Miocene may be rather definitely located at the following depths from these wells: FORAMINIFERA FRO M DEEP WELLS a7 DISTRIBUTION OF MIOCENE FORAMINIFERA. F mies oo | O yh te Pa Soe Fas oe je|3/é }e\e ; Ss. aul a sls B | ee [8 la |e a 5 = 3) | 3 3 Fie eOn et a|§ B | yj r ov) Pe hal acy geen bet of [ie |S e * Si erp hie eee = o 3 g/41P e]/@) eis] 8 é| S)ele/}e2/ala]s]s Slelal(eie(Sidlalaislrlels > fs} ap fee i=} s n faq] [o} e,| a a} s/o]; ° o |) & Sin41)A ai/a]O S}/a}/hi/a)] 8 ela} 8] & o me Gi | ee || SL Sh Ne el/sal a] s}ol/a|/s]5 EY Sear el tontoen Lean lege lh ee slp tue |, ey o) qu s 2 i re eel ae a qa i=} 3 ‘=| a 3° Go Q ayla|B/O!la | O/AlLOl/Hlal/Al/olp Textulariidae | Pale halle | Textularia abbreviata d’Orb, —~-----~~ [sees 20 ees |e |e ||---|---| 2<|---|---|---|---| Textularia gramen d’Orb. --------~--- feral aeticcaealngial “aap ee ---|--- i as Textularia agglutinans d@’Orb. -----~-_- PaNerhRats RoR ae Sar ||SSS hel x | | Textularia panamensis Cush, -~--~~~~-~ ase |-s=|(SOU 524-2 |ea|eee | ee ees ee ee ee ee Verneullina spinulosa Rss. -~~~-~-~~~~-~ sael|e==||-5= PS) Set) | ee ee ee ea eae Gaudryina flintii Cush, --~-------~--- S| (PANO) eae it i ---|---|---|---|---] X Clayulina communis d’Orb, ---------~ cel | oS) See lle ee ec rales £2||- 22: | |200] Virgulina squamosa q@’Orb, ---~--~---- se|Ene|=e atl io |iile—||aa= a5) e2||2=|ES|| >\le== 245 Lagenidae | | |e Cristellaria rotulata Lmk,. ---------~-- | ees | eee | me | ee cb eee | ees | reer ems eters | ee | ae ' Cristellaria, ‘americana vari) ==2-====—-— we Pa HU eee Ie: ae ee ee ees Cristellaria spinosa Cush, -----_------ 458! | Polymorphina lactea (W. & J.) ------ 020.0) 52 | 80) axel eal ee ee eS eee 550] Polymorphinawelerantissima (be) aged.) |==—| 11 0a pale |||) oxa ES ee eee Globigerinidae loa | Globigerina bulloides @’Orb, _-_-----__ |---|---|---|380| 180|| X|---| X] X| X| X| X|.xX fea 402| 398|| | Orbulina Suniversayds@rby =——-- 22-222 | | ee es fee | eee | mee een DPN ENG | emer | NG | eee ‘ bea reins ii oll mcipil | Rotaliidae ae eel ee | | haees| Discorbis bertheloti (d’Orb.) -~-~~----_|+-- [ey es RpCAeT | El SG | NG | Se eae ee (ee Feeaihe ll 54 tee ant) Truncatulina refulgens (Mont.) —-~~_~-_ B= (200) |e ae >< ee (eee (eee Fee A Truncatulina americana (Cush.) ~~~ ~~ Se |e HOU) ET at OH <<] | et] See ee (ED. |200 458] 398|| | | ie Truncatulina pygmaea Hant. ~---____ pee | eee 3.610) | eee [fd | eee | ee eee eee eee eee | KG) SKS Truncatulina basiloba Cush, ~~~~--~-~~ | | ee fe a ee eC et (a ee aes | ee ieee ieaievulcner st 4 | eal Rotalia” beecarii (Linn.) —~-_-----__-_- ee |e 00 Als |e Se ee | ENS Ses eae |aee Tc | | Nummulitidae IScontee tee at ite Hgaralee ta ctl bl Nonionina scapha (F. & M.) —~_______ Ee | eel Sel catesu| || oc] he > cle <= i) De el > Pe an BAN ee thse Laat yl | Nonionina depressula (W. & J,) ~~ ____ [eee AS ee aes yc) [a hae Has an Polvstomellae ierispa Guinn): ee soe =e eee ales al Zaller Soff losis] [a 5) sae | 2sln== ised | 561 Wace as apse a Polystomella craticulata (F. & M.) —__|_-__] 88 B30 See ee [ee |e ea eee ee Polystomella striato-punctata (F.&M.){___|___|___| SN Ses fips |) pos [pC | | es NaS , iS bene tal Ne el ta aloe | Lee eA Amphistegina lessonii d’Orb, ________ [a= |==e1500)e56)1.80)?||/eexel axe eae lee exe] GEE oS ¥ [eteral eeu amen] n6.21 (reales lade [kel Asterigerina angulata Cush. ._________ (Rea See Ee S6 lees (sole tele OS Lee ee $7 Figures are the depths in feet at which the species occur. 38 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT New City Well at Jacksonville, Duval County, Fla. The Miocene reaches its lowest limit somewhere between 510 and 550 feet. In this same range Lepidocyclina fragments occur, indicating that the line between these forma- tions comes somewhere in those forty feet. Ponce de Leon Well at St. Augustine, St. Johns County, Fla. Miocene foraminifera very definitely shown at 88, 170 and 200 feet. I had no mate- rial between 200 and 440 feet, therefore the lower limit of the Miocene can not be definitely determined. Well No. 3 of the Palmetto Phosphate Company, near pit No. 1, about 2°%4 miles northwest of Tiger Bay, Fla. Although the foraminifera were largely lacking or poorly preserved in the upper 310 feet, it is probable that a considerable amount of this should be placed in the Miocene. City Well at Fort Myers, Lee County, Fla. From the specimens ob- tained at 300, 360, 600 and 680 feet, it is very clear that the levels between 300 and 600 feet should be definitely referred to the Miocene: that at 680 feet may possibly be Upper Oligocene. The material at 300 feet seems to be closely related to the Choctawhatchee Marl, while that at 360 and 600 feet is related to the Gatun formation of the Panama Canal Zone. Well of the Okeechobee Ice and Electric Company at Okeechobee, Okee- chobee County, Fla. Allowing for possibilities of error, the specimens indi-- cate Miocene from 51 feet to 458 feet. Most of the species of the Okeecho- bee Well are clearly related to those of the Choctawhatchee Marl, and a few to the Gatun formation of the Panama Canal Zone. < Well of Florida East Coast Railway at Marathon, on Key Vaca. Mon- roe County Fla. Samples from 78, 180 and 308 feet all seem to be definitely Miocene and very closely related to the Choctawhatchee Marl, especially those from 78 and 180 feet; those from 398 feet are perhaps more closely re- lated to the Gatun of the Panama Canal Zone. There is a considerable dif- ference between the species found at Marathon and those found at the other wells in the region, probably due in part to the difference in ecological condi- tions, owing to the warmer waters in the southern part of the area. MIDDLE AND UPPER OLIGOCENE In the Tampa formation, which is now classed as Upper Oligo- cene, and in the upper Oligocene of Panama, Anguilla and Cuba, there are horizons characterized by species of Orbitolites. At An- guilla and Cuba these occur with a large form of Gypsina globulus Reuss. In the well at Marathon this same combination of Orbito- lites and GYpsina occurs at a depth of 589 te 628 feet and probably represents an equivalent of West Indian Upper Oligocene. Orbito- lites is present in the well at Panama City, and may possibly rep- resent this same general age in that well. FORAMINIFERA FROM DEEP WELLS 39 LOWER OLIGOCENE In a number of wells there are fragments of Lepidocyclina that may possibly be of Lower Oligocene age but they are not suf- ficiently well preserved to admit of specific determination. There- fore the Oligocene must be very questionably placed in any of these wells except in that at Marathon where at 852 and goo feet there occurs the genus Heterosteginoides which I have found in the Oligocene of Panama and the West Indies. EOCENE The Upper Eocene represented by the Ocala Limestone can now be very definitely placed in a number of wells. The four species— Lepidocyclina ocalana, L. pseudomarginata, L. pseudocarinata, and L. floridana, together with Heterostegina ocalana, mark very defi- nitely the facies of the Ocala Limestone which is developed in north central Florida. The accompanying table shows the depth at which these species occurred in a number of wells. There is no trace of Orthophragmina or of the species of Lepidocyclina and Operculina which are characteristic of the facies of the Ocala developed in northern Florida and southern Georgia. As already noted in the previous paper the Ocala Limestone seems very definitely to be only about 4o feet thick in the various wells in which it was found. Below the typical Ocala there occurs a horizon characterized by a large species of Nummuulites and this in turn in one well—that of the Bonheur Development Company at Burns, Wakulla County, has a horizon marked by numerous specimens of Rotalia armata which, however, does not seem to be developed in any of the other wells. In the well at Marathon on Key Vaca there are a number of rather large specimens which may be Conulites americana, or a re- lated species. C. americana is known from the Eocene of St. Bartholomew, Leeward Islands, Haiti, Cuba and Panama. These specimens in the Marathon Well may therefore represent an Eo- cene horizon below that marked by the Lepidocyclina. The well is - not cased below the point at which these appear, therefore this ac- tual point of occurrence is somewhat vague. It, however, does represent an Eocene which is apparently typical of Panama and the West Indies, and unlike that of northern Florida. 40 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT DISTRIBUTION OF EOCENE FORAMINIFERA IN FLORIDA WELLS. ov od iS = D d = é : Sn eae ee ee A. |g z ie < z | a a g 5 3 i) = r | n c ro) ~ 5 = Siu eae |e etal re S 3 5 oH JL eet eto) a a Lepidocyclina ocalana Cushman —---~~ —=--|510-550|=-—_|=—-=|"=__ || 143| 190/360=400|/2222 Lepidocyclina floridana Cushman —--~—-{~-~---|---~---~- ees | ae eee lS 9.036 0-4-0 0) Lepidocyclina pseudomarginata Cush-| | | | Tiel riigres ee eee eee A 2 2222 |b = 5150) === |e eee | See 5 ed) ees Lepidocyclina pseudocarinata Cushman|____|_~-~~~~ Joes eee | See et 0360-20 Wes Mepidocyelinay species ==) -=2--— =e. =e P, Bwi--= [2247'S 22S ee | Soe | el a ee eee Heterostegina ocalana Cushman —_--~ 0) Se ee aa 13) 90) 360 = 4010 ere NAMA. Soy Sa | 150] 50 |====|lero 0/13 S17 peas Pe Kotalia armata d’Orbigny ----------- tt 310) Se ee ee eee ee ee _——— Conulites americana Cushman —-~-~--~_ eee ee nen (eee | eee a ieee (eer ee 10004 Figures are the depths in feet at which the species occur. LOWER CRETACEOUS As already noted in the earlier report a number of the wells enter what seem to be Lower Cretaceous limestones characterized by Orbitolina and numerous other associated species. A table is given showing the distribution of these other species in the various wells where a species occurs in more than one well. As a rule these are from brownish crystalline limestones which come in below the Eocene represented by the abundant Nuwmmulites, The conical and broader concave forms are present in a number of the wells and their relations have been noted in the earlier report. DISTRIBUTION OF SPECIES OCCURRING WITH ORBITOLINA. ¥ a 6 | § a) 2 : A = E on eae lias o mie wi mn 5 S) L “< + is ad 4 a 3 a 5 S mH oO ~ n o an = = = ss S| 5 2, 3 m 5 nn <= ca} oH a = DiMGInE aCeonical sae ee io nasa =| 325|/820-| 44] 110| 160] 115 reales d |900 | | Haplophragmium sp, —-—-——-—-—-==—=—————--==—-———-_— 1_o__ teal 440| 160|--__ Saal ae 1720 84 TesitulaniaeS Die eS = Se ee |) Ee ee ren) L — PAUSINI Ra Se Re les ec Nes ape et a (Se pmoa-|o 9. les Le ga 6) eo) aie [ 726 | | | | Pee Rae eg £Neg AN el A bs | tes) 40) 1601 ao ol eee EGU TRa oa Oe eee ics ee ER ee Jose 222) 440-2 01 25012 iin Teripiansihose ) (yeh See ee ee a ee RSS RPV vist) [2S |Sa 8 a) a5 l(b R45] | | | @yvmoqeeofowibhee) Choy 2h eS [=== (SAD ad 0 ee ee | eelel |e ee | 9¢0 | | | | Figures in the columns indicate the highest points in feet at which the various species were recognized in the wells. FORAMINIFERA FROM DEEP WELLS 41 SYS TEMAIte LIST OR SPECIES LITUOLIDAE Genus Haplophragnium Reyss, 1860, Haplophragmium sp. Plate 1, figure I. A coarsely arenaceous species, largely coiled, but the later chambers showing the uncoiling character occurred at 1,027 feet in the, Bushnell Well. Haplophragnuum sp. Plate 1, figure 2. A few specimens of an elongate form, not well character- ized were found at 1,720 feet in the well at Marathon. Haplophragmium sp. Plate 1, figure 3. Very irregular specimens, rather variable in shape, were found in the well at Anthony at 160 feet, and at Jacksonville, 820-845 feet. Haplophragmium sp. Plate 1, figure 4. A single, rather poorly characterized specimen was found at 440 feet in the Ponce de Leon Well at St. Augustine. Genus Conulites Carter, 186. Conulites americana Cushman. Conulites americana Cushman, Publ. 291, Carnegie Institution of Wash- ington, 1919, p. 43, fig. 3 (in text). In the well at Marathon on Key Vaca there are numerous specimens which seem very close to this species described from St. Bartholomew and Cuba, and known from Haiti and Panama. This therefore represents an Eocene horizon, and is of interest if the West Indies can be definitely correlated with Key Vaca by placing more’ than a thousand feet below the surface fossils which in Cuba are now considerably above sea level. 42 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT Genus Orbitolina d’Orbigny, 1847. Orbitolina species. In a number of the wells a small conical species is found, sometimes in considerable numbers. This occurs at the depths indicated in the following wells: Bonheur Development Company, Burns, first noted at 325 feet; New City well at Jacksonville, 820- 845 feet; Ponce de Leon Well, St. Augustine, at 440 feet; well of Compagnie Generale des Phos. de la Floride, at Anthony, 160 feet ; well of J. Wiggins, at Eustis, 160 feet ; well of Dundee Petro- leum Company, Bushnell, first occurrence noted at 890 feet, but probably occurs much above this level; City Well at Apopka, rus teet; Well No. 3,.Palmetto Phosphate “Company, 203-4 miles northwest of Tiger Bay, 550 feet; and well of Florida East Coast Railway at Marathon, on Key Vaca, 1,248 feet. This species seems very close to a species which is abundant in the Fredericksburg series of the Comanchean of Texas, which in turn is very similar to a species found in the Lower Cretaceous of the Pyrenees of Spain. Orbitolina sp. In several wells at some distance below the conical species there is a much larger species, broad, low with a concave base like that of O. terana and species of the Lower Cretaceous of Europe. O. texana is characteristic of the Trinity series of the Comanch- ean of Texas. It is found at the following depths in the Florida wells: Jack- sonville, 900-980 feet; Bushnell, 1,000 feet, Marathon, 1,720 feet. TEXTULARTIDAy Genus Textularia Defrance, 1824. Textularia abbreviata d’Orbigny. Textularia abbreviata dOrbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 249, pl. 15. figs. 9-12 (7-12). Bagg, Bull. ‘Amer. Paleontology, vol. 2, No. 10, 1898, p. 18; Maryland Geol. Survey, Miocene, 1904, p. 470, pl. 132, fig. 4 Cushman.. Bull. 676, U.S. Geol. Survey, 1918; p. 46; Bull. 203, U..S. New Nitise eLOnS pees le ple On ties ane FORAMINIFERA FROM DEEP WELLS 43 A specimen which seems to belong to this species was found in the material from 200 feet in the Ponce de Leon Well, St. Au- gustine, Florida. It is recorded from the Culebra formation of the Panama Canal Zone, and by Bagg from the Miocene of Maryland. Textularia gramen d’Orbigny. Textularia gramen d’Orbigny, Foram, Foss. Bass. Tert. Vienne, 1846, p. 248, pl. 15, figs. 4-6. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 365, pl. 43, figs. 9, 10. Cushman, Bull. 676, U. S. Geol. Survey, 1918, pps re, 45, Diet, 21.) 1; pl. 2, fe. rs pl. o@° figs: 245. Specimens of this species were found in two Florida wells, the Ponce de Leon Well, St. Augustine, at a depth of 200 feet, and the well of Okeechobee Ice and Electric Co., Okeechobee, 403-458 feet. : Besides being found in the Miocene of Maryland, Virginia and South Carolina, I have recorded it from the Miocene of the Choc- tawhatchee Marl of Florida, at Jackscn Bluff and one mile south of Red Bay. Textularia agglutinans d’Orbigny. Textularia agglutinans d’Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, ‘“Foraminiferes,” p. 136, pl. 1, figs. 17, 18, 32-34. Cushman, Bull. 676,-U452 Geol} Survey; 1918; "p..46, pl. 0, fig. 6; Bull, 103,.U.-S:> Nat: Mus., LOLS DS 2 ple lO LIS. 3. The only specimens which can be referred to this species are from the Okeechobee well at a depth of 380-403 feet. The species is recorded from several localities in the Miocene of the Coastal Plain and from the Culebra formation of the Pana- ima Canal. Zone. Textularia sagittula Defrance, var. fistulosa H. B. Brady. Textularia sagittula Defrance, var. fistulosa H. B. Brady, Rep. Voy. Chal- lenger, Zoology, vol. 9, 1884, p. 362, pl. 42, figs. 19-22. Brady described this variety in which the outer borders of each chamber in the adult are prolonged into tubular projections. He records it from tropical and sub-tropical localities. It is interesting to find this species in the southernmost locality, that of the well at Marathon on Key Vaca, at a depth of 305 feet. 44 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT Textularia panamensis Cushman. Textularia panamensis Cushman, Bulletin 103, U. S. Nat. Mus., to18, p. 53); ple Zour Piast. A single, rather typical specimen of this species was obtained from the well at Fort Myers, at a depth of 600 feet. 2 The type of this species is from the Miocene of the Gatun for- mation of the Panama Canal Zone. Textularia sp. An elongate species, generally quadrangular in transverse sec- tion, gradually tapering toward the initial end, was found in com- pany with Orbitolina in several of the wells. They are as follows: City Well at Apopka, 250 feet; Ponce de Leon Well, St. Augustine, 440 feet; and Well No. 3, Palmetto Phosphate Company, 2 3-4 miles northeast of Tiger Bay, 720 feet. Genus Verneuilina d’Orbigny, 1840. Verneuilina spinulosa Reuss. Verneuilina spinulosa Reuss, Denkschr. Akad, Wiss. Wien, vol. 1, 1850, p. 374, pl. 47, fig. 12. H. B. Brady, Rep. Voy. Challenger, Zoology, vol, 9 1884, p. 384, pl. 47, figs. 1-3. Cushman, Publ. 291, Carnegie Institution of Washington, I910, p. 34. The only one of the wells at which this species occurred is that at Marathon, on Key Vaca, where it is found at a depth of 180 neew I have recorded it Fromm the Miocene Marl of Ue Yumuri River. Matanzas, Cuba. Genus Valvulina d’Orbigny, 1826. Valvulina sp. Plate I, figure 5. ‘ A single specimen from the well of the Bonheur Development Company at Burns, Wakulla County, at a depth of 325 feet, seems referable to this genus. Chrysalidina ? sp. Plate 1, figures 6 a, b. At 1,262 feet in the well at Marathon, Florida, there is a species, tapering in form, with rounded chambers, and in addition FORAMINIFERA FROM DEEP WELLS 4 ou to the textularian aperture at the base of the chamber, the inner portion of the wall has a number of small perforations. This is in some respects like Chrysalidina gradata d’Orbigny, which he de- scribed from the Cretaceous of Europe. Genus Tritaxia Reuss, 1860. Tritaxia sp. A species with concave sides, rather sharp angles, but the edges rounded, and the whole test rather short, with the sutures indistinct, occurs in several wells with the Orbitolina. It was re- corded from the following: Jacksonville, 702-725 feet; Apopka, 310 feet; and Tiger Bay, 720 feet. Genus Gaudryina d’Orbigny, 1839. Gaudryina flinttt Cushman. Gaudryina subrotundata Flint (not G. subrotundata Schwager, 1866), Ann. Rep. U. S. Nat. Mus., 1897 (1809), p. 287, pl. 33, fig. 1. Gaudryina flintii Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 19tt, p. 63. fig. 102a-c (in text); Bull. 103, U. S. Nat. Mus., 1918, p. 56, pl. 20, fig. 4. There is a single rather small specimen from the Ponce de Leon Well, St. Augustine, Florida, coming from a depth of 200 feet, which seems to represent this species. A specimen from the Culebra formation of the Panama Canal Zone was referred to this species, but it has not been previously recorded in the American Miocene. Gaudryina sp. ? Plate 1, figure 7. There is a species with a triangular early portion, and later very rounded biserial chambers which occurred in the well at Marathon, Florida, at a depth of 1,650 feet. Genus Clavulina d’Orbigny, 1826, Clavulina communis d’Orbigny. Clavulina communis dOrbigny, Ann. Sci. Nat., vol. 7, 1826, p. 268; Foratn. Foss. Bass. Tert. Vienne, 1846, p. 196, pl. 12, figs. 1, 2, Cushman, Bull. 103, U. S. Nat. Mus., 1018, p. 57, pl. 20, fic. 6. 46 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The only records for this species from the Florida well borings are the young specimens from Ponce de Leon Well, St. Augustine, 88 feet, and a more fully developed specimen at 200 feet. Clavulina species. There is a small specimen of this genus not well marked from the well at Fort Myers, Florida, from a depth of 720 feet. y Clavulina ? sp. Plate I, figure 8. There is a large coarse species, with the early portion ap- parently triserial or coiled, and at a decided angle with the later part, which is short and circular in transverse section. These are not well preserved. They come from limestones in which Orbitolina occurs and may not belong to this genus. They occur with Orbitolina in the following Florida wells: Anthony Well, 160 feet; Ponce de Leon Well, St. Augustine, 440 feet; and Tiger Bay Well, 720 feet. Genus Bulimina d’Orbigny, 1826. There are a number of species apparently belonging to Br- limina of the arenaceous group which are characteristic of the Lower Cretaceous, and which occur with Orbitolina. Bulimina sp. Plate 2, figure I. Specimens of an elongate tapering form with close-set oblique chambers occur at 440 feet in the Ponce de Leon Well at St Au- gustine, Florida and at 250 feet in the well at Apopka. Bulimina sp. Plate 2, figure 2. A coarse, thick, arenaceous species occurs at 138 feet in the well of J. Wiggins, at Eustis, Lake County. FORAMINIFERA FROM DEEP WELLS A7 Bulimina sp. Plate 2, figure 3. There is an elongate species with very distinct somewhat re- motely placed chambers which occurs at 160 feet in the well of J Wiggins at Eustis, Lake County. Bulimina sp. Plate 2, figure 4. A species of fusiform shape and concave apertural face, with the rounded aperture near the middle, occurs at 2,310 feet in the / e Sao ~~ well at Marathon. Genus Buliminella Cushman, IQII. eV Buliminella sp. ? ’ Plate 2, figure 5. Specimens from brown limestone at 1,720-feet in the well at Marathon are distinctive and are figured. They are of,the Bul- iminella elegantissima group. Buliminella sp. ? Plate 2, figure 6 a, b. In the deepest part of the well at Marathon there occurred a very low-spired form here figured, which seems like a very short Buliminella of the B. elegantissimia group, but very low. A some- what similar form of much larger size is found in the deeper por- tions of the well at 1,421 feet. Genus Virgulina d’Orbigny, 1826. Virgulina squammosa d'Orbigny. Vingulina squammosa d’Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 267, Mo- deles, No. 64, 1826. Cushman, Bull. 71, U. S. Nat. Mus., pt. 2; 1911, p. 91, fig. 145a, b; Bull. 103, U. S. Nat. Mus., 1918, p. 58, pl. 21, fig. 6. The only material which can be. referred to this species is that from the well of the Okeechobee Ice and Electric Co., Okeechobee, Florida, at depths of 158-175 feet, and 240-245 feet. I have previously recorded it from the Miocene. of the Gatun formation of the Panama Canal Zone. 48 FLORIDA GEOLOGICAL SURVEY—-I13TH ANNUAL REPORT LAGENIDAE Genus Lagena Walker and Boys, 1784. Lagena striata (d’Orbigny). Oolina striata d’Orbigny, Foram. Amer. Merid., 1839, p. 21, pl. 5, fig. 12. Lagena striata Reuss, Sitz. Akad. Wiss. Wien, vol. 46, pt. 1, 1862 (1863), Dh e7h, Wikis}, inal, als Zi lh uray Mle, ya dela sv leheavahy, ING, Won (Clie i- lenger, Zoology, vol. 9, 1884, p. 460, pl. 57, figs. 22, 24. Cushman, Bull. 71, WSS, Net, IMItSY jh B, iO qo eMe}) iollbye eS, ul B The only specimens of the genus were found in the well at Okeechobee, at a depth of 380-403 feet. Another variety of this species was found fossil at Panama. Genus Cristellaria Lamarck, 1812. Cristellaria americana Cushman, var. spinosa Cushman. Cristellaria americana Cushman, var. spinosa Cushman, Bulletin 676, U. S. Geol. Survey, 1918; p. 51, pl. 10, fig. 7. Specimens of this variety were found in two of the lots, 380- 403 feet, and 403-458 feet, frotn the well of the Okeechobee Ice and Electric Company, Okeechobee, Florida. They are very similar to the type specimens described from the Miocene of the Choctawhatchee Marl, one mile south of Red Bay, Florida. Cristellaria rotulata (Lamarck). “Cornu Hammonis seu Nautili”? Plancus. Conch. Min., 1739, p. 13, pl. 1 ike ABUL Lenticulites rotulata Lamarck, Ann. Mus., vol. 5, 1804, p. 188 No. 3; vol. 8, 1806, pl. 62, fig. 11. Cristellaria rotulata d’Orbigny, Mem. Soc. Geol. France, ser. 1, vol. 4, 1840, p. 26, pl. 2, figs. 16-18. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 547, pl. 69, figs. 13a, b. Cushman, Bull. 103, U. S. Nat. Mus., HOUts) qo, Oo, wh 22 river, It. ; ’ The specimens which are from the well at Marathon at a depth of 398 feet are very similar to those that were found in the Miocene of the Gatun formation of the Panama Canal Zone. Genus Polymorphina d’Orbigny, 1826. Polymorphina lactea (Walker and Jacob). Serpula lactea Walker and Jacob, Adam’s Essays on the microscope, 2d ed. p. 634, ple 24, ‘tis. 4, 1708: FORAMINIFERA FROM DEEP WELLS 49 , Polymorphina lactea (Walker and Jacob) Macgillivray. A history of the molluscous animals of the counties of Aberdeen (etc.), p. 320, 1843. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 559, pl. 71, fig. 11. Bagg, Maryland Geol. Survey, Miocene, 1904, p. 477, pl. 133, figs. 5, 6. Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 53, pl. 11, fig. 6. Specimens which may be referred to this species were found in the well at Jacksonville at 510-550 feet; in the Ponce de Leon Well at St. Augustine, at 200 feet, and in the well at Marathon on Key Vaca, at 180 feet. , I have already recorded this species from the Miocene of the Choctawhatchee Marl, one mile south of Red Bay, Florida. It is also known from the Miocene and Eocene of Maryland and New Jersey. Polymorphina elegantissima Parker and Jones. Polymorphina elegantissima Parker and Jones, Philos, Trans., vol. 155, 1865, p. 438. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 4884, p. 566, pl. 72, figs. 12-15. Bagg, Maryland Geol. Survey, Miocene, 1904, p. 476, pl. 133, fig. 3. Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 54. A single specimen of this species is from the Ponce de Leon Well at St. Augustine, Florida, at a depth of 170 feet. Bagg has recorded and figured this species from the Miocene of the Calvert formation of Chesapeake Beach, Maryland. GLOBIGERINIDAE Genus Globigerina d’Orbigny, 1826. Globigerina bulloides d’Orbigny. Globigerina bulloides dOrbigny, Ann. Sci. Nat., vol. 7, 1826, p. 277, No., 1; Modeles, 1826, No. 17, and No. 76; in Barker, Webb, and Berthelot, Hist. Nat. Isles Canaries, 1839, pt. 2, Foraminiferes, p. 132, pl. 2, figs. 1-3, 28. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9,. 1884, p. 503, pl. 77; pl. 79, figs. 3-7. Cushman, Bull. 676, U. S. Geol. Sufvey, 10918, pp. 12, 56, pl. 3, fig. 2; Plo te hissed or Bull. | 103, U. S: Nat. Mus., 1918, p. 64; Publ. 2o1, Carnegie Institution of Washington, 1919, p. 38. A few specimens of this common species were obtained from the well of the Okeechobee Ice and Electric Company, at Okeecho- bee, Florida, at a depth of 380-403 feet, and from the Well at Marathon on Key Vaca, at depths of 180 to 398 feet. The species is also known from the American Miocene of Pan- ama; the Coastal Plain of Florida and Virginia; Yumuri River, 50 FLORIDA GEOLOGICAL SURVEY—I1I3TH ANNUAL REPORT Mantanzas, Cuba; Cercado de Mao, Santo Domingo, and Bow- den, Jamaica. Gents Orbulina d’Orbigny, 1826. Orbulina universa d’Orbigny. Orbulina universa d’Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, _ 1830, “Foraminiferes,” p. 3, pl. 1, fig. 1. H. B Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 608, pl. 78; pl. 81, figs. 8-26; pl. 82, figs. 1-3. Cush- man, Buall676)° Wes: Geol. Survey; 1018,-p. 12; pl.>3) fis. 35° Bull 203.90 Nat. Mus., 1918, p. 67; Publ. 291, Carnegie Institution of Washington, 1919, p. 40. The only record from the well samples examined is 380-403 feet, ‘at Okeechobee. The species is known from the Miocene of the Gatun forma- tion of the Panama Canal Zone; from Rio Gurabo, and Cercada de Mao, Santo Domingo, and from the gorge of the Yumuri River, Matanzas, Cuba. ROTALITDAE Genus Discorbis Lamarck, 1804. Discorbis bertheloti (d’Orbigny). Rosalina bertheloti d’Orbigny, in Barker, Webb, and Berthelot, Hist. Nat. Iles Canaries, pt. 2, 1839, ‘“Foraminiferes,” p. 135 pl. 1, figs. 28-30. Discorbis bertheloti (d’Orbigny) Cushman, U. S. Nat. Mus., Bull. 71, pt. G, 1915, p: 20;%pl.-7; fig: 3; fies 23m. text-< Bulls 676;..U: “S. (Geol. Sumney; 1918, p. 58, pl. 15, figs. 1-3. Discorbina bertheloti (d’Orbigny) H. B. Brady, Linnaean Soc. London, Trans., vol. 24, 1864, p. 469, pl. 48, fig. 10} Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 650, p.l 89, figs. I0-12. ' This is the only species of Discorbis found in the well sam- ples. It is from the well of the Okeechobee Ice and Electric Company, Okeechobee, Florida, at a depth of 41-56 feet. I have recorded this species from the Miocene of Virginia and South Carolina, and also from the Choctawhatchee Marl, one mile south of Red Bay, Florida. Genus Truncatulina d’Orbigny, 1820. Truncatulina refulgens (Montfort). Cibicides refulgens Montfort, Conch. Syst., vol. 1, 1808, p. 122. Truncatulina refulgens (Montfort) d’Orbigny, Ann. Sci. Nat., vol. 7, 1826, p..279, pl. 13, figs. 8-11; Modeles, 1826, No. 77. H. B. Brady, Rep. Voy. Chal- FORAMINIFERA FROM DEEP WELLS 51 lenger, Zoology, vol. 9, 1884, p. 659, pl. 92, figs. 7-9. Cushman. Bull. 676, U. S. Geol. Survey, 1918, p. 61, pl. 18, fig. 3. A single specimen from the Ponce de Leon Well at St. Au- gustine is the only record for the species in the well samples. I have also had it from the Miocene in the Choctawhatchee Marl from Coes Mill, Florida. — Truncatulina americana Cushman, Truncatulina americana Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. Gah mle 20h. Tinsl12, gs) Dl. QT}. fiey 177 Bull, 102," U. ‘S. Nat; Mus:, 1018, p. 68, Dip 23. f18S, '2a-c This species seems to be a common one in the Miocene and Oligocene of America. It was originally described from the Mio- cene of the Choctawhatchee Marl at Coes Mill, Florida, from the Duplin Marl at Mayesville, S. C., and from Wilmington, N. C. It is also known from the upper part of the Culebra formation of the Panama Canal Zone. In the borings from the Florida wells it has occurred as fol- lows: Ponce de Leon Well, St. Augustine, at depths of 88 and 200 feet; well at Fort Myers, 300 feet; well of Okeechobee Ice and Electric Company, Okeechobee, Florida, 41-56 feet; 87-94 feet; 240-245 feet; 245-276 feet and 403-458 feet; well at Marathon on ‘Key Vaca, 180, 305 and 308 feet. Truncatulina pygmaea Hantken. Truncatulina. pygmaea Hantken, Mitth. Jahrb. ung. geol. Anstalt, vol. 4, 1875, p. 78, pl. 10, fig. 8. Cushman, Bull. 103, U. S. Nat. Mus., 1918, p. 68, pl. 23, figs. 3a-c. Truncatulina pygmaea H, B. Brady, Rep. Voy. Piaieeeee. Zoology, vol. 9, 1884, p. 666, pl. 95, figs. 9, Io. Specimens occurred in the material from two wells, that from Fort Myers, at a depth of 360 feet, and from the well at Marathon on Key Vaca, at 308 feet.. It has been recorded from the Miocene of the Gatun formation and ia Oligocene of the Culebra formation of the Panama Canal Zone, Truncatulina basiloba Cushman, ey hae basiloba Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 64, pl. 21, fig. 2. 52 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT This species was originally described from the Miocene of South Carolina, although the exact locality was not known. It is therefore interesting to again find it in typical form from the Well at Okeechobee, at a depth of 41-56 feet. This is one of several species with the basal portions of the chambers variously modified, which occur in the Miocene and Olig- ocene of the Coastal Plain. t Truncatulina sp. Plate 3, figtires I a, D. There is a large species of Truncatulina which occurs in the Bushnell Well at depths of 1,067 and 1,095 feet. Some. of the specimens are well preserved and show a raised ridge along the line of coiling and raised borders to the chambers, the surface be- tween punctuate. The ventral surface is strongly convex and pe- culiarly marked. Genus Pulvinulina Parker and Jones, 1862. Pulvinulina umbonata (Reuss). Rotalina umbonata Reuss, Zeitschr. deutsch. geol. Gesellsch., vol. 3, 1851, p. 75; ple Sy figs. 35a-c. . Pujvinulina umbonata Reuss, Denkschr, Akad. Wiss. Wien, vol. 25, 1866, p. 206. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 695, pl. 105, figs. 2a-c. A single specimen which resembles this species in its general characters was found in material from a depth of 200 feet in the Ponce de Leon Well at St. Augustine, Florida. Pulvinulina sp. Pulvinulina hauertt H. B. Brady (not P. hauerii d’Orbigny) Rep. Voy. Challenger, Zoology, vol. 9, 1884, pl. 106, fig. 7a-c. There is a single specimen in the Jacksonville Well which is close to the figure quoted above, which is, however, certainly not Pulvinulina hauerii dOrbigny. This particular form is at present found in the Philippine and South Pacific regions and is one of a considerable number of species which occur in the Oligocene of America and are now living in the same or closely related form in the Indo Pacific. FORAMINIFERA FROM DEEP WELLS 53 Pulvinulina ? sp. Plate 2, figures 7 a, DB. Associated with the conical Orbitolina in three wells there is a species which may be assigned to Pulvinulina. It is of small size, the dorsal side strongly convex, the ventral side less so, and when worn shows a peculiar series of openings about the umbili- cal area. It is found in material from the following: New City Well at Jacksonville, at 820-845 feet; Ponce de Leon Well at St. Au- eustine at 785 feet; and City Well at Apopka, Orange County, at II5 feet. This is another one of the species which is characteristic of the fauna of the upper Orbitolina Zone. Genus Gypsina Carter, 1877. Gypsina globulus (Reuss). Ceriopora globulus Reuss, Haidinger’s Nat. Abh., vol. 2, 1847, p. 33, pl. Bye kias Fe Gypsina globulus H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 717, pl. ror, fig. 8. Cushman, Publ. 291, Carnegie Institution of Washington, I910, p. 44, pl. 4, fig. 7. : Large specimens which may be referred to this species are from the well at Marathon, on Key Vaca, at 598 feet. These are similar to those which were found at Anguilla, Leeward Islands, where, as in the Marathon Well, they occurred in company with Orbitolites. Smaller specimens of the form which is characteristic of the Ocala limestone were found in the Jacksonville Well, at 680-702 feet, and occasionally below. These all probably came from the level of 510-550 feet where the Ocala evidently is entered and from which point downward there is no casing. Similar speci- mens also occur in the well of the Bonheur Development Com- pany at Burns, Wakulla County, at a depth of 50 feet, and in the well of the Compagnie Generale des Phos. de la Floride, at An- thony, Marion County, also at 50 feet. This latter well is known to start in the Ocala limestone. Other species from Burns con- firm the occurrence of the Ocala at 50 feet as indicated by the Gypsina. 54 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The species of Gypsina referred to G. globulus in the Coastal Plain and West Indian region need careful study to discriminate between the different forms found in different horizons. Genus Rotalia Lamarck, 1804. Rotalia beccari (Linnaeus). Nautilus beccarii Linnaeus, Syst. Nat., 12th Ed., 1767, p. 1162. Rotalia (Turbinulina) beccarii d’Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 275, No. 40; Modeles, 1826, No. 74. Rotalia beccarii Parker and Jones, Philos. Trans., vol. 155, 1865, p. 388, pl. 16, figs. 29, 30. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 704, pl. 107, figs, 2, 3. Cushman, Bull. 676, U. S. Geol. Survey, 1918, pp. 18, 662 pl.25, te. 1, pls6, fig. 1; pl. 23, :cie. 3:09) 24, fies. a, 25 ipl. 25; die) as Specimens of the forms figured from the Miocene of the Coast- al Plain were found in material from the well at Fort Myers, at a depth of 300 feet, and the well at Okeechobee, at a depth of 41-56 rect. This has been recorded from the Miocene of Florida in the Choctawhatchee Marl of Coes Mill, and Jackson Bluff, as well as from the Miocene and Pliocene of several other states. Rotalia armata d’Orbigny. Rotalia armata d@’Orbigny, Ann. Sci, Nat., vol. 7, 1826, p. 273, No. 22; Modeles, 1826, No. 70. ; Rotalina armata Terquem, Mem. Soc. Geol. France, ser. 3, vol. 2, Mem. TLE. 1882, p67, pl. 5. (13). tgs. 14, 15; In a single well, that of the Bonheur Development Company at Burns, Wakulla County, numerous specimens occur at 180 feet, and scattered below as casts which are very close to this species of d’Orbigny, which seems characteristic of the Eocene of the Paris Basin at some horizons. ; The specimens are in such numbers in this well that it seems as though they may be later discovered somewhere in surface deposits of this same age in the Gulf region. Occurring as it does below the horizon marked by character- istic species of the Ocala, it should be looked for elsewhere in a similar stratigraphical position. a ee ed Vee - i as a FORAMINIFERA FROM DEEP WELLS oi ul J Rotalia sp. In the well at Marathon, on Key Vaca, a species of Rotalia oc- curs in some numbers at 1,273 feet. It is ‘unlike those found else- where in the well samples, but is not well preserved as to details of the surface characters. Rotalia ? sp. In two wells, the New City Well at Jacksonville, at a depth of 680-702 feet, and that of J. Wiggins at Eustis, Lake County, at a depth of 138 feet, there is a large rotaliform species which seems more or less involute on both faces. The stttures are marked by raised lines. The peripheral margin is angled, the dorsal surface just within the periphery slightly concave. NUMMULITIDAE * Genus Nonionina d’Orbigny, 1826. Noniona scapha (Fichtel and Moll). Nautilus scapha Fichtel and Moll. Test. Micr., 1708, p. 105, pl. 19, figs. d-f. Nonionina*scapha Parker and Jones, Ann. Mag: Nat. Hist., ser. 3, vol. 5, 1860, p. 102, No. 4. H. B, Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 730, pl. 109, figs. 14, 15 and 16.? Bagg, Bull, Amer. Pal., vol. 2, No. 10, 1898, p. 41 (335), pl. 3 (23), figs. 4a, b; Maryland Geol. Survey, Miocene, 1904, p. 460, pl. 131, figs. 1-3. Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 68, pl. 25, fig. 2; pl. 26, figs. 2, 3; Bull. 103, U. S. Nat. Mus., 1918, p. 73, pl. 25, figs. 6a, b. In two wells, specimens evidently this species were obtained. _ These are 87-94 feet in the well at Okeechobee, and 180 feet in the well at Marathon on Key Vaca. This species is known from the Miocene of the Choctawhatchee - Marl of Florida, and from the Miocene of Maryland, Virginia, and South Carolina. It occurs also in the Gatun formation of the Panama Canal Zone. Nonionina depressula (Walker and Jacob.) Nautilus depressulus Walker and Jacob, in Adam’s Essays on the Micro- scope, Kanmacher’s Ed., 1798, p. 641, pl. 14, fig. 33. 56 FLORIDA GEOLOGICAL SURVEY I3TH ANNUAL REPORT Nonionina depressula Parker and Jones, Ann. Mag. Nat. Hist., ser. 3, vol. 4, 1859, pp. 339, 341. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 725, pl. 109,. figs. 6, 7. Cushman, Bull. 676, U. S. Geol. Survey, IQ&, pp. 10, 67," pl. 1, fieGe, pl. 26; fig’ 12 -Bull. 103, U--S, Nat. Mus, 1018 p..72, pi. 25; figs. 502° 0: A single specimen which may be referred to this species was obtained in the well sample from 88 feet in the Ponce de Leon Well at St. Augustine. It occurs in the Miocene of the Gatun formation of the Panama Canal Zone and it has been recorded from the Miocene of Alabama and Virginia. | *e Nonionina sp. Plate 3, figures 2 a, b. At a depth of 380-403 feet in the well at Okeechobee, there are numerous specimens of a species of Nonionina which are very uni- form in their characters. Genus Polystomella Lamarck, 1822. Polystomella crispa (Linnaeus). “Cornu Hammonis orbiculatum’” Plancus, Conch. Min., 1739, p. 10, pl. His pate 2 : Nautilus crispus Linnaeus, Syst. Natebdh 125170725 paa moos Polystomella crispa Lamarck, Anim, sans. Vert., vol. 7, 1822, p. 625, No. 1. d’Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 125, pl. 6, figs. 9-14. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 736, pl. 110, figs. 6, 7. Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 60, pl. 27, figs. 1, 4, 53 Bulls 1033s Se NateNids:, TOLom ph 70% plies shies: ene: This species in Recent Seas is characteristic of tropical and subtropical waters. In the Miocene of America it is known, es- pecially from the Choctawhatchee Marl of Florida, the Duplin Marl of North and South Carolina, and from the Gatun forma- tion of the Panama Canal Zone. In the Florida well samples it has occurred twice, from 41-56 feet in the well at Okeechobee, and from 78 feet in the well at Mar- athon, gn Key Vaca. | Polystomella craticulata (Fichtel and Moll). Nautilus craticulatus Fichtel and Moll. Test. Micr., 1798, p. 51, pl. 5, figs. h-k. FORAMINIFERA FROM DEEP WELLS 57 Polystomella craticulata d’Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 284, No, 3. W. B. Carpenter, Introd. Foram., 1862, p. 279, pl. 16, figs. 1, 2, H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 730, pl. 110, figs. 16, 17. Cushman, Bull. 103, U. S. Nat. Mus., 1918, p. 77, pl. 27, figs. 3a, b. In its fully developed form this species-is characteristic of tropical shallow waters. : It has been recorded from the Culcbra formation of the Pana- ma Canal Zone in a somewhat different form from the recent species of the Indo-Pacific. This same form is.apparently present in the Florida wells, specimens very similar having been found in the Ponce de Leon Well at St. Augustine from 88 feet, and 680 feet in the well at Fort Myers. Polystomella striato-punctata (Fichtel and Moll). Nautilus striato-punctatus Fichtel and Moll. Test. Micr., 1798, p. 61, pl. g, figs. a-c. Polystomella striato-punctata Parker and Jones, Ann. Mag. Nat. Hist., ser. 3, vol. 5, 1860, p. 103, No. 6. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 733, pl. 109, figs. 22, 23. Cushman, Bull. 676, U. S. Geol. Sur- vey, 1918, pp. 10,60, pl. 8, fig. 4; pl. 26, fig. 4; ply 27, fig: 2;. Bull’ 103, U.S. Nat. Mus., 1918, p. 74, pl. 26, figs. 3a, b; 4a, b; Publ. 291, Carnegie Institu- tion of Washington, I919, p. 49. To this species have been assigned most forms of Polystomella which have a rounded periphery and short retral processes. In the American Miocene it is known from numerous states of the Coast- al Plain, from the Panama Canal Zone, and from Santo Domingo. The only well record is that from 41-56 feet in the well of the Okeechobee Ice and Electric Company at Okeechobee. Polystomella sp. ? At 880 feet in the City Well at Fort Myers, Lee County, there occur numerous specimens of Polystomella which are almost all casts and not at all well preserved. These, for the most part, have rather short retral processes but have a large number of cham- bers. Attention is called to them for possible later comparisons with other localities. 58 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT Genus Amphistegina d’Orbigny, 1826. Amphistegina. lessont d’Orbigny. Amphistegina lessonii d’Orbigny, Ann, Sci. Nat., vol. 7, 1826, p. 304, No. 3, pl. 17, figs. 1-4, Modeles, 1826, No. 98. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 740, pl. 111, figs. 1-7. Cushman, Bull. 676, U. S. Geol. Survey, 1918, pp. 20, 70,’pl. 4, fig. 3; pl. 26, fig. 5; pl. 27, fig. 3; pl. 28, fig. 1; Bull. 103, U. S. Nat. Mus., 1918, p. 77; Publ. 291, Carnegie Institution of Washington, 1919, p. 50, pl. 7, fig. 7. There are various forms, varieties, or species of Amphistegina in the American Tertiary which should be critically studied as from the fragmentary evidence at hand they seem very distinct at dif- ferent horizons. As Amphistegina is a tropical genus the occurrence in the wells would naturally be expected to be confined to those of the southern part of Flerida. This is true of the actual records, it having oc- curred as follows: City Well at Fort Myers at 300 feet; well of the Okeechobee Ice and Electric Company at Okeechobee at 56-62 feet; and in the well of the Florida East Coast Railway at Mara- thon on Key Vaca, at 180 feet. It is know from the Miocene of the Duplin Marl of South Caro- lina, the Choctawhatchee Marl of Florida, and the Miocene of Santo Domingo and Bowden, Jamaica, and in the upper Oligo- cene of the Panama Canal Zone. Genus Asterigerina d’Orbigny, 1839. Asterigerina angulata Cushman. Asterigerina angulata Cushman, Publ. 291, Carnegie Institution of Wash- ington, IOI; p. 45, pl. 13, fig. 4. Numerous specimens from a depth of 786 feet in the well at Marathon, Key Waca, are evidently this species, described from the Miocene of Santo Domingo at Rio Cana, and Cercado de Mao. Genus Nummulites Lamarck, 1801. Nummutlites sp. Numerous specimens of Nummulites occur in a number of the wells, usually just below the Ocala limestone where that formation is represented. The records in the various Florida wells are as follows: a fragment probably Nummulites from 400-470 feet in CC FORAMINIFERA FROM DEEP WELLS 59 the well at Panama City; especjally at 150 feet and at lower depths probably derived from this level in the well of the Bonheur De- velopment Company at Burns, Wakulla County; at 550 feet and below in the New City Well at Jacksonville, Duval County; abun- dant at 50 feet and scattering below in the well of the Compagnie Generale des Phos. de la Floride, at Anthony, Marion County; in the upper portions, probably above 138 feet in the well of J. Wig- gins at) Eustis, Lake County; at 410 feet especially and scattered below in Well No. 3 of the Palmetto Phosphate Company near Pit No. 1, about 2 3-4 miles northwest of Tiger Bay. Genus Operculina d’Orbigny, 1826. Operculina sp. The only specimen that may be referred to this genus -is from the well at Marathon on Key Vaca, coming from a depth of 589 feet, but this is broken and not specifically identifiable. Where Operculina was recorded in the earlier paper on the well samples, (12th Annual Report, Florida Geological Survey, 1919, pp. 77-103) a closer study has shown them to be Heterostegina ocalana, Genus Heterostegina d’Orbigny, 1826. Heterostegina ocalana Cushman. Occurring with the various species of Lepidocyclina and also characteristic of the Ocala limestone this species confirms the age of the Ocala in the well borings. It occurred in recognizable form as follows: well of L. E. Morrow, Sanford, Seminole County, 113, feet; well of H. Bradford, Cocoa, Brevard County, 190 feet; and Tiger Bay at a depth of 360-400 feet. It is char- acteristic of the Ocala, especially in north-central Florida and is also found in the Ocala of Georgia. Genus Heterosteginoides Cushman, 1918. Heterosteginoides cf. panamensis Cushman. _Heterosteginoides panamensis Cushman, Bull. 103, U. S. Nat. Mus., 1918. p. 97, pl. 43, figs. 1-8. This species is common in the Culebra formation of the Pan- ama Canal Zone, and a related species has been described from Crocus Bay, Anguilla, Leeward Islands. 60 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The only well from which specipnens of this genus were found is that at Marathon on Key Vaca, where they occurred at a depth of 852 feet. It would then seem that the well at this depth en- tered or was in Upper Oligocene strata. This genus may prove to be a synonym of Miogypsina which is also characteristic of the Upper Oligocene elsewhere. Genus Lepidocyclina Gumbel, 1868. Lepidocyclina ocalana Cushman. This species which is typical of the Ocala limestone of Flor- ida is found in recognizable form in the several wells: Jackson- ville, first appearing at 510-550 feet, and fragments occur from this point downward, probably all having ‘their source at this same depth as the well is not cased below this level. In the well of L. E. Morrow at Sanford, Seminole County, at 113 feet, spec- imens of L. ocalana occur in fragmentary form with other Ocala species. At Cocoa, Brevard County, from the well of H. Brad- ford, the species occurs in the only sample from 190 feet. In Ti- ger Bay well at 360-400 feet abundant specimens of Lepidocyc- lina, including “L. ocalana, were found. The Ocala limestone is therefore definitely placed by this and associated species. Lepidocyclina floridana Cushman. This*species occurs with L. ocalana in the following wells: L. E. Morrow, Sanford, Seminole County, at 113 feet; H. Brad- ford, Cocoa, Brevard County, 190 feet, and at Tiger Bay, 360- 400 feet and at various points below, evidently originating from this: level. Lepidocyclina pseudocarinata Cushman. There are specimens of this species from two of the wells with the preceding: Cocoa, 190 feet, and at Tiger Bay, 360-400 feet. Lepidocyclina pseudomarginata Cushman. Specimens which may be this species were obtained in the Jacksonville Well at 510-550 feet, and a few fragments below. More definite specimens were in the material from the well at Tiger Bay, at 360-400 feet. FORAMINIFERA FROM DEEP WELLS 61 Lepidocyclina sp. ? Fragments of Lepidocyclina which are not identifiable were obtained at numerous wells indicated in the previous report (12th Annual Report, 1919). These are too small and too poorly pre- served to be of more than generic value, FAMILY MILIOLIDAE. Genus Quinqueloculina d’Orbigny, 1826. Quinqueloculina cf. poeyana d’Orbigny. Ouinqueloculina poeyana d’Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, “Foraminiferes,” 1839, p. 191, pl. 11, figs. 25-27. Cushman, Bull. 676, U. S. Geol. Survey, 1918, p. 24, pl. 6, fig. 2. A specimen from 41-56 feet in the well of the Okeechobee Ice and Electric Company at Okeechobee, has a sculpture consist- ing of longitudinal costae, somewhat similar to that figured in the references given above. The specimen from the well.is, how- ever, somewhat broader and shorter, and may not belong to this species. Specimens with similar sculpture but of different shape more like Q. pulchella @Orbigny, occur in the well at Marathon on Key Vaca, at a depth of 1,140 feet. By their appearance they may have come from the sides of the well far above this point as they are excellently preserved and do not look like other material from this depth. : Quinqueloculina sp. ~ Plate 3, figure 3. There is a fairly large species found in several of the wells which is very peculiar in its sculpture. The exterior is either rough or covered with a secondary granular coating, Where this is worn through, a peculiar sculpture is seen, consisting of short longitudinal elongate pits filled with fine granular material of the surface. Specimens are not well enough preserved to show the apertural characters. The species occurs with the conical form of Orbitolina in the following wells: New City Well at Jacksonville, at a~depth of 845-900 feet; Ponce de Leon Well at St. Augustine, at 440 feet; 62 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT ‘City Well at Apopka, Orange County, at 115 feet; and well at Marathon, on Key Vaca at 1,720 feet. Quinqueloculina sp. Specimens of Quinqueloculina with a rough surface are found at Apopka at 115-feet and in the well at Anthony ‘at 375 feet. These are not well enough preserved to be identified specifically. Genus Massilina Schlumberger, 1893. Massilina sp. Plate 3, figures 4, 5. In the material from the well at Apopka there are specimens of this genus rather poorly characterized as far as external char- acters are shown. It is found with the conical species of Orbi- tolina. Genus Triloculina d’Orbigny, 1826. Triloculina sp. A single specimen with traces of longitudinal costae was found in material from 138 feet in the well of J.Wiggins at Eus- tis, Lake County. Triloculina sp. At a depth of 720 feet in the well at Fort Myers several poorly preserved specimens of Triloculina were obtained. The exterior is rough and irregular and no characters are preserved which enable them to be specificaily identified with certainty. Genus Biloculina d’Orbigny, 1826. Biloculina sp. There are specimens represented mainly by internal .casts from the well at Jacksonville at 820-845 feet, and from the Ponce de Leon Well at St. Augustine, at 440 feet, in both localities oc- curring with the conical form of Orbitolina. Genus Peneroplis Montfort, 1808. Peneroplis arietinus (Batsch). Nautilus (Lituus) arietinus Batsch, Conch Seesandes, 1791, p. 4, pl. 6, figs. 15d-f. FORAMINIFERA FROM DEEP WELLS 63 Peneroplis arietinus H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 204, pl. 13, figs. 18, 19, 22. Heron-Allen and Earland, Trans. Zool. Soc., London vol. 20, 1915, p. 602, There are numerous specimens as this species from a depth of 720 feet in the well at Fort Myers. They are somewhat changed in character, showing traces of replacement by calcite, which has somewhat altered the external characters, but the form is very characteristic. Peneroplis discoideus Flint. Peneroplis pertusus (Forskal), var. discoideus Flint, Ann. Rep. U. S. Nat. Mus., 1897 (1899), p. 304, pl. 49, figs. 1, 2. Cushman, Publ. 291, Carnegie In- stitution of Washington, I919, p. 60. This should take its rank with the other species of Peneroplis. So far as known it is limited to the West Indian region, being de- scribed by Flint from the shallow water of Key West Harbor, Florida. I have recorded it from the Miocene of Bluff 3, Cercado de Mao; Santo Domingo. It occurred in material at 1,140 feet in the well at Mara- thon on Key Vaca, but the tests.are unlike’most of the others from this level and apparently came oefeavel by from some distance above. - Genus Orbitolites Lamarck, 1801: Orbitolites americana Cushman. Orbitolites americana Cushman, Bull. 103, U. S. Nat. Mus., 1918, p. 99, pl. 43, figs. 12-14;. pl. 44, figs. 1, 2; pl. 45. There are fragments of Orbitolites from the well at Mara- thon on Key Vaca at a depth of 589 feet which in the general characters of the interior very closely resemble the species which I have described from the Emperador Limestone and the Culebra formation of the Panama Canal Zone. Orbitolites is characteristic of the American Upper Oligocene in the Tampa formation of Florida and the Anguilla formation of Anguilla and Cuba. Therefore this level of the Marathon Well should be, Upper Oligocene. 64 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT Genus Alveolina d’Orbigny, 1826. Alveolina ? sp. Platé 3, figures 6 a, D. In the well at Bushnell at 2,320 and 2,380 feet there are spec- ' imens which resemble Alveolina but instead of being fusiform are compressed in the plane of the axis, They resemble in a general way the Orbiculina rotella of dOrbigny (Foram. Foss. Bass. Tere Vienne, 1620, pli. 7, tgs. 13, 14): 4 EXPLANATION OF PLAT Est. Figure 1. Haplophragmium sp. X35. 1,027 feet, Bushnell Well. Figure 2. Haplophragmium sp. X35. 1,720 feet, Marathon Well. Figure 3. Haplophragmium sp. X35. 160 feet, Anthony Well. Figure 4. Haplophragmium sp. X35. 440 feet, St. Augustine Well. Figure 5. Valvulina sp. X35. 325 feet, Well at Burns. Figure 6. Chrysalidina ? sp. X35. 1,262 feet, Marathon Well. a, side view; b, apertural view. : Figure 7. Gaudryina sp. X35. 1,650 feet, Marathon Well. Figure 8. Clavulina sp. X30. FORAMINIFERA FROM DEEP WELLS PLATE 1. 66 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT Figure I. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. EXPLANATION OF PLATE 2 Bulimina ? sp. X35. 440 feet, St. Augustine Well. Bulimina sp. X35. 138 feet, Eustis Well. Bulimina sp. X35. 160 feet, Eustis Well. ‘ Bulimina sp. X50. 2,310 feet, Marathon Well. Buliminella sp. X35. 1,720 feet, Marathon Well. Buliminella ? sp. X50. 2,220 feet, Marathon Well, a, ventral view; b, dorsal view. Pulvinulina ? sp. X50. 820-845 feet, Jacksonville Well. a, dorsal view; b, ventral view. FORAMINIFERA FROM DEEP WELLS 68 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT EXPLANATION OF PLATE 3 Figure 1. Truncatulina sp. X30. 1,067 feet, Bushnell Well. a, dorsal view; b, ventral view. Figure 2. Nontonina sp. X75. 380-403 feet, Okeechobee Well. a, side view; b, front view. Figure 3. Quinqueloculina sp. X35. 1,720 feet, Marathon Well. Figure 4, 5. Massilina sp. X50. 115 feet, Apopka Well. Figure 6. Alveolina ? sp. X35. 2,320 feet, Bushnell Well. a, side view; )D, edge view. . FORAMINIFERA FROM DEEP WELLS 59 ~ . INDEX, 1OcSPECIES OF -FORAMINIFER, (Synonyms and extra-limital species in italics.) A Alveolina sp., 64, 68, 60. Amphistegina, 33; lessonii, 37, 58. Asterigerina angulata, 37, 58. B Biloculina sp., 62. Bulimina sp., 40, 46, 47, 66, 67. Buliminella elegantissima, 47; 66, 67. Sp., 47, C Ceriopora globulus, 53. Chrysalidina aradata, 45; sp., 44, 64, 65. Cibicides refulgens, 50 Clavulina communis, 37, 45; sp., 40, 46, 64, 65. Conulites americana, 39-41. Cristellaria americana var., 37, 48; ro- tulata 37, 48; spinosa, 37. D Discorbina bertheloti, 50. Discorbis bertheloti, 37, 50. G Gaudryina flintii, 37, 45; subrotundata, 45; Sp.,.45, 64, 65. Globigerina bulloides, 37, 49. Gypsina globulus, 38, 53, 54. H Haplophragmium sp., 40, 41, 64, 65. Heterostegina ocalana, 30, 40, 59. Heterosteginoides, 30; panamensis, 59. L Lagena striata, 48. Lenticulites rotulata, 48. Lepidocyclina, 38-40, 59; floridana, oca- lana, pseudocarinata, pseudomargin- data, 3040); GOs sp; OL: Lituus, 62 M Massilina sp., 62, 68, 60. Miogypsina, 60. N Nautilus arietinus, 62; beccarit, 54; craticulatus, crispus, 56; depressu- Nonionina, 33; depressula, 37, 55, 56; scapha, 37, 553; sp., 56, 68, 69. Nummulites, 39, 40, 58. O Oolina striata, 48. Operculina, 39, 59. Orbiculina rotella, 64. Orbitolina, 40, 42, 44-46, 53, 61, 62; tex- ana, 42. Orbitolites, 38, 53, 63; americana, 63. Orbulina universa, 37, 50. Orthophragmina, 309. lg Peneroplis arietinus, 62, 63; discoideus, pertusus, 63. Polymorphina elegantissima, lactea, 37, 48, 40. Polystomella, 33; craticulata, 37, 56, 57; crispa, 37, 50; striato-punctata, 37, 57; SD.» 57. : Pulvinulina hauerti, umbonata, 52; sp., 40, 52, 53, 66, 67. Q Quinqueloculina poeyana, pulchella, 61; Sp,. 40, 61, 62, 68, 69. R Rosalina bertheloti, 50. Rotalia armata, 39, 40, 54; beccarii, 37, 54; Sp. 55. Rotalina armata, 54; umbonata, 52. S 37; 49; Serpula lactea, 48. ms Textularia abbreviata, 37, 42; aggluti- mans, gramen, 37, 43; panamensis, 37, 44; Sagittula fistulosa, 43; sp., 40, 44. Triloculina sp., 62. Tritaxia sp., 40, 45. Truncatulina americana, basiloba, pyg- maea, 37, 51; refulgens, 37, 50; sp., 52, 68, 60. ; Turbimulina, 54. Vv Valvulina sp., 44, 64, 65. Verneuilina spinulosa, 37, 44. lus, scapha, 553 striato-punctatus, 57.! Virgulina squammosa, 37, 47. 70 GEOGRAPHY OF CENTRAL FLORIDA ROLAND M. HARPER TABLE OF CONTENTS ip EO Gt chlo mn mar eee eee a rae ee ee ee eee eh @Plan of description and sources of information —------_-=.------ Selectiontio meullustrattons i Gtoy ssa see ee a es ae a Be aomtoiial en chiptvo is: we mes tee eee Mone da ee TP VESE COASE JS AHS ia eke ee he eRe go we CY 5 (Ciailhi sinevanvanvoyelter aessalonar (CIty oleae, 1) eee ee ee ee pend cll ema ll onicl an etl crt wii Cl Sige cree eae ee ei eee PPEIne Sim Lectonm bable. 2 )hpsee saat eee ens eee be Es See eS Middlemhlonida shammocke belie lable es) aus =e ae Milernandon hammock belts 1(laller A) ween a , 1saiswillere delee. inser (Ale oie: i) eas Se ee . Peninsular flatwoods, western division (Table 6) ----------- . Peninsular flatwogds;seastern division (Table 7) ----+--_-- TOs Hast .coast Stiip/MEMinRe)) 1 oo2 = Soto oo Sete ens (Generalesteattr es ss2= 2 = ke ee a ee BS ee A ee SSUBALEL Teg yas a eS gs ee Se a ee HeotamierSeOlOsy : 28 se arent a Tee teen we eee Oe, OPO GAIA eo ee LE SE OPE he Sp Ae 9 AB ls oN Eividrographiy 1 Ot. edraimace my meee ee et au wet ie he eee ae wS/ SEH GOP ce RE A a ae ee ENT,” aS ge RN rR PITS en PT MARGOT) Wie y, SOUS yah ae os a nos Rete es et Wrathipra soils <5 0 5 rank Se ALT eds a ee ee Oe eee Mg EUG a i et eats SR ea ME, CRO Soe ARREARS SOOT, e INTISCETIA EOS sSOilig. 25). ces eerie eee Nee ee LE Mechanical “analysessCRablesivo= bay). ee cree eee ak eae Chemical analyses.a( bables. 15-1 ahaa Sateen Gitgiatee( bable tg irs 2 Pak. poeta ee pave Se BNO S 2 Senta Vegetation : ___.____ eae SP ec aS ee Aah ik es ee Nl Plices with-in verctanione so ca? Set ng i ee OT ELeGbaceguss vewetationl eo cet = 9 to eS Aa ie a ba SSMU me Vem el Aba Mtoe a Nase ee eee eee a ug LS SanaliEreess Grr Tice tse eee ee ee pe ewe Dalketrees con -fotestee nena staat oe oa ee eee teens eet ds je Census of timber trees: s( bable.220), 2 222 eso ON Utilization “of *native-plantsu@lables 21) 2.22 J) 71 ON Am BW b Ko) Page. 75- 83 77- 81 81-83 84-153 84- 87 87- 93 93- 94 95-103 104-110 IIt-118 IIQ-129 130-130 136-143 143-153 154-287 TSR USY, 157-16¢ 160-165 166-170 170-104 17 IWS 175-178 178-179 179-180" 180-186 186-194 194-197 197-222 199 199-204 204-205 205-206 206-217 218-219 219-222 7/2 FLORIDA GEOLOGICAL SURVEY—_I3TH ANNUAL REPORT General Features—Continued. Page. Wild sanimals# or 1908-1910, 1914, 1915 and 1920. ‘The importance of vegetation as an indicator of soil conditions is probably more generally recog- nized in Florida than in any other part of the United States; but in order to make satisfactory correlations between vegetation and soils it is necessary not merely to pick out certain species of plants sup~ posed to be characteristic of certain soils, but to study the vegeta- tion quantitatively, as the census does population and agriculture. The approximate relative abundance of the different species has been determined by consolidating or digesting the field notes taken in every county and region, on practically every mile of travel, whether by train, boat, automobile or on foot. 78 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT In each region described the principal vegetation types (which are discussed more fully in the general part of the report) are in- dicated, and the commonest large trees (1.e., those large enough to be sawn into lumber), small trees, woody vines, shrubs and herbs are listed as nearly as possible in order of abundance; which besides bringing out the general appearance of the vegetation also shows at once each region’s resources in timber and other wild products of the vegetable kingdom. There are of course all gradations between trees and shrubs, and a species which is a small tree in one region may be a large tree or a shrub in another, or even in different habitats in the same region. But although no hard and fast lines can be drawn, some sort of size grouping has to be used, for it 1s impracticable to compare the relative abundance of plants differing greatly in size, such as trees and grasses. Mosses, lichers, fungi, etc., are omitted entirely, partly because they form such an insig- nificant fraction of the total bulk of vegetation, and also because only a few specialists (of whom the writer is not one) can identify them positively in the field. It did not seem worth while to assign percentages to nearly all the species, as was done in the northern Florida report, on account of the incompleteness of the data, but in the general discussion there is a census of timber trees, giving within certain limits the propor- tion that each is supposed to constitute of the total forest of each region. And the percentage of evergreens in each region has been estimated, as before, for that being made up of figures for a number of species is more accurate than the percentage of any one species” The significance of evergreens is that, other things being equal, they are most abundant on the poorest soils; for a tree growing in very poor soil has difficulty in getting enough nourishment to make a complete set of leaves every year, and is almost obliged to keep each leaf two or more years (sometimes a dozen years in the case of some of the spruces of the far north, where the soil is frozen about half the year) ; while a tree in rich soil may take up mineral matter in solution so fast that it has to have large leaves to store the surplus in and shed them every year to get rid of it* *For additional notes on the relation of evergreens to soils see 6th Ann. Rep. Fla. Geol. Surv., 175-177 (footnote) ; Science I]. 42 :500-503. Oct. 8, 1915: Bull. Geog. Soc. Phila. 16:111. Dec. 1918; Geol. Surv. Ala. Special Rep. No. mie ja), lo wey=f0) 2 GEOGRAPHY OF CENTRAL FLORIDA 79 To save space and avoid boring readers not interested in botanical matters the plant lists are made rather short, omitting the rarer species that one would not be likely to encounter every day, though in a few cases the lists have been extended just far enough to take in certain species that are especially characteristic. The trees listed in each case are probably only about half the number of species rep- resented in any region, but they make up at least nine-tenths of the bulk of the forest. The shrubs and herbs are listed less completely, partly because they are less important, and partly because some ot them cannot be identified any day in the year as the trees can, and the writer has not yet explored this area in the fall months, whep many herbs bloom that would hardly be noticed in the spring. For each plant there is given its technical name, its common name (if any), and its usual habitat expressed in a word or two. The technical names of evergreens are printed in bold-face type, and in the case of semi-evergreens only the specific name (second word) is thus printed. There is some uncertainty as to just which herbs should be classed as evergreens, partly because some of them have not been sufficiently observed in winter, and partly because it is im- possible to draw a sharp line between evergreens and non-ever- greens. Some herbs whose leaves die down completely in winter farther north are partly evergreen in the area treated and entirely so farther south; and many that are not ordinarily thought of as evergreen have rosettes of leaves close to the ground that live through the greater part of the winter. The technical names of weeds and other plants that seem to grow only in places that have been more or less disturbed by civilization are enclosed in parentheses. Good examples of plants which are ordinarily regarded as indigenous but behave rather suspiciously are the two tall dog-fennels, Eupatorium compositifoluim and E. capillifolium. The former is sometimes seen in apparently un- disturbed high pine land, but it is rhore characteristic of roadsides or even dim trails made by log-carts, and abundant in old fields. The latter is common in lake basin prairies. etc., but may not have. been there in prehistoric times, when such places were not closely pastured as they are now.* Amone the trees the persimmon, a sup- posed native! is far more frequent in cultivated or abandoned fields than it is in swamps, which may be its natural habitat. *See 3d Ann. Rep.; Fla. Geol. Surv., p. 318. 80 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT There is doubtless much room for improvement in the treatment of common names, for the writer does not often stop long enough in one place to interrogate the residents about the names they use for wild plants. Such names enclosed in parentheses are either general terms like grass and fern, or names used in Georgia or farther north, which may or may not be in common use in central Florida. But as a large proportion of the inhabitants of this area came from other states, and some who will read this report are now living in other states, these names ought to be more intelligible than they would be in a region which has had very little immigration. Statistics of population are taken from census reports, prin- cipally the U. S. census of 1910. It would have been interesting to carry the investigation back to 1830, when Florida first figured in census returns, but previous to 1887 the counties in central Florida were so few and large that it would be difficult to get an adequate representation of any one region from county statistics. However, some figures illustrating the growth and composition of the popula- tion in the whole area in the early days are given in the general discussion. Quite a number of additional data are taken from the state census of 1915, which however does not go into as much detail as the government censuses, and is not so free from typographical errors. At this writing the only returns of population from the U. S. census of 1920 available are the total population of all the counties and some of the cities and towns, but those have been used as far as they go. (It will probably be several months yet before a full analysis of the 1920 population by race, nativity, etc., is ob- tainable. ) The 191° census is also the main source of statistical information about agricultural conditions, though others, as far back as 1850, have been utilized as far as possible. The state agricultural depart- ment took censuses of agriculture in connection with population in 1895 and 1905, and in recent, years has taken censuses of crops, livestock, etc., at biennial intervals. These biennial enumerations subdivide the crops more minutely than the government censuses (which lump together most kinds of vegetables) ever did, and indicate the value of each crop in each county, but give little or no information about the number and size of farms, color and tenure of farmers. value of land. buildings and other property, and expen- ditures for labor. feed, fertilizers, etc. Worse still, they are marred by so many clerical or typographical errors that they have to be GEOGRAPHY OF CENTRAL FLORIDA SI used with caution. The principal use made of them here is to determine the relative importance of different crops in 1913-14 and 1917-1918. Besides returning the crops in more detail, and giving not only acreage but values by counties, another advantage of the state census is that its crop year runs from July 1 to June 30, on account of Florida’s most valuable crops being harvested in winter and spring, while the government census naturally returns the crops by calendar years in Florida, for the sake of uniformity with other states, all of which have colder winters and mostly summer crops. On account of the appropriation for the Geological Survey re- maining at the same number of dollars per annum that it was when money was worth twice as much as it is now, rigid economy has had to be exercised in the selection of illustrations. Out of several hundred photographs available for the purpose, the choice has been narrowed down to 25 new half-tones and 14 old ones. This leaves without illustration such interesting physiographic features as the supposed highest hill in the state (in Polk County), the limestone caves of Marion County, the noted natural race-course of Daytona Beach, salamander hills, and several beautiful lakes and rivers; such vegetation types as grassy dunes, peat prairies and several other types of prairie, the characteristic low hammocks of the Gulf hammock and lake regions, the short-leaf pine and hickory woods of north-central Marion County, calcareous swamps of various kinds, and the flatwoods, bays, and lake shore vegetation of the lake region; and such artificial features as phosphate mines (both hard rock and pebble), the “diatomaceous earth” plants of Lake County, clay pits, sawmills, turpentine stills, roads of crushed limestone, brick, shells, or pine-straw, stone walls, rock chimneys, cattle ranches, orange groves, sugar-cane fields, truck farms, types of farm-houses, cities, towns, hotels, etc. And the counties of Sum- ter and Hillsborotigh do not happen to be represented at all in the illustrations, although many pictures have been taken in both. But some of these features or places are well illustrated in previous pub- lications of this Survey, or in easily accessible magazines and pamphlets. Figures 8, 7, 9, II-1'°3, 20-22, 29, 35, 36, 39 and 41 are from earlier reports, and the remaining 25 are new. All are made from photographs in the writer’s private collection of American geo- craphical views, except three that are otherwise credited. They 8&2 FLORIDA GEOLOGICAL SURVEY—-I13TH ANNUAL REPORT are printed in the text instead of on special paper for the sake of economy, and also to bring them as near as possible to the corre- sponding text and save the trouble of fitting two or three on one plate. The map used herewith (fig. 2) is too small to show fine de- tails, but larger maps showing the towns, railroads, etc., are easily accessible. REGIONAL MAP - or CENTRAL FLORIDA REGIONS LWEST COAST ISLANDS 2 GULF HAMMOCK REGION } 3.MIDOLE FLA. FLATWOODS || 4 LIME-SINK REGION S.MID, FLA. HAMMOCK BELT 6 HERRANDO HAMMOCK BELT € | 7LAKE REGION } & FLAT WO0DS (WESTERN) 3. FLAT WOODS (EASTERN) v4 1@ EAST COAST STRIP Fig 2. Map showing boundaries of the regions described herein, and various other geographical features. Scale about 1:2,500,000 or 40 miles to the inch. For various reasons, chiefly lack of time, no bibliography has been prepared for this report, but those in the First, Third, Sixth and Twelfth Annual Reports contain references to numerous im- portant works dealing with central Florida or the whole state, and a few other references are scattered through this report in the form of footnotes. The natural resources of an area of about 1,00c square miles around Ocala, with special reference to geology, vege- GEOGRAPHY OF CENTRAL FLORIDA 83 tation and soils, were described by Dr. E. H. Sellards and others (including the present writer) in the Seventh Annual Report (1915), and that will be referred to occasionally herein, especially under the head of vegetation types. That this report has many shortcomings the writer is well aware (and he, rather than the Survey, should be held responsible for them) ; but those who may be inclined to condemn it as a whole on account of a few misstatements or omissions with respect to some particular locality should bear in mind that it is impossible for one person to see all parts of such a large area in a few months or to de- scribe it fully in 200 pages, and even if time and money were unlim- ited it would be impracticable to go to all the important places with in a few weeks of the time of going to press. Many places indeed have not been visited by the writer since 1915, so that some condi- tions described in the present tense may be things of the past now, on account of the rapid development of this part of the state. Cur- rent items in daily newspapers have been of considerable assist- ance in keeping abreast of the times, however. The writer (or his associates) will be glad to receive construct- ive criticisms from any source, so that if another edition of this work is ever called for; or if it should ever be incorporated inte a geography of the whole State, it can be made as complete and ac- curate as possible. REGIONAL DESCRIPTIONS I. THE WEST COAST ISLANDS (issign 437.) Soll analyses; OvePs) This includes the Cedar Keys archipelago in Levy County, the St. Martin’s Keys and other small rocky islands along the coast o1 Citrus and adjoining counties, and a narrow line of barrier-beach islands (the Anclote Keys, Long Key, ete.) lying from half a mile to three or four miles off shore in Pinellas County; the whole coy- ering perhaps not more than ten or twelve square miles. The Cedar Keys islands are mostly of sand heaped up by the wind (to a height of about 45 feet on Sea Horse Key), but there is con- siderable calcareous material also, in the form of shell fragments. Between them and the mainland the water is very shallow and dot- ted with innumerable patches of salt marsh vegetation (fig. 3), and much of the bottom is covered with oyster bars. There is a wagon road from Cedar Key to the mainland which up to a few years ago was rather unique in being submerged twice at day at high tide. There were a few bridges across the deeper places, and between them stakes were driven along the road so that it could be followed when the tide was up. The “keys” of Pinellas County are also very sandy, but seem to have a larger proportion of shell material than the Cedar Keys group, and there is more lime-loving vegetation. Dunes are not ex- tensively developed. | Some climatic data for Cedar Keys and Tarpon Springs are given in Table 19, in the general part of this report. The climate re- sembles that of the rest of central Florida in having mild winters and wet summers, but the Gulf of Mexico doubtless makes the tem- perature more uniform than.it is in the interior. The rarity of kill- ing frosts is indicated by the occurrence of black mangrove at Cedar Kevs and red mangrove in Pinellas County. The principal vegetation types are the sparse coarse grassy vege- tation characteristic of beaches and dunes, the salt marshes and manerove swamps (fig. 27), scrubbv thickets difficult to classify, and sandy hammocks: The sequence of the following plant list cannot be regarded as very accurate, on account of the writer’s 84 GEOGRAPHY OF CENTRAL FLORIDA 85 limited explorations in the region, but it ought to give a person fa- miliar with the species named a pretty fair idea of what the vege- tation looks like. Fig. 3. Salt marshes on east side of Way Key, about % mile north of Ce- dar Key station, with oyster shells in foreground and black mangrove (Auvi- cennia) bushes in middle distance. Apr] 26, 19c9. Fig. 4. Palm savanna vegetation on stetcnary dunes (containing many shell fragments), on Long Key about 2 miles north of ‘Pass-a-Grille, Pinellas Co. - March 11, 1915. 86 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL’ REPORT COMMONEST PLANTS OF WEST COAST ISLANDS. Sabal Palmetto Pinus Caribaea Pinus clausa Juniperus Virginiana Quercus Virginiana Hicoria glabra? Avicennia nitida Rhizophora Mangle Conocarpus erectus Laguncularia racemosa Quercus geminata Persea littoralis Smilax auriculata Ipomoea Pes-Caprae Ernodea littoralis Serenoa serrulata Myrica cerifera Yucca aloifolia Coccolobis uvifera Batis maritima Quercus myrtifolia Scaevola Plumieri Tlex vomitoria Sophora tomentosa Batodendron arboreum Uniola paniculata Juncus Roemerianus Spartina glabra Opuntia sp. Andropogon glomeratus? Munhlenbergia filipes Chamaecrista sp. Oenothera humifusa Eustachys sp. Cassytha filiformis LARGER TREES. Cabbage palmetto Slash pine Spruce pine Cedar Live oak Hickory SMALL TREES. Black mangrove (Red) mangrove Buttonwood White mangrove Live oak Red bay WOODY VINES. SHRUBS Saw-palmetto Myrtle Spanish bayonet Sea-grape (Serub oak) Yaupon Sparkleberry HERBS Sea oats (Rush) (A grass) Prickly pear (A grass) (A grass) Partridge pea (A grass) Various situations Various situations Stationary dunes Hammocks Hammocks Sandy hammocks Mangrove swamps, and scattered over marshes Mangrove swamps Edge of salt water Edge of salt water Stationary dunes, etc. Sandy hammocks Serubby thickets Beaches, etc. Dunes Various situations Hammocks, etc. Dunes Dunes Sandy marshes Serubby thickets Beaches and dunes Hammocks Inner shores, etc. Sandy hammocks Dunes Salt marshes Salt marshes Old dunes, etc. Dune hollows Dune hollows Dunes Dunes Dunes Thickets, ete. Something like 98% of the trees and shrubs, but not so many.of the herbs, are evergreen. Population and Industries. Although there are no exact figures for the population of such a small area, the density is probably above the state average, owing to a world-wide tendency of people to con- eregate along the coast (where the climate or topography does not interfere) to engage in fishing, commerce, etc. In “rors (Gedar Key town had 800 inhabitants and Pass-a-Grille (on Long Key) 109, which together would make about 90 persons per square mile, even if there were no other settlements. lation of both towns was white. About 70% of the popu- GEOGRAPHY OF CENTRAL FLORIDA 87 Fish of various kinds, oysters and sponges are important pro- ducts. Cedar for pencil wood was formerly cut in considerable quantities at and near Cedar Keys, but the supply is nearly ex- hausted now. The cabbage palmetto is or has been utilized for fiber at Cedar Keys. A considerable part of the population makes a liv- ing by catering to sportsmen and tourists, particularly at Pass-a- Grille and other resorts in Pinellas County. There is very little ag- riculture, but a few cattle are raised on some of the islands, and there is said to be even a dairy on Long Key. 2. THE GULF HAMMOCK REGION (Figs. 5-7, soil analyses 1-5.) This extends along the Gulf coast from Wakulla County to the southern edge of Pasco, with another area, entirely disconnected from the rest but hardly distinguishable from it in any way, farther inland along the Withlacoochee River, mostly in Sumter County. Within our limits the coastal and interior portions are approxi- mately equal in extent, together covering about 1520 square miles. There is nothing very similar farther south, or in any other state Fig. 5. Scene on railroad (Seaboard Air Line), through the Gulf Ham- mock about 4 miles southwest of Ellzey, Levy County; showing out-cropping limestone, and telegraph poles braced because they are not planted very deep in the rock. April 16, 1910. 88 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT The portion northwest of the Suwannee River was described in the 6th Annual Report, pages 302-309, and a few of the vegetation types in Sumter County in the 7th. Pate ese Fig. 6. Hydro-electric power-house with 20-foot dam (built in 1911), on Withlacoochee River about 10 miles below Dunellon. March 4, 1915. Topography and Geology. The region is mostly flat and less than 75 feet above sea-level, and is underlaid throughout with a hard limestone (Oligocene), that is exposed in innumerable boulder- like or larger outcrops.* There are occasional irregular low sandy ridges, scarcely distinguishable from parts of region No. 4, where the depth to the rock is unknown. The coast is unlike any other of equal extent in the world, as far as known, in being bordered by marshes instead of sandy beaches; the reason being apparently that the slope of the ocean bottom here is so gentle as to practically eli- minate wave-action on the shore, just as if there was a barrier beach a few miles off shore. Stern-wheel steamers from the Suwannee River ply the open Gulf from the mouth of that river to Cedar Keys. The same limestone rock that characterizes the region is said to crop out on the bottom of the Gulf some distance out. Some of the rivers have rocky shoals a few miles from their mouths, and the one on the Withlacoochee is utilized for power purposes. *See fig. 5. The soil survey of Hernando County shows one solid area of rock outcrop in the eastern end of the county covering about half a square mile. GEOGRAPHY OF CENTRAL FLORIDA 89 (Fig. 6.) Several of the smaller streams have large limestone springs at their heads. (Fig. 7.) Fig. 7. Large limestone spring at head of Homosassa River about a mile northeast of Homosassa, Citrus County. May 23, 1909. Soils. Only a small part of this region has been covered by soil surveys (those of the “Ocala area” and Hernando County ), so that it is hardly worth while to try to estimate the percentages of the different types of soil. The principal series thus far named are the “Leon”, “Norfolk”, “Portsmouth”, “Hernando” and “Parkwood”, and the texture classes, in order of area, are fine sand (about one- third of the total), swamp, sand, muck, fine sandy loam, tidal] marsh, and clay loam. Rock outcrop, presumably all limestone, constitutes about one-third of 1% of the total area as mapped. Where the sand is not too deep, particularly in all the low hammocks and swamps, the influence of lime is plainly shown in the native veg- etation. Ina few such places there are deposits of gypsum on or near the surface. No chemical analyses of the soils of this region are available, but they are probably more calcareous than the aver- age for central Florida. Vegetation. The vegetation is mostly of the flatwoods type, with a few lime-loving plants, but low calcareous. hammocks are. more frequent and extensive in this region than in any other, with the possible exception of the east coast. .(The great Gulf Hammock in Levy County, shown in fig. 5, is the most typical example.) “The go FLORIDA GEOLOGICAL SURVEY—_I3TH ANNUAL REPORT hammocks often grade into swamps, which are more or less calca- reous too. The coast 1s bordered by marshes, as already stated, and there are quite a number of shallow ponds and wet prairies, particularly in Sumter County. The commonest plants are about as follows: COMMONEST PLANTS OF GULF HAMMOCK REGION. Pinus palustris Sabal Palmetto Taxodium distichum Pinus Caribaea Taxodium imbricarium Pinus Elliottii Liquidambar Styraciflua Pinus Taeda Acer rubrum Magnolia grandiflora Quercus Virginiana Juniperus Virginiana Pinus clausa Ulmus Floridana Tilia pubescens? Fraxinus profunda? Quercus hybrida? Quercus Michauxii Quercus nigra Celtis occidentalis? Carpinus Caroliniana Salis longipes? Quercus Catesbaei Magnolia glauca Quercus cinerea Quercus geminata Fraxinus Caroliniana? Persea pubescens Osmanthus Americana Ostrya Virginiana Berchemia scandens Rhus radicans Gelsemium sempervirens Parthenocissus quinquefolia Smilax laurifolia Decumaria barbara Ampelopsis arborea Serenoa serrulata Myrica cerifera Tlex glabra Cornus stricta? Pieris nitida Cholisma ferruginea Quercus myrtifolia Myrica pumila Cephalanthus occidentalis Asimina pygmaea? Viburnum obovatum Vaccinium nitidum Quercus minima Aralia spinosa Sabal glabra Itea Virginica Rosa palustris Hypericum fasciculatum TIMBER TREES Long-leaf pine Cabbage palmetto Cypress Slash pine (Pond) cypress Slash pine Sweet gum Short-leaf pine Red maple Magnolia Live oak Cedar Spruce pine Elm Lin Ash Water oak Swamp chestn’t oak Water oak Hackberry SMALL TREES. Ironwood Willow Black-jack oak Bay Turkey oak Live oak Ash Red bay WOODY VINES. Rattan vine Poison ivy Yellow jessamine Virginia creeper Bamboo vine SHRUBS Saw-palmetto Myrtle Gallberry (Hurrah bush) (Serub oak) Myrtle (Elbow bush) Pawpaw Huckleberry (Oak runner) Prickly ash Palmetto (Wild rose) Sand myrtle Pine lands Low hammocks, ete. Swamps and low hammocks Low pine lands Cypress ponds Low pine lands Low hammocks, etc. Low hammocks, ete. Swamps and low hammocks Hammocks Hammocks, etc. Low hammocks, etc. Serub Low hammocks Hammocks Swamps Low hammocks Low hammocks Low hammocks Low hammocks Low hammocks Edges of swamps, etc. High pine land Swamps High pine land High pine land, etc. Swamps Swamps Hammocks Hammocks Low hammocks Low hammocks, ete. Hammocks Hammocks Swamps Swamps Low hammocks Flatwoods Hammocks Flatwoods Low hammocks Swamps and flatwoods Sandy hammocks Scrub, ete. Flatwoods Ponds and swamps Flatwoods Low hammocks Flatwoods Flatwoods Hammocks Low hammocks, ete. Swamps Swamps Ponds, ete. GEOGRAPHY OF CENTRAL Tillandsia usneoides Aristida stricta -Cladium effusum Pterocaulon undulatum Juncus Roemerianus Sagittaria lancifolia Iris versicolor Tillandsia tenuifolia (Eupatorium capillifolium) Saururus cernuus Spartina Bakeri (Piaropus crassipes) Carphephorus corymbosus Pontederia cordata Nymphaea macrophylla Mesosphaerum rugosum Polypodium polypodioides Rhynchospora miliacea Mitchella repens Pistia spathulata Senecio lobatus Tubiflora Carolinensis HERBS Spanish moss Wire-grass Saw-grass Black-root (Rush) (Blue flag) Air-plant Dog-fennel Switch-grass Water-hyacinth Wampee Bonnets (A fern) (A sedge) Turkey-berry Water-lettuce FLORIDA ie Oi On trees Pine lands Wet prairies, ete. Flatwoods Brackish marshes Wet prairies, etc. Wet prairies, etc. Low hammocks, etc. Low prairies, etc. Rich swamps Around prairies, ete. Lakes and runs Flatwoods Ponds and swamps Ponds and streams Marly flatwoods, etc. On trees in hammocks Low hammocks Hammocks Caleareous streams Rich swamps Low hammocks About 75% of the large trees and shrubs, but not so many of the small trees and vines, are evergreen. Fisheries. The shallow rock-bottomed waters of the Gulf ad- jacent to this region afford a favorable habitat for many kinds of fish. Besides the ordinary commercial fisheries, the region is visit- ed in winter by many persons from outside the state who fish for sport. Homosassa is a favorite winter resort for Georgia fisher- men. The sponges brought in to Cedar Keys and Tarpon Springs (which are in other regions) must also be counted among the sub- marine resources of the Gulf hammock region. The bird guano industry is described in the chapter on animals. Population. his region does not cover enough of Levy, Citrus, Hernando and Pasco Counties to enable us to get any accurate statistics of the coastal portion from census reports, but the por- tion along the Withlacoochee River is approximately coextensive with Sumter County. Previous to 1887, when it was reduced to its present, size, that county included a considerable part of the lake region also, so that census returns from it for earlier periods have little geographical value. The number of inhabitants per square ~ mile increased gradually from 9.1 in 1890 to 14.1 in 1920. None of the population is classed as urban by the U. S. census, but 20.4% of the people were living in incorporated places at the time of the state census of 1915. In 1910 about 66% of the population was native white, 0.4% foreign white, and 33.7% of African descent. At the same time 3% of the native whites over ro years old, none ot the foreign whites, and 26.9% of the negroes were unable to read ° and write. g2 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT The largest towns in the Gulf hammock region in central Florida in 1915 were Crystal River, with goo inhabitants, Center Hill, with 495, Coleman, 389, Bushnell’ 343, and Webster 307. In 1916 the leading religious denominations among the white church members in Sumter County were Baptist, southern Methodist, Church of God, southern Presbyterian, and Church of Christ; and among tne negroes, Baptist, African Methodist, Colored Methodist, Primitive Baptist, and A. M. E. Zion. Agriculture. For statistics of agriculture we are practically com- pelled to depend on the returns for Sumter County, for the same reason already given under population. agriculture in that county in 1889-90, 1899-1900, and IC¢og-10 are shown in Table 1. TABLE, 1: Agricultural Statistics of Gulf Hammock Region (Sumter Co.), 1890-1910. The leading features of E 1889 1899- 1909-1910 1890 1900] Total | White |Color’d Per cent Aomeland tice tarmac pee bee see ee 22.8 21.8 20.5 19.4 1 e Per cent, of land-improved: =_2+=2.+==<-— 6.2 5.5 6.1 5.5 0.7 ¥ Improved acres per inhabitant ~------- 4.3 3.3 3.4 4.7 1.3 £ Iimingnerie NAS! jOae wey oe ee 5.0 8.2 8.8 7.3 | 15.8 Perecent sor wranntercie wihihense hun 222 ee leh swe 22 83.6 81:0. | %s05 t Per cent of farmers; owners ~~. ___ } | ( 89.7 82.4 83.4 | 79.0 86.3 | - Per cent of farmers, managers ______-- 2) | | 09 0.4 05! O Per cent of farmers, tenants ~_-_______ 13.7 | 9.4 Ufa L615 | 210 Average number of acres per farm ----| 80.2 | 109.2 101.2 118.2 28.1 Average improved acres per farm ____ 21.9 | 29.0 30.4 | 33:8 | 19:7 Value of farm land per acre ($) -----_| --=-- | 6.20/ °17.92| 17.90] 18125 Value of farm land per farm -__-___- | ( 678 1815 2121| 512 - 3450) - Value of buildings per farm __________- \ 205 409| 472 138 Value of implements and machinery___| 30) 58 123} 144 34 Value of live-stock, poultry, ete. _____ 164! 338 490|- 2-22 Number of dairy cows per farm ______ 1.6 DS 8.4 10.2 0.6 Number’ of other cattle per farm _____ 11.1 28.5 14:0) | — 2333/2 Number. of horses per farm —._-______- 1.0 1.8 1.8 1.8 1.0 Number of mules per farm --__~______- 0.1 0.2 0.2 0.2 0.1 Number tot hoes sper ranma eee 10.1 12.5 22.7 | 2. ae Number of sheep per farm _____-_____ 2.1 1.5 | 2:6"), ¢ 22S S| eee Number of poultry per farm —________ 16.3 42.5 24:3 | 2 Expenditures per farm for fertilizer-__| 17.00) 23.80 99/00 aaa | aaa Expenditures per farm for labor -_____| —~____ 39:40| 18900 = = Expenditures sper sfarmfor) feed) .28 2923). 7225 2a) ae AD () eens eee ee Annual value of crops per farm _____-_ \ 895); 28222. - 288 389 | Annual value of animal products _____ \ | | 88) 2 eee Expend. fertilizer per acre improved___ 0.77 0.86 326) cee 20s eee Expend. labor per acre improved ______ Rtaeeee Soars 1.48 6:25 | eae eae Value of crops per acre improved _____ l aeec eee 29:50) (2 ee GEOGRAPHY OF CENTRAL FLORIDA 93 The figures for dairy cows per average farm in 1910 seem rather excessive In comparison with other times and adjacent regions, and may indicate an error of some kind, or some exceptional condition not explained by the census, such as a temporary accumulation of cows on one or two large farms. The leading crops in 1909, in order of value, as estimated from the U. S. census of 1910, were “vegetables” (about 72% of the total), corn, oranges, grape-fruit, peanuts, hay, oats, sweet potatoes, and sugar-cane (the value for the last representing the syrup made from it). In 1913-14, according to the state agricultural depart ment, the order was cucumbers, tomatoes, oranges, cabbages, corn, (string) beans, hay, peanuts, sweet potatoes, watermelons, sugar- cane (syrup), velvet beans, and lettuce. But of course if the lime- sink portion of the county in the northeast corner, could be sepa- rated this sequence might be changed a little. (There are no data for 1917-18, because the agricultural enumerator for Sumter County failed to make a report that year. ) 3. THE MIDDLE FLORIDA FLATWOODS This region extends from north of our limits through Levy County to the Withlacoochee River a few miles west of Dunnellon, where it seems to terminate abruptly. The greater part of it is in Middle Florida (west of the Suwannee River), and it was describea in the 6th Annual Report, pages 310-313. “About 300 square miles of it lies within the area of the present report, and a small part of it is covered by the soil survey of the “Ocala area.”’ It is a level region, perhaps nowhere more than 75 feet above sea-level, with many shallow ponds and bays, and some sluggish coffee-colored creeks. The ground-water is nearly everywhere close to the surface, and there are no known outcrops of limestone, so that the soil is rather sour. Most of the soil in this region within the limits of the “Ocala area” has been classed as ‘Leon fine sand.” The vegetation is mostly of the palmetto flatwoods type, inter- spersed with numerous cypress ponds, bays, and non-alluvial swamps. The commonest plants recognizable in February, March and April seem to be as follows: Q4 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT COMMONEST PLANTS OF MIDDLE FLORIDA FLATWOODS. TIMBER TREES Pinus palustris Long-leaf pine Flatwoods Taxodium imbricarium (Pond) cypress Ponds and bays Pinus Elliottii Slash pine Ponds and swamps Pinus serotina Black pine Damp flatwoods Acer rubrum Red maple Swamps SMALL TREES. Quercus Catesbaei Black-jack oak Drier spots Magnolia glauca Bay Swamps and bays WOODY VINES. Smilax laurifolia Bamboo vine Swamps and bays Smilax Walteri Swamps and bays SHRUBS Serenoa serrulata Saw-palmetto Flatwoods, etc. Pieris nitida (Hurrah bush) Damp flatwoods, ete. Ilex glabra Gallberry Flatwoods, etc. Hypericum fasciculatum Sand myrtle Ponds Aronia arbutifolia (Choke-berry ) Edges of swamps Bejaria racemosa Flatwoods Quercus minima (Oak runner) Flatwoods Cholisma fruticosa (Poor grub) Flatwoods Vaccinium nitidum Huckleberry Flatwoods HERBS Tillandsia usneoides Spanish moss On trees Anchistea Virginica (A fern) Cypress ponds Sarracenia minor Pitcher-plant Flatwoods Pterocaulon undulatum Black-root Fiatwoods Erigeron vernus Flatwoods Aristida stricta Wire-grass Flatwoods Polygala cymosa Cypress ponds Andropogon scoparius? Broom-sedge Flatwoods Pontederia cordata Wampee Ponds Eriocaulon compressum Ponds Nymphaea macrophylla Bonnets Creeks, ete. Centella repanda Flatwoods Bartonia verna Flatwoods Syngonanthus flavidulus Flatwoods About 80% of the trees and shrubs are evergreen, about one- third of the shrubs (both individuals and species) belong to the heath family (Ericaceae) and allied families, and leguminous plants are very scarce, as already observed in the portions of this region situated farther north. This region does not cover enough of any one county to enable us to study it statistically, but it is evidently very thinly settled. Lumbering, turpentining and grazing seem to be the leading indus- tries, and several of the shrubs could furnish a great deal of honey if there were enough people living near to take advantage of the fact. ae To GEOGRAPHY OF CENTRAL FLORIDA 95 4. THE PENINSULAR LIME-SIN‘K OR HARD-ROCK PHOSPHATE REGION (Figs. 8-11, 40. Soil analyses 6-9.) This extends from a few miles north of the northern boundary o1 the state southward through the western half of the peninsula to the neighborhood of Tampa. Its southern limits are ill-defined, or a1 least insufficiently explored, but there is at least one area of con- siderable size in Hillsborough County, entirely disconnected from the rest. It reaches the coast in Pinellas County, which seems to be the only place in peninsular Florida where any high land other than dunes and shell mounds can be seen from the ocean. - Its area in central Florida is about 2,400 square miles. Geology. The greater part of the area is underlaid at no great depth by a comparatively pure limestone now regarded as of upper Eocene age, which is practically the oldest rock outcropping in Florida. Toward the southern end of the region this is supposed to dip southward and be overlaid by the Tampa limestone, of Oligocene age. Extending nearly the-whole length of the region are irregular deposits or pockets of hard-rock phosphate, apparently de- rived mostly from a re-working of the underlying rock by geological processes, but containing many vertebrate fossils of Pliocene age, and designated by geologists as the Alachua formation. Practically the whole surface is covered by several feet of incoherent sand whose age is problematical, and there may be a stratum of clay between the sand and rock in some places, not as extensive in central Florida as farther north, however. The underground water, tapped by many artesian wells at depths usually from 50 to too feet below the surface, is good to drink. but unsuited for boiler purposes on account of the large amount of limestone dissolved in it. For this reason the Atlantic Coast Line R. R. uses water-softeners at its tanks at Ocala Junction, Dunnellon and Croom, and rain water cisterns are used in some of the towns Topography and Drainage. The highest elevations known are a little over 200 feet above sea-level. The topography is, everywhere undulating, with many basins of various sizes and shapes, pre- sumably formed by the solution of underlying limestone. Some of these have sinks or caves in their bottoms, some are sandy and al- ways dry, some are inundated part of the time, and some contain permanent water, making ponds or lakes (fig. 10). The dry basins 13TH ANNUAL REPORT FLORIDA GEOLOGICAL: SURVEY 96 ‘2061 cf ‘QUII IN) pad “a Aq “Aqyunoy GEOGRAPHY OF CENTRAL FLORIDA Q7 are commonest northward, and the lakes most numerous in Hills- borough County, where the ground-water is nearest to the surface. (This southern portion is not very different from the lake re- gion farther east.) Streams and swamps are rather scarce,,on account of most of the drainage being subterranean, through the deep sand and cavern- ous limestone. There are several large limestone springs, the most noted being Silver Spring (fig. 8), a few miles east of Ocala, which is one of the largest in the world. Soils. The greater part of the soil is a cream-colored or lignt buff fine-grained sand, varying toward white or brown, and usually quite uniform in texture to a depth of several or many feet. About half of this region in central Florida is now covered by soil sur- veys, from which it appears that by far the greater part of the soils are referable to the “Norfolk” Series, with a scattering of “‘Gaines- ville,” ‘ “Hernando,” “Leon,” “Fellowship,” “St. Lucie,” etc (which names however may mean little to persons not thoroughly familiar with the publications of the U. S. Bureau of Soils, to which they are at present chiefly confined). The leading texture classes are fine sand (about 75% of the total), sand, fine sandy loam, Fig. 9. High pine. land with scattered oaks (the most conspicuous one a live oak, (Quercus geminata), about 5 miles west of Inverness, Citrus County. March 14, 1914. 08 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT Fig. 10. Shallow basin containing water, in open pine forests about 4 miles west of Inverness. There is no fringe of bushes around this pond, a fact doubt- less correlated with its considerable seasonal fluctuations, which make the edge of the area subject to fire variable. (Compare with fig. 22.) March 14, IgT4. Fig. 11. Interior of rather open scrub about 5 miles west of Inverness, taken from a point about 20 feet up a tree. March 14, I914. GEOGRAPHY OF CENTRAL FLORIDA 99 swamp, and loamy sand. Scrub, or white sand, under the various designations of “Norfolk sand with scrub oak vegetation,” “Leon fine sand, scrub phase,” “St. Lucie sand,’ and ‘Leon fine sand, rolling phase,” makes up about 2% of the total. A few mechanical analyses are given in the general chapter on soils, but no reliable chemical analyses seem to be available yet. Vegetation. High pine land, with or without a lower story of black-jack or turkey oak or both, makes up at least three-fourths of the total native vegetation. (See figs. 9, 10.) The oaks seem to increase in numbers wherever the pines are cut off, perhaps chiefly because that allows the ground to dry out a little more and they prefer the driest soils. There are a good many hammocks, mostly along rivers and on lake peninsulas and islands, and a few patches of scrub (fig. I1), ranging in size from a few acres to several square miles. As there is more high pine land than all other vegetation com- bined, a census of plants, especially herbs, for the whole region bears considerable resemblance to that for high pine land in the “Ocala area,” published in the 7th Annual Report (pages 166-167). The commonest species seem to be as follows, except that herbs that bloom in late summer and fall are probably not represented as well as they should be, for lack of observations at that time of year. The first tree listed is, or was originally, probably at least fifty times as abundant as its nearest competitor. COMMONEST PLANTS OF PENINSULAR LIME-SINK REGION. TIMBER TREES , Pinus palustris Long-leaf pine High pine land Taxodium distichum Cypress Swamps Liquidambar Styraeiflua Sweet gum Aammocks, ete. Pinus clausa Spruce pine Scrub Quercus laurifolia Quercus Virginiana Magnolia grandiflora Quercus falcata Sabal Palmetto Pinus Taeda Taxodium imbricarium Persea Borbonia Acer rubrum Hicoria glabra Hicoria alba \ Quercus Catesbaei Quercus cinerea Quercus geminata Batodendron arboreum Osmanthus Americana Live oak Magnolia Red oak Cabbage palmetto Short-leaf pine (Pond) cypress Red bay Red maple Hickory Hickory SMALL TREES. Black-jack oak Turkey oak Live oak Sparkleberry Sandy hammocks Hammocks, ete. Hammocks Richer uplands, northward Low hammocks, ete. Hammocks, ete. Ponds Hammocks Swamps Sandy hammocks Rich uplands High pine land High pine land High pine land and scrub Sandy hammocks Sandy hammocks 100 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT Quercus Margaretta (Diospyros Virginiana) Cornus florida Quercus Chapmani Salix longipes? Crataegus Michauxii? Ilex opaca Magnolia glauca Vitis rotundifolia Rhus radicans Gelsemium sempervirens Vitis aestivalis Decumaria barbara Smilax auriculata Serenoa serrulata Cholisma ferruginea Chrysobalanus oblongifolius Myrica cerifera Myrica pumila Vaccinium nitidum Ceratiola ericoides Quercus myrtifolia Ceanothus microphyllus Tlex glabra Phoradendron flavescens Asimina speciosa? Cephalanthus occidentalis Rhus copallina Hypericum fasciculatum (Baccharis halimifolia) Asimina reticulata? Quercus Catesbaei (shrubby) Callicarpa Americana Viburnum obovatum Asimina augustifolia Rhus Toxicodendron Aristida stricta Tillandsia usneoides Kuhnistera pinnata (Eupatorium compositifolium) Eriogonum tomentosum Andropogon Virginicus Carphephorus corymbosus Chamaecrista fasciculata? Actinospermum angustifolium Eupatorium aromaticum Pterocaulon undulatum Pteris aquilina S Croton argyranthemus Cladium effusum Sericocarpus bifoliatus Lupinus diffusus Stillingia sylvatica Psoralea canescens Spartina Bakeri Helianthus Radula Stenophyllus Warei (Piaropus crassipes) (Eupatorium capillifolium) (and about 270 others) About 83% of the large trees and still more of the shrubs are evergreen, but Ericaceae (heath-like plants) are comparatively Post oak Persimmon Dogwood Willow (Red) haw Holly Bay WOODY VINES. Muscadine Poison ivy Yellow jessamine Wild grape SHRUBS Saw-palmetto Myrtle Myrtle Huckleberry Rosemary (Serub oak) Gallberry Mistletoe Pawpaw (Elbow-bush) Sumac Sand myrtle Pawpaw Black-jack oak French mulberry Pawpaw Poison oak HERBS Wire-grass Spanish moss (Summer farewell) Dog-fennel Broom-sedge Partridge pea Black-root (A fern) Saw-egrass (Lupine) Queen’s delight Switch-grass . (A sedge) Water-hyacinth Dog-fennel High pine land Old fields, ete. Rich uplands Sandy hammocks Edges of swamps High pine land, old fields, ete Sandy hammocks, etc. Swamps Hammocks Low hammocks Hammocks Hammocks Swamps Serub Various situations Sandy hammocks High pine land Low hammocks, ete. Pine lands High pine land, ete. Serub, ete. Scrub High pine land Low pine land On oaks mostly High pine land Ponds and swamps Uplands Ponds Low places High pine land High pine land Hammocks, ete. Low hammocks High pine land High pine land High pine land Hammocks, ete. High pine land Highpine land and oldfields High pine land High pine land High pine land High pine land High pine land High pine land High pifie land High pine land High pine land Along streams, ete. High pine land High pine land‘ High pine land High pine land Around prairies, ete. High pine land High pine land Lakes and streams Low prairies, ete. hus — GEOGRAPHY OF CENTRAL FLORIDA IOI scarce, and Leguminosae (leguminous plants) seem to be more abundant here than in most other parts of central Florida, which indicates that the soil is not as poor as it might look to a new-comer who had spent most of his life in clayey regions. The long-leaf pine is, and doubtless will long continue to be, an important source of lumber, fuel,and naval stores. Near some of the phosphate mines it hag been cut off pretty completely to furnish heat for drying the phosphate rock, leaving a very des- olate-looking country, but it comes back as fast as it is allowed to, without any assistance. The wire-grass and other herbage of the pine lands afford an abundance of free pasturage for cattle. Population. This region does not cover enough of any one county to enable us to estimate the density of population very accurately, but there-are probably at least thirty inhabitants per square mile. It includes most of the settlements in Levy and Citrus Counties, from the statistics of which we can approximate the composition and some other characteristics of the population. These two counties have no places with over 2,500 inhabitants, and therefore no population classed as urban by the U. S. census, but 8.7% of the people were living in the three incorporated towns in 1915. The largest towns in the region at that time were Tarpon Springs, with 1938 inhabitants, Clearwater, with 1932, Inverness, with about 1000 (but not returned separately from the precinct in- cluding the town), Dunnellon 979, Williston 800, Dunedin 429, Anthony 406, and Wildwood 385. (The 1920 census puts Clear- water ahead of Tarpon Springs, but returns for the smaller places have not been published yet). In Levy and Citrus Counties in 1910 about 50.1% of the inhabit- ants were native white, 1% foreign white, and 49% negro. At the same time 5.9% of the native whites, 14.8% of the foreign whites, and 30% of the negroes were illiterate. The illiteracy percentage for foreign whites is considerably higher than it usually is in pri- marily agricultural regions, and probably indicates a considerable number of foreign-born unskilled laborers employed in the phos- phate mines. The foreigners came mostly from Italy, Greece, England, Germany, Canada and Sweden; but of course there is no telling how many of them are fishermen and spongers, living on the coast of these two counties, and therefore entirely outside of the lime-sink region. There is a large colony of Greeks, supported 102 FLORIDA GEOLOGICAL SURVEY—_I3TH ANNUAL REPORT mostly by the sponge business, at Tarpon Springs in Pinellas County. In 1916 the leading religious denominations among the whites were Baptist, Methodist (southern), Church of Christ, Episcopalian and Presbyterian; and among the negroes Baptist and African Methodist. Agriculture. Agricultural conditions here are more like those of the typical South or cotton belt than in most other parts of centras Florida. The ratio of farm land and improved land to total area is indeterminate, for the same reason as density of population, but in Levy and Citrus Counties in 1900 and 1910 there were 2.56 im- proved acres per inhabitant, a lower figure than in a purely agricul- tural region with American standards, and indicating the employ- ment of a considerable part of the population in mining, lumbering, fishing, etc. (This is especially noticeable in the case of the negroes, who have less than one improved acre per inhabitant). Although it is impossible to get any accurate data on the subject from existing census reports, there are probably nearly as many families sup- ported by phosphate mining as by farming, and even more may be engaged in exploiting the forests for lumber and turpentine. The salient features of agriculture for the last three census periods previous to 1920 are shown in the following table. The leading crops in these two counties in 1909, in order of value, were “vegetables”, peanuts, corn, cotton (both kinds), sugar-cane, oats, sweet potatoes, oranges, hay, peaches, grape-fruit, pears, and Irish potatoes. Peanuts had probably increased in relative impor- tance since 1899, judging by the increase in number of hogs per farm. 7. fis ee CN PRA ae ae SS las £ as! GEOGRAPHY OF CENTRAL FLORIDA 103 PARE 2: Agricultural Statistics of Lime Sink Region (Levy & Citrus Cos.) 1890-1910. 1889- |1899- | 1909-1910 1890 1900) Total | White |Color’d Improved acres per inhabitant ~_-----~ 3.83 2.56 2.56 4.4 0.64 inhabitants pers farm). 2222222 soe. 10.0 12.7 Wel 10.7 | 45.2 imerecent on farmers.white 2222-27 2 82 |) 2 ose 82.3 oA 2 AN at, ARES haps Ciel Per cent of farmers, owners ~--------= } 92.4 |. 81.7 81.2 82.8 | 74.6 Per cent of farmers, managers ~------- j t 28 0.7 0.8 0 Per cent of farmers, tenants ~--------- 7.6 15.5 18.1 16.4 | 25.4 Average number of acres per farm ----| 136.3 109.0 | 159.0 | 180.0 | 68.7 Average improved acres per farm ~___-_ 38.8 32:7 43.9 47.3 28.8 Value of farm land per acre ($) ------| ----- 5.40 7.36 7.25| 8.63 Value of farm land per farm _-___-~_- 588 1170 1305 594 1905| - Value of buildings per farm ___-__- “Ee | | 232 340 379 168 Value of implements and machinery__-| 46) 38| 98 113} 32 Value of live-stock, poultry, ete. ~---- | 253| 358}: = | a ene ee Seti Number of dairy cows per farm __---- 4.9 | 3.0 3.3 3.6 1.4 Number of other cattle per farm _____ AC Tal AO (OM NA Beit ete see | Number of horses per farm ___________ 1.6 ea 1.6 1.4. 1.2 Number of mules per farm ---------__ | 0.1 | 0.1 0.2 | OSA eOLk Number of hogs per farm —~__-.-.-_.__ Pe aRU EG CAG Ps oe ee Number of sheep per farm =J.2.._-*-. 1.8 3.0 CT eas a ae == Number of poultry per farm ___----__ 28.2 PARE Se aa I is = ees Expenditures per farm for fertilizer___| 3.74 1] VO PE SS aaa Expenditures per farm for labor ~--_-- | #2 2510 40 DOI. So 22 Wess Expenditures per farm for feed ~_----- ing Sores dperaeee le PSCC yee eee a) Annual value of crops per farm ____~_- | 620 —_——— | 272 340| - Annual value of animal products ___-- S | | | PP, dy 3 eke (ees Expend. fertilizer per acre improved__- 10 04 268 | ots pee Expend. labor per acre improved __----| ~---- | STARA Ms Pia 02 Fe | A SS Sel Ses roe Value of crops per acre improved -----| ~---- fren ate tg ee ee In 1917-18, according to the state agricultural department, the leading crops were sea-island cotton, peanuts, corn, sweet potatoes, velvet beans, (including hay thereof), sugar-cane, cucumbers, cow-peas (including hay), cabbage, oranges, (grass) hay, oats, watermelons, pecans, Irish potatoes, peaches, egg- plants, squashes, pears, castor beans (a “war crop,” not raised much before or since), tomatoes, string beans, upland cotton, lettuce and plums. If we had data for the lime-sink portions of Hernando, Pasco, Hillsboro and Pinellas Counties no doubt oranges would take a much higher rank and peanuts and cotton a lower. This region leads the rest of central Florida in the rel- ative importance of peanuts, as it does in hogs. 104 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT 5o EEE MIDDLE FLORIDA HAMMOCK BELT (Figs. 12-14, 39, 41. Soil analyses 10-26, A, B, Q-U) This has its greatest development in northern Florida, and its southern terminus in Marion County, where it covers only about 250 square miles. Unlike the portions in Alachua, Bradford. Columbia and Hamilton Counties, which occupy a slope between the high flatwoods on the east and the less elevated lime-sink region on the west, the portion south of Orange Lake has sandy lime-sink country on both sides of it, and is more or less interrupted, like a row of fertile islands in a sea of sand. The difference in elevation is not very marked, but the hammock belt averages a little higher than adjacent portions of the lme-sink region. Geology and Topography. In this belt the Ocala limestone, of uppermost Eocene age, comes to the surface in many places, and as it is usually pure enough to dissolve readily, and considerably Fig 12. Pit of Florida Lime Co., near Ocala. By E. H. Sellards, Feb- ruary, IQIO. elevated above the ground-water level, there are numerous sinks, caves, and subterranean streams. The limestone is quarried in several places (fig. 12), and mostly burned for lime. Some of the hills are partly capped by a friable sandstone of uncertain age. + GEOGRAPHY OF CENTRAL FLORIDA 105 Surface streams are few and small, and probably none of them connect above ground with any river. Just north of our limits there are a few large shallow lakes which become dry or nearly so at times. The highest elevations in the region seem to be about 190 feet above sea-level. Soils. By both chemical and physical tests the soils average the best in central Florida, running pretty high in clay and in lime, as can be seen from the analyses in another chapter. In the soil survey of the “Ocala area’’ they are referred to the “Gainesville,” “Norfolk,” “Fellowship” and “Leon” series, and the texture classes, in order of area, are loamy sand, sandy loam, sand, and clay loam, the first constituting about 38% and the last about 1%. Scrub seems to be entirely absent. Fig. 13. Semi+calcareous hammock about a mile southeast of Ocala. Feb. 13, I9I5. Vegetation. The vegetation types of the southern extremity of.the region were described in considerable detail and mapped In the 7th Annual Report. In order of area the principal types seem to be high pine land, red oak woods (fig. 41), high calcareous (or semi-calcareous) hammocks (fig. 13), short-leaf pine and hickory woods (this mostly north of the “Ocala area’), sandy hammocks 106 (fig. 29), and low calcareous hammocks. are about as follows: FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The commonest plants COMMONEST PLANTS OF MIDDLE FLORIDA HAMMOCK BELT. Pinus palustris Quercus falcata Sabal Palmetto Pinus Taeda Liquidambar Styraciflua Magnolia grandiflora Quercus laurifolia Persea Borbonia Quercus Michauxii Hicoria alba Quercus nigra Hicoria glabra? Tilia pubescens? Quercus Virginiana Fraxinus Americana Celtis occidentalis? Cornus florida Crataegus Michauxii? Ostrya Virginiana Cercis Canadensis Carpinus Caroliniana Osmanthus Americana Tlex opaca Batodendron arboreum Rhus radicans Smilax lanceolata Vitis rotundifolia Gelsemium sempervirens Bignonia crucigera Parthenocissus quinquefolia Phoradendron flavescens Serenoa serrulata Myrica pumila Myrica cerifera Callicarpa Americana Cephalanthus occidentalis Ilex vomitoria Cornus stricta? Tillandsia usneoides* Aristida stricta Pteris aquilina Tubiflora Carolinensis Mitchella repens (Eupatorium compositifolium) Oplismenus setarius Dryopteris patens? Smilax pumila Eriogonum tomentosum Houstonia rotundifolia (Cassia Tora) (Gnaphalium purpureum) TIMBER TREES Long-leaf pine Red oak Cabbage palmetto Short-leaf pine Sweet gum Magnolia Red bay Hickory Hackberry SMALL TREES. Dogwood (Red) haw Redbud Ironwood Holly Sparkleberry WOODY VINES. Poison ivy (Wild smilax) Muscadine Yellow jessamine Cross-vine Virginia creeper SHRUBS Mistletoe Saw-palmetto Myrtle Myrtle French muibverry (Elbow-bush) Yaupon HERBS Spanish moss Wire-grass (A fern) Turkey-berry Dog-fennel (A grass) (A fern) Coffee-weed High pine land Rich uplands Hammocks and fields Woods Various situations Hammocks Sandy hammocks Richer hammocks Richer hammocks Rich uplands Low hammocks, ete. Sandy hammocks ¢ Rich hammocks Various situations Rich hammocks Rich hammocks Rich uplands f Old fields, etc. High hammocks Caleareous hammocks Low hammocks, etc. Sandy hammocks Sandy hammocks Sandy hammocks er ee Low hammocks, etc. Hammocks Hammocks, ete. Hammocks, ete. Hammocks Hammocks ‘ Hammocks High hammocks, etc. High pine land, ete. Hammocks Hammocks Swamps, etc. Hammocks Low hammocks On nearly all trees High pine land High pine land Caleareous hammocks Hammocks Old fields, ete. Hammocks Calecareous hammocks Sandy hammocks High pine land High pine land, ete. Roadsides, etc. Cultivated fields *About ten times as abundant as the next. GEOGRAPHY OF CENTRAL FLORIDA 107 Only about 65 7 of the trees are evergreen, the lowest figure of any region in this latitude in Florida. Ericaceous shrubs are rather scarce, as in other calcareous regions, and leguminous plants fairly well represented, especially among the weeds. Not much use seems to be made of the native vegetation, except the pines for lumber and turpentine, almost any of the trees for fuel, and the Spanish moss for mattresses. In the early days the forest was simply an encumbrance on the land, that the farmers had to get rid of with much labor. At present it is customary in this and other hammock regions in Florida to let cabbage palmettos grow in orange groves and other cultivated ground wherever they will (see fig. 14). Some of these may be remnants of the original forest, but probably most of them have been planted by birds, and are left because they indicate hammock land and are ornamental and do not take much light and nourishment away from the crops. a a ea —— Ny. rs ‘ Fig. 14. Cabbage palmettos in cultivated field on hillside about 2 miles south of Ocala. March 8, 1914. Population. As this region covers only a small part of Marion County, and contains a city of considerable size, it is not possible to get any accurate information about the rural population from census reports; but in number of inhabitants per square mile and 108 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT in proportion of negroes it is unquestionably above the average for central Florida. In the whole county in to1o there were 38% native whites, 1.3% foreign whites, and 60.7% negroes. The pre- dominance of negroes is characteristic of many other fertile regions in the South, but in all such places the whites tend to congregate in the towns and cities, making the number of the two races more nearly equal there. In Ocala there were in 1910 and 1915 almost exactly as many whites as blacks, and in some of the smaller towns the whites are decidedly in the majority. The incorporated cities and towns in 1915 were Ocala, with 5,370 inhabitants, Citra, with 400; McIntosh, 206; Reddick, 191; and Belleview, 182. The 1920 census showed a slight decrease tm Ocala, probably due mainly to the migration of negroes from all over the South to northern manufacturing cities during the recent world war. In 1880 (the latest year for which we have such data), when the population of Marion County was still more concentrated in the hammock belt than it is now, about 61% of the inhabitants of the county were natives of Florida, 20% of South Carolina, and 7% of Georgia, with Alabama, North Carolina and Virginia ranking next. Less than 0.7% were foreign-born, the countries most largely represented being England, Germany, Ireland, Canada and Sweden. Thirty years later the proportions had changed but little, the leading nationalities being English, German, Canadian, Scotch, Russian (mostly Jews?), Italian, Swedish, and French. In 1910 the percentage of illiteracy in Marion County was for native whites over io years old 1.5, for foreign whites 1.7, and for negroes 19.6. In the city of Ocala at the same time the census enumerators found only one native white person over 10 who could not read and write, while 6.3% of the foreigners and 5% of the negroes were illiterate. The leading religious denominations in the county in 1916 were, among the whites, Baptist, southern Methodist, northern Metho- dist(?)* southern Presbyterian, Episcopalian, Church of Christ, Disciples of Christ, and Roman Catholics. Among the negroes, Baptist, African Methodist, northern Methodist (?) A. M. E. Zion, and colored Methodist. *See explanation of statistical difficulties in the general chapter on re- ligious denominations. a, lil am 22 Seas & GEOGRAPHY OF CENTRAL FLORIDA 109 Agriculture. On account of its fertile soil this is probably the most extensively cultivated region in central Florida, although the percentage of improved land cannot be estimated, for the reasons already given. But as it probably contains most of the farms in Marion County, the statistics for the average farms in that county ought to represent conditions in the hammock belt pretty well. (If we should add to—or subtract from, as the case may be—the Marion averages the differences between them and those for Levy and Citrus Counties already given, we would probably come still nearer to the actual conditions in the hammock belt, for outside of that belt nearly all the farming in the county is done in the lime- sink region). In 1850 about half the farms in central Florida were in Marion County, and the average farm (or plantation) in the county had 169 acres, of which 34.8 were improved. Its land and buildings were worth $1,055, its implements and machinery $94, and its live- stock $531. In the next decade there was a great expansion, and the amount of improved land increased more than 70%. In 1860, when the ante-bellum plantation system ‘of the South had reached its height, the average Marion County planter owned 450 acres, of which 133.7 were improved, land and buildings worth $4,620, implements and machinery-$205, and live-stock $1,094. At this time considerable sugar was being produced, an industry made possible by the abundance of cheap labor, which does not exist in Florida now.* The Civil War of course made many former slaves farm proprietors, and thus reduced the average size of farms consider- ably; but unfortunately the census did not make any distinction between white and colored farmers until 1900. By 1880 the aver- age farm in the county had shrunk to practically the same size as in the pioneer days of 1850, having 151° acres, with 36.8 im- proved. The land and buildings were then worth $903, implements and machinery $31, and live-stock $204. The expenditure for fer- tilizers the previous year was 86 cents per farm or a little over 2 cents per improved acre. Agricultural conditions at the next three U. S. censuses are shown in more detail in Table 3. *But for this difficulty tea and silk could probably be produced here too. IIo FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT TABLE 3. Agricultural Statistics of ee Florida Hemmock Belt (Marion Co.), 1890-1910. ay rare USSD Lego: | 1909-1910 1890 1900| Total | White |Color’d Improved acres per inhabitant ~------- 3.14 2.98} 3.24 6.13 1.37 Tne bites sp expuatenr reese eee os 9.6 Lar ee 283) 9.2) 16.3 Per cent ol fanimenrssawinipe sss = sm ss 2. [spo saene 49.4 5B el yan a alk eee Per cent of farmers, owners —__-______ ( 82.3 | 86.7 87.8 | 85.6 . 89.8 | - Per cent of farmers, managers -~------ \ | | 3.3 2.2 oat) Oe Percent of, farmers)stenants) 22—— = 10.2 14.4 Iba 8.5 14.0 Average number of acres per farm ----| 97.2 79.9 | 101.5 | 151.0 | 45.3 Average improved acres per farm ----| 30.2 28.8 40.5 56.5 | 22.3 Value of farm land per acre ($) ------| ..---- 6.00) 14.21 15.24) 10.33 Value of farm land per farm ____--_-- ( 482 1441 2295 468 - 3925] - ? Value of buildings per farm ___------- \ | ( 279) 462} 687| 206 Value of implements and machinery_-- 43 45 104 152 49 Value of live-stock, poultry, ete. ----- 225 206 PY | panei aN ERS 3D Number of dairy cows per farm __---- 4.3 2.6 2.6 3.8 Hal Number of other cattle per farm ___-- 7.5 | 9.5 IGS (i epee ee fe Number of horses per farm ~_----__--- 1.1 | 1.3 1.5 1.5 1.0 Number -of mullesr per “farm =2--5- 204 0.3 0.2 | 0.4 0.6 0.1 Number ofehorsmpermtanme=s== 2-2 228 10.0 10.3 Tile Win ee Number of sheep per farm ----_-____- 2.9 1.6 320.2 |e |e Number of poultry per farm _/______ 27.7 31.0 30 '2) ||, 22 ee ee Hxpenditures! per farm. for ‘fertilizers. |) 24:30| “1255/6760 aes ees Expenditures per farm for labor ------| —---- 50.30) 146.00 Expenditures per ianm for? féed <2co222|" e222) see 26 NO ee a | Annual.value of crops per farm _____~ |) \ $93) 2.2=2. |; eee - 394 376] - Annual value of animal products —__-- \ | | 173 || Expend. fertilizer per acre improved__- 81 43 KG Ti) ae oe Expend. labor per acre improved ------| _____ 1.74 3.62| 7 eee eases Value of) crops” per sacte improved 2-222) Le2 | 2s 22 21.00 Ss The leading crops in 1909 were “vegetables,” corn, oranges, peanuts, hay, oats, grape-fruit, sweet potatoes, cane syrup, cowpeas, cotton (both kinds) and Irish potatoes. In 1913-14 the order was, oranges, cantaloupes, sea-island cor- ton, watermelons, corn, velvet beans, lettuce, tomatoes, (string ) beans, peanuts, sweet potatoes, cabbage, upland cotton, cucumbers, cowpeas, cane syrup, (grass) hay, squashes, oats, egg-plants; and in 1917-18 corn, sea-island cotton, peanuts, oranges, sweet potatoes, Irish potatoes, string beans, syrup, velvet beans, (including hay), upland cotton, watermelons, cowpeas, (and hay thereof), grass hay, tomatoes, lettuce, oats, cabbage, cantaloupes, cucumbers, and grape-fruit. The leading animal products in 1909 were hogs, beef cattte, poultry and eggs, milk, butter, wool, and honey. ee ee ee Oe - ——e ee ee ee GEOGRAPHY OF CENTRAL FLORIDA ros 6. THE HERNANDO HAMMOCK BELT (Figs. 15-17. Soil analyses V, W.) In the Third Annual Report this was treated as an outlier of the Middle Florida hammock belt, but it differs from the southern extension of that in Marion County in being much less calcareous and more hilly, and in the entire absence of red oak (the commonest hardwood tree around Ocala), and it seems to merit separate treat- ment. It occupies high land about equally distant from the Withlacoochee River and the Gulf coast, as if it was an erosion remnant left by the deepening of the valley of that river in pre-his- toric times. The portions immediately north and’ south of Brooks- ville have been called Annuttalaga and Choocochattee hammocks respectively, but they are considerably larger and more diversified than typical hammocks. The area of the belt is about 200 square miles. Geology and Topography. Vhe Chattahoochee formation, an impure limestone of Oligocene. age, is exposed around Brooksville, and may underlie the whole area. It is pretty well covered up, though, by clay (utilized for brick-making at Brooksville) and sand. The topography is decidedly hilly, for Florida. Some of the hills are among the highest in the state, though no reliable measurements of them are available yet. The Atlantic Coast Line depot at Brooks- ville is said to be 126 feet above sea-level, and the business portion of the town must be about 100 feet higher, and other elevations near by may be still higher. Blanton, in Pasco County, has an altitude of 106 feet by the railroad survey, and some of the hills a few miles northwest of there the writer would judge from walking over them to be nearly 200 feet higher. Mirror Lake, near the abandoned station of Lenard, a few miles northeast of Blanton, was claimed in an advertisement a few years ago to be 330 feer above sea-level; but the altitude of Lenard is given as 11°5 feet, and the lake does not appear to be much higher than that, probably not over 50 feet higher. On account of the calcareous nature of the country rock, and the still purer limestone of older formations below it, much of the drainage is subterranean. There are a number of lime-sinks, the best known of which is the Devil’s Punchbowl, in the woods a few miles northwest of Brooksville, a conical depression perhaps 100 feet in diameter and 50 feet deep. Apparently no streams from ITiz2 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT this region reach the ocean by open channels. There are several small creeks and branches among the hills, but as far as known they all ffow into sinks, or disappear in the sand at or near the edge of the surrounding lime-sink region. (This phenomenon recalls conditions in the arid regions of the southwestern United States, where there are many well-watered mountain ranges surrounded by deserts which no streams cross.) The permanent ground-water level is in most places far below the surface. A well about 40 feet Fig. 15. Looking north up hill about 75 feet high, on road from Brooks- ville to Blanton, about a mile south of Spring Lake, Hernando County. The most conspicuous trees are short-leaf pine (Pinus Taeda), and sweet gum. March 9, I9QI5. —— ee ee ee ee ee ME Ree Ree oth 4 eee Cele, 4 eee es’ b-etewm- +2 Ne 3 GEOGRAPHY OF CENTRAL FLORIDA ys Fig. 16. Scene in Choocochattee Prairie, about 2 miles south-southeast of Brooksville, looking toward the sink which drains it. A few sheep can be. seen grazing. Feb. II, 1900. below the summit of a hill a few miles northwest of Brooksville, and about 50 feet deep, was observed in March, 1915, to be dry to the bottom. There are quite a number of lakes, some of them small and permanent, much like those in the lake region to be described pres- ently, and others large and shallow, becoming prairie basins in dry seasons or whenever their lime-sink outlets are sufficiently free from obstructions. (Figure 16 shows the sink end of such a basin, a type more frequent in the Middle Florida hammock belt and Tallahassee red hills.*) To the former class belongs Mirror Lake, previously mentioned. It covers a few acres near the top of a hill, and if the water should rise only five feet higher than it was in April, 1920 (which was probably about the average stage), it would run over and down into a dry sandy valley about 50 feet lower. The lake doubtless has a relatively impervious stratum of clay under it. Soils. Most of the soil seems to be above the central Florida average in fertility. In the most typical portions, within a few miles *This type of lake basin was discussed at considerable length by Dr. Sell- ards in the 3rd Annual Report, pp. 43-76, pl. 6-9. (Reprinted with a few ad- ditions in the 6th Annual Report.) See also 6th Ann. Rep., p. 271. IIi4 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT of Brooksville, it is usually rather loamy and retentive of moisture, but in Citrus and Pasco Counties it is drier and sandier, though often brownish in color. The central portion of this belt is covered by the soil survey of Hernando County, published in 1915. In that by far the greater part of the soils are referred to the “Hernando” series (a name apparently not used elsewhere, so that it means little to the reader). Other series in order of area are the “‘Gaines- ville,” “Norfolk,” ‘Fellowship,’ “Portsmouth,” “St. Lucie,” and “Leon.” The prevailing texture classes are fine sandy loam (about 60% ), fine sand, loamy fine sand, and stony clay loam. The scrub, here called “St. Lucie fine sand,” makes up about 3% of the total. Two chemical analyses are given in the general chapter on soils. Vegetation. Wardwood forests, or mixed hardwood and pine cover hundreds of acres in'the neighborhood of Brooksville (fig. 17), but toward the extremities of the region hammocks are chiefly confined to depressions, and the uplands are mostly high pine land. The vegetation is decidedly less tropical than that of some places farther east in the same latitude, and nearly all the plants range at least as far north as Georgia. The short-leaf or loblolly pine (Pinus Taeda), which is probably the most characteristic tree of Fig. 17. Part of Choocochattee Hammock in process of clearing, about 3 miles southeast of Brooksville. Trees mostly live oak and sweet gum. March 9, 1915. GEOGRAPHY OF CENTRAL FLORIDA I15 the whole South, grews nearly throughout this region, but no far- ther south. The reason for all this is not apparent, but may be connected with geological history in some way.* The scrub is nearly all in one patch, a few miles south of Brooksville, and has not been examined by the writer. The absence of the red oak has been mentioned above, and the species of trees seem to be fewer than in the Middle Florida hammock belt. Nearly all the plants seem to be of fairly common and widely distributed species (as in the Tallahassee red hills of northern Florida,; and many other places where short-leaf pines abound), and the most abundant seem to be as follows: COMMONEST PLANTS OF HERNANDO HAMMOCK BELT. TIMBER TREES High pine land, etc. Pinus palustris Long-leaf pine Pinus Taeda Short-leaf pine Hammocks Liquidambar Styraciflua Sweet zum Various situations Magnolia grandiflora Magnolia Hammocks Quercus laurifolia Hammocks Quercus Virginiana Live oak Hammocks Quercus Michauxii Low hammocks Hicoria glabra? Hickory Hammocks Quercus nigra Water oak Various situations Ulmus alata Elm Hammocks Tilia pubescens? Lin Hammocks Celtis occidentalis? Hackberry Hammocks Ulmus Fleridana Elm ‘Low hammocks (Diospyros Virginiana) Persimmon Old fields Persea Borbonia Red bay Hammocks Quercus Catesbaei SMALL TREES. Black-jack oak High pine land Carpinus Caroliniana Tronwood Low hammocks Cornus florida Dogwood Hammocks lex opaca Holly . Hammocks Osmanthus Americana Hammocks Batodendron arboreum Sparkleberry Sandy hammocks Quercus geminata Live oak Sandy uplands Ostrya Virginiana Hammocks Magnolia glauca Bay Along streams Serenoa serrulatat Saw-palmetto Hammocks WOODY VINES. Gelsemium sempervirens Yellow jessamine. Hammocks, etc. Vitis rotundifolia Muscadine Hammocks Rhus radicans Poison ivy Low hammocks (Rubus trivialis?) Dewberry Old fields, ete. Bignonia crucigera Cross-vine Hammocks *The similarity of Hernando County (which then included the present ter- ritory of Citrus and Pasco as well) to some places much farther north was commented on nearly forty years ago by Dr. Eugene A. Smith (Tenth Cen- sos) U.S. vol.'6, p..238., 1884): tSee 6th Ann. Rep., p. 277. tA form with ascending or erect trunk, sometimes ten feet tall. 16 1(0) FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT Serenoa serrulata Viburnum semitomentosum Myrica cerifera Viburnum obovatum Myrica pumila Phoradendron flavescens Vaccinium nitidum Azalea nudiflora? Cholisma ferruginea Ilex glabra Callicarpa Americana Tillandsia usneodies Aristida stricta Carphephorus corymbosus Eriogonum tomentosum Tillandsia tenuifolia Pterocaulon undulatum Pontederia cordata Helianthus Radula Polypodium polypodioides Houstonia rotundifolia Pteris aquilina Chamaecrista fasciculata (Gnaphalium purpureum) Tubiflora Carolinensis (EHupatorium capillifolium) Sericocarpus bifoliatus Salvia lyrata Smilax pumila Mitchella repens Eryngium prostratum? SHRUBS Saw-palmetto Myrtle Myrtle Mistletoe Huckleberry Honeysuckle Gallberry French mulberry HERBS Spanish moss Wire-grass Air-plant Black-root Wampee (A fern) (A fern) Partridge-pea Dog-fennel (Sage) Turkey-berry Pine land, etc. Hammocks Hammocks Low hammocks Pine lands Hammocks Pine lands Hammocks Sandy hammocks Pine lands Hammocks, etc. Hammocks, ete. Pine lands Pine lands High pine land Low hammocks Pine lands Lakes Pine lands On trees in hammocks Pine lands, etc. Pine lands Pine lands Fields and roadsides Low hammocks Lake prairies, etc. High pine land Hammocks Hammocks Hammocks Lake shores, ete. About 80% of the large trees and shrubs, but not so many of th« small trees and vines, are evergreen. This difference is probably due to the fact that the small trees and vines are chiefly confined to hammocks with richer soil, as.in regions 2 and 5. Population. In attempting to estimate the density of population we encounter the same difficulty as in most of the regions previously described, for this belt does not cover as much as half of any one county. But there must be at least forty persons per square mile. As this is evidently the most populous part of Hernando and Pasco Counties, the figures for those counties may represent the composition of the population fairly well. In 1910 they had 56.5% of native whites, 1.6% of foreign whites, and 41.8% of negroes. The percentage of illiteracy (in the population over IO) was 3.1 among the native whites, 8.9 among the foreign whites, and 31.2 amoung the negroes. The last is the highest fig- ure found in central Florida, and that for foreign whites is rather high, too, but both may be due to a large number of unskilled la- borers in the phosphate mines of Hernando County, which are en- tirely outside of the hammock belt. GEOGRAPHY OF CENTRAL FLORIDA 117 The largest towns are Dade City, with 1296 inhabitants in Jan- uary, 1920, Brooksville, with 1o11, and Zephyrhills (formerly Ab- bott), with 577. In 1880 nearly one-third of the inhabitants of Hernando County were from other states, chiefly from Georgia, South Carolina, Alabama, North Carolina, and Virginia, in the order named. The leading religious denominations among the white people in 1916 were Baptist, southern Methodist, Roman Catholic, northern Methodist (?), and southern Presbyterian ; and among the negroes, Baptist, African Methodist, and northern Methodist (?). The Catholics seem to be chiefly concentrated near the western edge ot the region in Pasco County, where there are several places whose names begin with “San” or “St.” founded about forty years ago, and two Catholic schools. Agriculture. The fertile soil attracted farmers at an early period, and in 1850 Benton County (which corresponds with the present Citrus, Hernando and Pasco) had 82 farms, averaging 167 acres apiece, with 32.4 improved, land and buildings worth $966, imple- ments and machinery $82, and live-stock $802. No returns were received from this county in 1860, and those of 1870 are probably not very accurate, but by 1880 the farms had increased in number to 589, and diminished in size to 135 acres with 26.2 improved, land and buildings worth $623, implements and machinery $16.80, and live-stock $378. No fertilizer was reported as used there in 1879. The cattle and hogs probably ranged mostly in the open pine lands of the lime-sink region, as they do now. Even yet farming in Hernando and Pasco Counties is chiefly concentrated in the hammock belt, so that the following table, based on the returns from these counties, ought to represent conditions in this region from 1890 to 1910 pretty well. 118 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT TABLE 4. Agricultural Statistics of Hernando Hammock Belt (Hernando & Pasco Cos.) 1890-1910. Improved acres per inhabitant ~------- Imbalbitancsmperiianimges se etme Percent of farmers. white ~-.--_-_---- Per cent of farmers, owners —-------~- Per cent of farmers, managers -------- Per cent of farmers, tenants ___------- Average number of acres per farm ---- Average improved acres per farm -_-- Value of farm land per acre ($) ~----- Value of farm land! per farms 222==="= Value of buildings per farm ~_-------- Value of implements and machinery_~- Value of live-stock, poultry, ete. ~--+- Number of dairy cows per farm _----- Number of other cattle per farm ___~- Number of horses per farm ----------- Num berrotemules sperma Number of hogs per farm ----~------- Number of sheep per farm —-----~-__- Number of poultry per farm Expenditures per farm for fertilizer___ Expenditures per farm for labor ~----- Expenditures per farm for feed ~~----- Annual value of crops per farm _--~~- Annual value of animal products -_--- Expend. fertilizer per acre improved_-_- Expend. labor per acre improved _---~- Value of crops per acre improved __--- 1909-1910 Total | White we Du, 12.9 8.2 OMG pee =e 83.8 84.5 1.9 2.0 14.3 13.5 76.8 77.0 22.4 22.3 19.65 19.75 1518 1520 494 isa) 87 87| ATS |e 6s eae DOU ee Dae The leading crops in 1go9, by the U. S. census, were “‘vegetables,” corn, oranges, sweet potatoes, cane syrup, tobacco (mostly near Dade City), grape-fruit, peanuts, and strawberries.. In 1913-14, according to the state agricultural department, sweet potatoes, oranges, corn, grape-iruit, tobacco, cowpeas, (including ° hay), syrup, velvet beans (and hay), peanuts, (string?) beans, and watermelons; and in 1917-18, sea-island cotton, corn, oranges, grape-fruit, sweet potatoes, syrup, peanuts, upland cotton, cowpeas (and hay), velvet beans (and hay), castor beans, watermelons, peaches, and Irish potatoes. GEOGRAPHY OF CENTRAL FLORIDA IIg 7. THE PENINSULAR LAKE REGION (Figs. 18-22, 35, 36, 38. Soil analyses 37-45, C-E, J-M.) This is the largest and in some respects the most interesting region in central Florida, with an area of about 4,000 square miles. It extends along the axis or “‘backbone’ of the peninsula from Clay County to DeSoto. County, and has no counterpart in any other state, though ‘there is a small lake region in West Florida (describ- ed in the 6th Annual Report) that resembles it in some particulars. Geology. Geologists have mapped most of the area as underlaia by Upper Oligocene strata, but that is largely hypothetical, for ex- posure of fossiliferous rock are rare. There are also patches, belts or pockets of Miocene and Pliocene formations in several places, mostly not far from the St. John’s River and its tributaries. Rock Spring, in Orange County (fig. 18) is of interest as being the local- ity where the first Miocene fossils were found in Florida.* The vegetation in many low places near lakes and rivers seem to indi- cate limestone or marl near the surface, and there are a few large limestone springs in Volusia, Seminole, Orange and Lake Counties. On the summit of Iron Mountain there is a little ferruginous sandstone or conglomerate, a kind of rock common on non-calca- reous uplands in the coastal plain from New Jersey to Texas, but rare in peninsular Florida. A hard sandy clay, tsually pinkish or mottled (but bright red around Lake Wales in Polk County), seems to be nearly everywhere present on the uplands, though nat- ural exposures of it are scarce, for it is usually overlaid by a few te several feet of loose sand. This clay is used in many places for road- surfacing material, as is some of the marl. Still purer clays are used for brick-making at Whitney, and some kaolin is mined near Okahumpka. There are vast deposits of peat in all the counties (described in some detail in the 3d Annual Report), bordering the larger lakes and rivers and completely filling many of the smaller lake basins. One or two of the peat bogs in Lake County are rich in diatoms, and have been used ina small way for “infusorial earth.”’ Topography. The Ocklawaha and St. John’s Rivers are border- ed by flatwoods sometimes several miles wide, differing little from *See E. A. Smith, Am. Jour. Sci. 121:309. April, 1881; Tenth Census U. S. 6:190. 1884; Dall & Harris, U. S. Geol. Surv. Bull. 84:125. 1892; Matson & Clapp, 2nd Ann. Rep, Fla. Geol. Surv. 114. 1909. I20 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT the flatwoods regions described elsewhere in this report; but most of the region 1s rather hilly, with topography something like that of the lime-sink region but on a larger scale. The highest known ele- vation in the State is Iron Mountain in Polk County, about 325 feet, and there are probably several other points above 300, though we Es) Fig. 18. Rock Spring, Orange County. The water rushes out audibly from the base of a limestone cliff about 15 feet high. Feb. 11, tots. GEOGRAPHY OF CENTRAL FLORIDA I2I Fig. 19. A small lake akout a mile west of West Apopka, Lake County, in a basin over 100 feet deep among sandy hills. Surrounding vegetation all high pine land. March 9, 1914. have no definite data on that point yet. In the southern part of Lake County there are hills that rise even higher above the lakes nearest them than Iron Mountain does. (See fig. 19.)* There are a few dry funnel-shaped depressions, suggesting lime- sinks, in the uplands of Orange and Polk Counties, but it has not been demonstrated that they were formed by solution. There 1s said to be some lime-sink country on the west side of Lake George. which the writer has not yet visited. The scrub areas (described farther on) are thought by some to represent ancient dunes, like these of the east coast, but their topography is not typical dune topography at all. However, it is quite possible that the wind has moved the surface sands a little at a time through many centuries and thus rounded off the hills and hollows. The most striking characteristic of the region, and that which contributes most to its scenic beauty, is its lakes, several thousand in number, of all sizes from a few rods to several miles in diameter. Some are traversed by or connect with rivers, while some have na *An advertising booklet issued a few months ago by the Lake County Chamber of Commerce (and paid for by the County Commissioners), which contains a larger proportion of facts than many publications of its kind, gives the altitude of Sugar Loaf Mountain, north of Minneola, as 312 feet, which seems reasonable. (See chapter on topography, farther on.) I22 FLORIDA GEOLOGICAL SURVEY—_I3TH ANNUAL REPORT outlet. They are comparatively deep, and never go dry, though they may fluctuate a few feet from one year to another with the amount of rainfall. Many of the smaller ones at higher elevations bea1 evidence, in the shape of young pine trees around their shores, ot being a little lower now than they were a generation ago. (See fig. 22). This may be due to a permanent lowering of the ground- water level by numerous artesian wells with outlets at lower levels. Unlike those in the lime-sink region and hammock belts, none of the lakes are known to have any subterranean outlets. Streams are not very numerous, for most of the rainfall sinks almost immediately into the deep sand which covers the uplands. They are nearly all sluggish and coffee-colored. The St. John’s ana Ocklawaha Rivers are navigable for small steamboats all the way through the lake region, and being bordered by tropical-looking vegetation, are favorite scenic highways. | Fig. 20. Lake Alfred, a clear lake in the highlands of Polk County, show- ing a fringe of maiden cane and bonnets a few yards off the sandy shore and parallel with it. May 18, IgIo. Soils. The soil of the uplands is mostly a slightly loamy sand several feet deep, usually creamy or light buff in color, but varying to yellowish, brownish, and ashy gray, the last being found chiefly a few miles south of Lakeland, near the edge of the pebble phos- phate country. There is probably more pure white sand (scrub) in this region than in any other, but there are no data yet for making GEOGRAPHY OF CENTRAL FLORIDA 123 Fig. 21. Looking west along shore of Lake Monroe (part of the St. John’s River system) about one-half mile west of Sanford, showing cabbage palmettos. May 20, 1910. Fig. 22. Small lake near Ellsworth Junction, Lake County, showing fringe of saw-palmetto and gallberry, and long-leaf pine saplings encroaching on it. Feb. 20, 1900. 124 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT an estimate of its area, for the region has scarcely been touched by soil surveys yet.* In Marion County, northeast of Silver Springs, are some clayey flatwoods, of unknown extent, which probably belong to this region. The occurrence of marl and peat in low places has been mentioned above under the head of geology. Some of the low hammocks seem to contain gypsum deposits, as in the Gulf hammock region. Vegetation. The prevailing vegetation type on the uplands js high pine land, very similar to that in the lime-sink region. (Fig. 19, though intended for a different purpose, shows it pretty well). Scrub (fig. 38) occurs in all sorts of situations topographically; usually not far from lakes, but often on uplands remote from any body of water. The level flatwoods bear the vegetation character- istic of such places, and peat prairies and saw-grass marshes border the larger lakes or completely fill small basins. Sandy shores of lakes have quite a characteristic growth of sedges and other com:- paratively small and wiry plants (as do similar places in New Eng- land), merging gradually into that of peat prairies in many places. Peninsulas jutting out into lakes are commonly occupied by sandy hammocks, and marly low places by low hammocks, much like those in the Gulf hammock region. Small and non-calcareous streams are usually bordered by non-alluvial swamps or bays, containing a large portion of evergreens. The commonest plants in the lake region seem to be as follows: COMMONEST PLANTS OF LAKE REGION. TIMBER TREES Pinus palustris Long-leaf pine Uplands Sabal Palmetto Cabbage palmetto Low hammocks Pinus Caribaea Slash pine Flatwoods, ete. Pinus clausa Svruce pine Scrub Pinus serotina Black pine’ Tow pine land Taxodium distichum Cypress Swamps Pinus Elliottii Slash pine Bays, ete. Taxodium imbricarium (Pond) cypress Around lakes and- ponds Liquidambar Styraciflua Sweet gum I.ow hammocks, ete. Magnolia grandiflora Magnolia Hammocks Acer rubrum Red Maple Swamps Pinus Taeda Short-leaf pine _ Low hammocks, ete. Gordonia Lasianthus Swamps and bays Quercus Virginiana Live oak Hammocks Quercus nigra Water oak ‘Low hammocks, ete. Nyssa biflora Black gum Swamps and ponds Ouercus laurifolia Sandy hammocks Hicoria glabra? Hickory Sandy hammocks *The National Forest in eastern Marion County is said to be mostly scrub. | | GEOGRAPHY OF CENTRAL FLORIDA I Quercus Catesbaei Quercus cinerea Magnolia glauca Quercus geminata Cholisma ferruginea Quercus myrtifolia Persea humilis Salix longipes? Myrica cerifera Osmanthus Americana Prunus umbellata Quercus Chapmani Cornus florida Ilex Cassine Carpinus Caroliniana Smilax laurifolia Vitis rotundifolia? Smilax auriculata Ampelopsis arborea Rhus radicans Parthenocissus qguinquefolia Berchemia scandens Serenoe2 serrulata Pieris nitida Myrica cerifera Chrysobalanus oblongifolius . Hypericum fasciculatum Ceratiola ericoides Ceanothus microphyllus lex glabra Bejaria racemosa Lupinus diffusus var.* Myrica pumila Cephalanthus occidentalis Vaccinium nitidum Garberia fruticosa Cholisma fruticosa Prunus geniculatay Rhus copallina Sabal glabra Tillandsia usneoides Aristida stricta Kuhnistera pinnata Cladium effusum Spartina Bakeri Pterocaulon undulatum Pontederia cordata Panicum hemitomon Anchistea Virginica Eriogonum tomentosum SMALL TREES. Black-jack oak Turkey oak Bay Live Oak (Serub oak) Red bay Willow Myrtle Hog plum Dogwood (Cassena) Tronwood WOODY VINES. Bamboo vine Muscadine Poison ivy Virginia creeper Rattan vine SHRUBS Saw-palmetto (Hurrah bush) Myrtle Sand myrtle Rosemary Gallberry (Lupine) Myrtle (Elbow-bush) Huckleberry (Poor grub) (Plum) Sumac , Palmetto HERBS Spanish moss Wire-grass (Summer farewell) Saw-grass Switch-grass Black-root Wampee Maiden cane \A fern) to oat Sandy uplands Sandy uplands Swamps and bays Scrub, ete. Sandy hammocks, ete. Scrub, ete. Scrub Edges of swamps Hammocks, ete. Sandy hammocks Hammocks, ete. Sandy hammocks Hammocks Swamps Low hammocks Swamps and bays Hammocks and swamps Serub Low hammocks Low hammocks, ete. Hammocks, ete. Low hammocks Various situations Scrub, bays, ete. Low hammocks, ete. High pine land Around lakes prairies Scrub mostly High pine land Flatwoods Flatwoods High pine land Flatwoods Swamps, ete. Pine lands Serub Flatwoods. High sandy hills Hammocks, ete. Low hammocks and peat On most trees High pine land High pine land Marshes, ete. Around Jakes and prairies Flatwoods, etc. Lakes, ete. Lake margins, etc. Bays, etc. High pine land *This species is ordinarily an herb, but in Polk County and elsewhere it grows bushy, about three feet tall, and is full of leaves and flowers in mid- winter, or earliest spring. +Apparently confined to the lake region, ranging from Lake County to De- Soto. In the original description (Torreya 11:64-67. March, 1911) the flowers were said to be in few-flowered umbels; but they are really solitary and sessile or nearly so. 126 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT (Eupatorium compositifolium) Dog-fennel High pine land andold fields Nymphaea macrophylla Bonnets Lakes and streams Pteris aquilina ~" (A fern) High pine land, ete. Sagittaria lancifolia Lakes and marshes Osmunda cinnamomea (A fern) Swamps, ete. Croton argyranthemus High pine land Doellingeria reticulata Flatwoods Actinospermum angustifolium : High pine land (Piaropus crassipes) Water-hyacinth Lakes and rivers Eriogonum Floridanum High pine land Lupinus diffusus (Lupine) High pine land Saururus cernuus Swamps, etc. Andropogon sp. Broom-sedge ale Dee Ee Carphephorus corymbosus Like ‘inateins vote HEriocaulon compressum Sten Sa a Berlandiera subacaulis Eee an Castalia odorata Water-lily Lakes, ete. Psoralea canescens High pine land Acnida australis Careless Marshes Aristida spiciformis (A grass) Low pine land Andropogon Virginicus Broom-sedge High pine land Galactia Elliottij (Pin-down) Flatwoods Stenophyllus Warei (A sedge) High pine land Centella repanda Lake shores, etc. Osmunda regalis (A fern) Swamps Helianthus Radula Pine lands Syngonanthus flavidulus Flatwoods, ete. Fuirena scirpoidea (A sedge) Lake shores, etc. (and about 300 others) About 85% of the trees and 95% of the shrubs are evergreen. As in many other regions with mainly non-calcareous soils, Ericaceae are relatively abundant and Leguminosae rather scarce. The species that are more abundant in the lime-sink region than here* probably prefer more calcareous or potassic or phosphatic or ferruginous soils, while those with an opposite tendency + are more characteristic of acid soils, swamps, bogs, marshes, etc. A few of the plants in the list, such as Persea humilis, Prunus geniculata, and Eriogonum Floridanum, and possibly fifty other less abundant species not listed are confined to the lake region, or nearly so, while probably an equal number occur in other regions but not outside of Florida; the lake region being far ahead of other *Such as Taxrodium distichum, Liquidambar, Quercus laurifolia, O-— ire semiana, O. falcata, Hicoria alba, Quercus Margaretta, Cornus florida, Cercis, Crataegus Michauxu, Vitis aestivalis, Asimina speciosa (?), Cephalanthus, Carphephorus corymbosus, and Eupatorium aromaticum; nearly all of which are deciduous. tLike Pinus Caribaea, P. clausa,. P. serotina, P: Elliottii, Acer rubrum, Gordonia, Nyssa, Magnolia glauca, Persea humilis, Smilax laurifolia, S. au- riculata, Serenoa, Pieris nitida, Hypericum fasciculatum, Bejaria, Vaccinium nitidum, Garberia, Cholisma fruticosa, Prunus geniculata, Cladium effusum, Spartina Bakeri, Pontederia, Panicum hemitomon, Anchistea, Nymphaea, Os- munda cinnamomea, and Doellingeria; most of which are evergreen. ° en ee ee ee ee Ae ITE Ee ee ee oe GEOGRAPHY OF CENTRAL FLORIDA 127 parts of central Florida in the matter of local or endemic species, and contrasting especially with the hammock belts in this respect. The pines are used for fuel, lumber, turpentine, etc., as in other regions, but have not been exploited quite so ruthlessly, whether wholly because of topographic difficulties or partly from a slight regard for the beauty of the scenery is not quite certain. Plans are just being perfected for utilizing the saw-grass, which abounds on thousands of acres of marshes, for the manufacture of paper. As in many other parts of Florida that are comparatively little cultivated, honey-yielding plants are numerous and abundant, but that fact does not seem to have been taken advantage of as fully as it might be. Population. The statistics of population are based on the re- turns for Lake County, which is wholly in this region, and Semi- nole and Orange, most of whose population is in it. No accurate estimates can be made for periods previous to 1887, when there were great changes in county boundaries, but in 1890 there were g inhabitants per square mile in the area just defined. This in- creased, somewhat irregularly, to 19.4 in 1920. In 1910 the pop- ulation was divided according to race and nativity into 57.5% na- tive white, 3.3% foreign white, and 39.2% negro. The foreign- ers were mostly from England, Germany, Canada, Sweden, Scot- land and Ireland. The percentage of illiteracy at the same time was I.g among the native whites, 1.7 among the foreign whites, and 23.0 among the negroes. The incorporated cities and towns in 1915 were Lakeland, with 7,287 inhabitants (reported as having decreased a little by 1920, which is hard to believe) ; Orlando, with 6,448; Sanford, 4,998; DeLand, 3,490; Leesburg, 1,360; Winter Haven, 1,226: Eustis, 1,148; Winter Park, 787 - ‘Take Helen, 786; Winter Garden, 648; Mt. Dora, 615; Apopka, 598; Umatilla, 527; Auburndale, 511; Orange City, 506; Tavares, 449, and Haines City, 378.° The leading religious denominations among the whites in 1916 were Southern Methodist, Baptist, Southern Presbyterian, Episco- palian, Roman Catholic, Northern Methodist, Congregationalist, Northern Presbyterian, Seventh Day Adventist, Disciples of Christ, and Primitive Baptist. Among the negroes, Baptist, African Meth- odist Episcopal, A. M. E. Zion, and northern Methodist. 128 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT Agriculture. Farming developed rather late in this region, and is of a more specialized type than in the regions previously de- scribed. Both in 1890 and in 1910 only about 16% of the area was in farms and 3.2% improved. ‘The principal features of agri- culture in this region since the establishment of Lake County are shown in Table 5. TABLE 5. Agricultural Statistics of Lake Region (Lake & Orange Cos.), 1890-1910 : 1889- 1899- 1909-1910 1890 1900| Total | White |Color’d Improved acres per inhabitant ~------- 2.22 2.28 1.65 2.51| 0.33 Inhabitants) per farm!) 2222222222 Sse | d.97 OS | am ES 7.55| 43.0 Perhcentrottarmers: (white: --=-—22 32a ieee 92.8 8900.) 222 2 Per centror farmers, owners. 222552 75s= / ( Tore 80.6 80.2 S3er 99 Per cent of farmers, managers ~------- \ | 18.4 11.9 12.6 5.7 Percent ot tarnmers: tenants) 2252.22" — 2a 6.4 eo ee. 10.7 Average number of acres per farm ----| 66.7| 84.0 92.8 98.9 | 39.5 Average improved acres per farm —-_-_- 13.5 20.7 URS E7Uie pay a ne Fe- 14.0 Value of farm land per acre ($) ------| ----- 19.30] 41.80) 41.55] 46.80 Value of farm land per farm —_---_-- } ( 1620 3880 4110} 1850 - 4850 ‘Value of buildings per farm ___--___-- | 513 sts) 1070 495 Value of implements and machinery-~- 4] 57 147| 155 74 Value of live-stock, poultry, etc. ~---- 107 260 408) ti = [ee Sez Number of dairy cows per farm __---- 2.3 105) it 12ers Number of other cattle per farm --~-- 8.0 16.0 16:5) | S22 el eee Number of horses per farm —------__-- 0.6 0.9 0.9 0.9 0.7 Number of mules per farm ----------- 0.2 | 0.2 0.3 | 0.3 0.2 INtimbervon thocsspen. tarnmige====== 2.2, 9.3 9.8.'|. ee Bee Number of sheep per farm —-___-____- 0.1 | 0.8 | 03) eae | ae Number of poultry per farm ____-__~- Weft 21.4 QUT, ||, es Ss Expenditures per farm for fertilizer___| 87.00] 36.20] 165.00] --____ eae Expenditures per farm for labor ------| ----- IY, 07.20)" AOS 000) aes | See Expenditures sper farm ‘tor, feed! = 222i) ss ena) ees 86.40). 2. | Sees Annual value of crops per farm __-~-- } ( 926|\\.= 22/2 eee 381 282] - | Annual value of animal products __--- 121 2 ee [Lae Expend. fertilizer per acre improved_-_-| 6.42 1.74 8:84) | col Expend. labor per acre improved ~_---- Neppeceesres | 72 10:20 |p eee |; eee Value of crops per acre improved _--~- ae es ee ee [. aD ON = eee | 2 eee The census of 1910 reported two farmers in central Florida who were neither white nor negro; one in Orange County and one in Volusia. The writer has no information about the color of the former, but the one in Volusia County is a Chinaman, who lives near DeLand (therefore in the lake region), and has made some- thing of a reputation with his oranges. By subtracting the re- turns for negro farmers from those for all colored farmers, it . ee a x | * GEOGRAPHY OF CENTRAL FLORIDA 129 appears that he had in 1910 115 acres, of awhich 20 were improved, land worth $4,000 (or $34.80 per acre), buildings worth $1,000, and implements and machinery $150. The one in Orange County was probably Chinese or Japanese and a truck-farmer, for he had only two acres, all improved, worth $100 or $50 per acre, buildings worth $750, and no implements or machinery worth mentioning. In several places in this region corporations have acquired large tracts of land and sold it in small parcels, commonly of ten acres, to persons who may have never been in Florida at all, to -be planted to oranges or other citrous* fruits. For the sum agreed upon the corporations set out the trees desired, cultivate them, market the fruit when it matures, and remit the profits (if any) to the absent owners; and this sort of business if efficiently managed may be very satisfactory to all concerned. Technically each individual holding is a farm, operated by a manager, without buildings or live- stock ; but practically the owners are merely stockholders in a large farming enterprise; and different interpretations of this point by the census might make a considerable difference in the per farm statistics. The leading crops in 1909,~in order of value, by United States census, were oranges (a little over half the total), “vegetables,” grape-fruit, hay, corn, sweet potatoes, Irish potatoes, sugar-cane (syrup), peaches, and pears. In 1913-14, according to the State Agricultural Department, oranges (nearly half), celery, lettuce, grape-fruit, tomatoes, watermelons, (grass) hay, corn, sweet pota- toes, peppers, (string?) beans, cabbage and cucumbers. In 1917- 18, oranges, celery, corn, lettuce, cucumbers, peppers, tomatoes, grape-fruit, watermelons, cabbage, Irish potatoes, “native grass”’ hay, sweet potatoes, string beans, cowpeas (and hay), egg-plants, Natal grass hay, sea-island cotton, beets, squashes, and upland cot- ton. Peanuts, which constitute something like a fifth of the to- tal crop value in the lime-sink region, make less than a thousandth in the lake region, perhaps on account of the scarcity of lime in the upland soils. *It is a common and apparently growing—but not altogether com- mendable—practice to write the noun citrus, the generic name of oranges, lem- ons, kumquats, etc., instead of the adjective citrous. 130 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT 8. PENINSULAR FLATWOODS, WESTERN DIVISION (Figs. 23-25. Soil analyses 27-36, H, J, X.) Besides the flatwoods already described, there is a much larger area, covering the greater part of the peninsula south of our limits, which may be divided into several regions when it is more thor- oughly explored. In the latitudes under consideration it is divided by the lake region into two parts, which may conveniently be treated separately. The western portion, which will be discussed first, has an area of about 1,700 square miles. Geology. he strata beneath the surface sands range from Up- per Oligocene to Pliocene, and are more or less calcareous and phos- phatic; and although natural exposures are comparatively rare, they influence the soil perceptibly in many places. The Pliocene is rep- resented by the Bone Valley formation, which includes the pebble phosphate deposits, and is chiefly confined to Polk County. The mining of this phosphate is perhaps the most important industry in the region. Flowing artesian wells can be had almost anywhere near the coast. There are a few mineral springs, such as Espiritu Santo near Safety Harbor and Kissingen near Bartow. Topography. The surface is comparatively level, as implied by the name “flatwoods,” but fairly ‘well drained.” It has the ap- pearance of having been uplifted a little in comparatively recent times, for near the coast and rivers one can in many places ascend 25 feet in less than a mile, and numerous creeks and branches have cut narrow valleys below the general level. San Antonio, at the upper edge of the region in Pasco County, is said to be 160 feet above sea-level. Shallow depressions a few acres in extent, which hold a foot or two of water in wet seasons, are very common, es: pecially northward, but there are very few lakes, the ponds being in most cases well filled with cypress and other trees. There are more streams in proportion to area than in the other regions, but none of them are considered navigable. Soils. The soil is nearly everywhere sand, of various colors from white to brown, but the underlying rock or marl seems to be usually within a few feet of the surface, making calcareous soils in many low places. The soil surveys of Pinellas and Hillsborough Counties (1914 and 1918) cover the greater part of the area. In those publications the soils are referred to the “Leon,” ‘“Ports- —s 2. ~s GEOGRAPHY OF CENTRAL FLORIDA 131 mouth,” “Parkwood,” “Scranton,” “‘Plummer,”’ “St. Lucie’ and “Fellowship” series, and the leading texture classes are fine sand (about 80% ), fine sandy loam, muck, tidal marsh, swamp, “wate1 and grass,” and peaty muck.’ Swamp, marsh and muck together constitute about 8%, and scrub, designated as “St. Lucie fine sand,” and “Leon fine sand, rolling phase,” is about 3% of the total. Fig. 23. Open flatwoods with pines mostly Pinus Caribaea (slash pine), about two miles west of Odessa, Pasco County. April 18, 1909. fiers" Fig. 24. Cypress pond with no pines and very few shrubs, in flatwoods about half way between Drexel and Odessa, Pasco County. April 18, 1900. 132 FLORIDA GEOLOGICAL SURVEY—13TH ANNUAL REPORT Chemically, most of the soils seem to be pretty well supplied with phosphorus, as would be expected from the occurrence of so much phosphate rock. Vegetation. The vegetation types include flatwoods with and without saw-palmetto (fig. 23), a little high pine land, a few patches of scrub, many cypress ponds (fig 24), wet prairies, high and low hammocks (fig. 25), various kinds of swamps and bays, and salt marshes along the shores of Tampa Bay. The cypress ponds are chiefly confined to Pasco and Pinellas Counties, the lowshammocks to Hillsborough and Polk, and the high hammocks to the neighborhood of the Peace River. Swamps are not very ex- tensive. Fig. 25. Low hammock near Peace River about two miles southeast of Bartow, showing cabbage palmetto, dwarf palmetto, sweet gum, rattan v-ne, etc. March 13, 1915. The commonest plants seem to be as follows, the first tree named being.apparently about 15 times as abundant as its nearest compet- itor: COMMONEST PLANTS OF WESTERN DIVISION OF FLATWOODS. TIMBER TREES Pinus palustris Long-leaf pine Flatwoods Pinus Caribaea Slash pine Flatwoods Taxodium imbricarium (Pond) cypress Cypress ponds Pinus Elliottii Slash pine Branch-swamps, etc. Pinus clausa Spruce pine Scrub GEOGRAPHY Liquidambar Styraciflua Taxodium distichum Acer rubrum Sabal Palmetto Quercus Virginiana Nyssa biflora Magnolia grandiflora Quercus nigra Quercus laurifolia Ulmus Floridana Quercus hybrida? Juniperus Virginiana Gordonia Lasianthus Magnolia glauca Quercus cinerea Quercus Catesbaei Quercus geminata Salix longipes? Carpinus Caroliniana Persea pubescens Cornus florida Smilax laurifolia Rhus radicans Parthenocissus. quinquefolia Gelsemium sempervirens Vitis rotundifolia Ampelopsis arborea Serenoa serrulata Asimina pygmaea? Myrica cerifera Hypericum fasciculatum Ilex glabra Chrysobalanus oblongifolius Myrica pumila Ceratiola ericoides Cholisma ferruginea Viburnum nudum Vaccinium nitidum Pieris nitida Stillingia aquatica Viburnum obovatum Cholisma fruticosa Quercus minima’ Baccharis halimifolia Phoradendron flavescens Quercus pumila Cornus stricta? Cephalanthus occidentalis Tillandsia usneoides Aristida stricta (Eupatorium compositifolium) Pterocaulon undulatum Cladium effusum Pontederia cordata Carphephorus corymbosus Andropogon scoparius? Tillandsia recurvata Saururus cernuus Tillandsia tenuifolia Juncus Roemerianus Lupinus diffusus Syngonanthus flavidulus Panicum hemitomon Spartina Bakeri Kuhnistera pinnata OF CENTRAL Sweet gum Cypress Red maple Cabbage palmetto Live oak Black gum Magnolia Water oak Elm Cedar SMALL TREES. Bay Turkey oak Black-jack oak Live oak Willow Ironwood Red bay Dogwood WOODY VINES. Bamboo vine Poison ivy Virginia creeper Yellow jessamine Muscadine SHRUBS Saw-palmetto Pawpaw Myrtle Sand myrtle Gallberry Myrtle Rosemary (Possum haw) Huckleberry (Hurrah bush) (Poor grub) (Oak runner) Mistletoe (Oak runner) (Elbow bush) HERBS Spanish moss Wire-grass Dog-fennel Black-root Saw-grass Wampee Broom-sedge Air-plant Air-plant (Rush) (Lupine) Maiden cane Switch-grass Summer farewell FLORIDA Low hammocks, etc. Swamps Swamps Low hammocks Hammocks ’ Swamps Hammocks Low hammocks, Hammocks Low hammocks Low hammocks, etc. Low hammocks Swamps and bays etc. Swamps and bays Dry pine land Dry pine, land Serub, etc. 138 Edges of marly swamps Low hammocks Swamps Hammocks Swamps and bays Low hammocks Low hammocks Flatwoods Hammocks Low hammocks Flatwoods, etc. Flatwoods Hammocks Shallow ponds, etc. Flatwoods Dry pine lands Flatwoods Serub Swamps Flatwoods Cypress ponds Low hammocks Flatwoods Edges of swamps On hardwood trees Marly swamps, etc. Swamps and ponds On nearly all trees Pine lands Pine lands, Pine lands Ponds, prairies, ete. Ponds, streams, etc. Flatwoods Flatwoods On trees Swamps Swamps Brackish marshes Dry pine lands Flatwoods etc. Ponds and wet prairies Margins of ponds, etc. Dry pine lands 134 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT Tillandsia fasciculata Air-plant Cypress ponds mostly Osmunda cinnamomea (A fern) Swamps and bays Sagittaria lancifolia Marshes and wet prairies Actinospermum angustifolium Dry pine lands Anchistea Virginica (A fern) Cypress ponds, etc. Polygala Rugelii Flatwoods Helianthus Radula Flatwoods Sporobolus gracilis (A grass) Pine lands About 88% of the trees and still more of the shrubs are ever- green. Plants of the heath family are less abundant here than in some other flatwoods regions that have less fertile soils.. The pines have been very largely exploited for lumber and naval stores, as usual. \ Population. A rough approximation of the population condi- tions may be arrived at by subtracting the figures for Tampa and West Tampa from those for Hillsborough County (which included Pinellas up to 1911). On this basis there were in 1910 nearly 25 inhabitants per square mile, 12.8% of them in cities of over 2,500 population, 71.6% native white, 8.6% foreign white, and 19.7% negroes. (The foreign whites included a few hundred Greeks at Tarpon Springs, which is in a different region, and now in a different county.) In the population over 10 years old 1.7% of the native whites, 19.9% of the foreign whites, and 19% of the negroes were illiterate. Excluding Tampa, which belongs partly to a different region, and West Tampa, which is separated only by an imaginary line, the largest cities and towns in 1915 were St. Petersburg, with 7,186 inhabitants; Bartow, with 3,412; Plant City, 3,229; Fort Meade, 2,150; Mulberry, 1,121; Port Tampa City, 1071; Largo: 552; and Bradley, 295. The returns from the 1920 census, as far as available, give these places the same relative rank, and St. Peters- burg nearly double the population. But these figures should be used with some caution, for St. Petersburg is one of the most pop- ular winter resorts in Florida, and the 1915 census was taken in July and that of 1920 in January. Oldsmar, in the eastern edge of Pinellas County, which was not on the map at all in 1915, may be larger now than some of the places listed. Agriculture. The flatwoods region includes less than half of Pasco and Polk Counties, and Pinellas did not exist in I9g10, so that the best we can do for agricultural statistics is to use the | figures for Hillsborough County. A considerable part of that be- GEOGRAPHY OF CENTRAL FLORIDA 135 longs to the lime-sink region, and the city of Tampa makes farming more intensive in its viinity, but there is some very intensive farm- ing near Plant City anyway, so perhaps the results are not very different from what they would be if we could separate the flat- woods entirely from other regions. The percentage of land in farms increased from 2.7 in 1850 and 8.8 in 1880 to 13.4:in 1910. In the latter year 3.7% of the area of Hillsborough County was “improved,” or 0.4 acres per inhabitant. (Without Tampa it would be about 0.8 acres per inhabitant.) The prevailing conditions from 1890 to 1910 are shown in the following table: . TABLE 6. Agricultural Statistics of Southwestern Flatwcods (Hillsborough Co.), 1890-1910. 1889-|1899- | ———s«1909-1910 1890 1900| Total | White |Color’d er contwon farmers, white 22002 21. --|, fvae OA Tel re OH ity ree Per cent of farmers, owners ~_---____- | ( 88.1 89.3 89.6 84.3 98.5 Per cent of farmers, managers ~------- / 3.4 4.2 4.2 5.2 Per cent of farmers, tenants ~_------_- 1.5 8.5 6.5 6.2 10.4 Average number of acres per farm ----| 100.0 | 71.6 | 57.5 | 59.1 | 32.1" Average improved acres per farm —___- 17.4 | 15.5 15.8 15.9 13.6 Value of farm land per acre ($) ------| -----| 25.01 63.25| 63.40) 56.65 Value of farm land per farm -_~-_--- ] ( 1790 3640 3740| 1820 3810} Value of buildings per farm __~-------- \ | 405 649 670 310 Value of implements and machinery_-_-|: 42 52 125 128 65 Value of live-stock, poultry, ete. ----- 294 252 AAO Fees pa to Number of dairy cows per farm ------ 4.9 2.1 1.6 1.6 0.6 Number of other cattle per farm --_-- 20.8 | 14.8 DO ippats eee 2 |, ss Number of horses per farm —~_--------- 1.1 1.0 1.0 1.0 0.9 Number of mules per farm ----------- 0.1 0.1 0.2 0.2 0.1 Number of hogs per farm _--_-------- 10.5 8.9 COS) (ee ala SS Se ‘Number of sheep per farm _----------- 3.7 3.9 OFS eee [ee Number of poultry per farm _------~-- 34.1 42.3 Ag OM lie Dae = alte Jone Expenditures per farm for fertilizer__- ESO S275 | PAL0S 00 Sees | es Expenditures per farm for labor ------| ----- SOD0|\ee985 0m sees eoes Expenditures per farm for feed ~------ \ | Zebea) eS 7.00 See ashe Se Annual value of crops per farm ~_~_-- } ( G96 |r seers | eae 517| 461 Annual value of animal products —~--- e taaeneey ineeidia ep! <8 Expend. fertilizer per acre improved-_-_-| 1.02 2.25] 6:90) ee esa 2S Expend. labor per acre improved ---~-- lFecesteee 2.37| 6.25 |p eee Value of crops per acre improved _-~-~-- he eee | ie ee eee ee eee ee The leading crops in 1909 were oranges, “vegetables,” grape- fruit, corn, hay, Irish potatoes, cane syrup, strawberries, and sweet potatoes. In 1913-14 oranges (about 45%), strawberries, toma- s 10 136 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT toes, corn, grape-fruit, sweet potatoes, celery, beans, Irish potatoes, cucumbers, syrup, guavas, cabbage, cowpeas, watermelons, rice, peaches, egg-plants, grass, hay, pepers, and peanuts. In 1917-18 oranges (about 30%), corn, strawberries, celery, sweet potatoes, velvet beans (includin hay), Irish potatoes, syrup, cabbage, field peas (and hay), grape-fruit, string beans, peanuts, watermelons, “native grass” hay, tomatoes, lettuce, cucumbers, rice, peaches, ege-plants, grapes (scuppernongs?), Natal grass hay, plums, pe- cans, peppers and onions. Q. PENINSULAR FLATWOODS, EASTERN DIVISION (Figs. 26-28. Soil analysis Y.) The flatwoods east of the lake region cover about 3,600 square miles in the counties under consideration (since Flagler and Okee- chobee were cut off from Volusia and Osceola). At the north, somewhere about the boundary between Flagler and Volusia Coun- ties, there is a gradual transition from the peninsular flatwoods to the East Florida flatwoods (described in the 6th Annual Report). The most conspicuous difference between the flatwoods of East Florida and those of the peninsula is that the cypress ponds of the former nearly always have some slash pine in them, while in the latter the pine usually stops several yards outside of the cypress, leaving the ponds bordered by treeless strips. The cause oy this difference is not yet known, but is probably connected with the soil. Geology. The strata near the surface are so featureless that the. whole area is usually mapped as Pleistocene. Considerably older for- mations occur at no great depth, however, the Ocala (Eocene) being encountered in wells along the east coast within 200 feet of the sur- face. The surface is generally covered with deep sand, but there is marl, presumably Pleistocene, in some hammocks and low spots, and peat in some of the prairies and around lakes. Flowing ar- tesian water can be obtained near the coast and along the St. John’s and Kissimmee Rivers and their lakes, but in about the latitude of Titusville the water in some of the wells is salty. ~ Topography. The surface is for the most part monotonously level, and seems to be nowhere more than 100 feet above the sea. Near the east coast south of Titusville, however, the general level GEOGRAPHY OF CENTRAL FLORIDA 137. of the flatwoods is 10 to 25 feet above the Indian River, and there are many little ravine-like valleys carved by short streams, as if the area had been uplifted in comparatively recent times. Near the lake region the topography is often a little undulating, and the transi- tion from one region to the other gradual, though there are also places where it is abrupt. Shallow depressions abound, ranging > Hh a al i Hite dedivicd ind aa) Ptah Fig. 26. Prairie bordering Lake Tohopekaliga about 3% miles east of Kissimmee, with a few cattle grazing. Abrupt transition to flatwoods with long-leaf pine and saw-palmetto in middle distance. Feb. 18, 1900. Fig. 27. Asphalt road through flatwoods in Osceola County, about ten miles southeast of St. Cloud (the nearest town) and a mile from the nearest house. April 27, 1920. 138 FLORIDA GEOLOGICAL SURVEY—13TH ANNUAL REPORT in size from lakes covering several square miles (most of these near the lake region) to small wet prairies and cypress ponds. Streams are few and sluggish, and the rivers have extremely shallow val- leys. Soils. There are no soil surveys of this region yet, except a nar- row fringe at the extreme eastern edge, but the soils are very sim- ilar in texture to those of the western division, and would presum- ably be classed mostly as fine sand. Chemically the average soil is probably less fertile than in the western division, especially in phosphorus (if the vegetation is a safe guide), but the Kissimmee River prairies are said to be much better than the flatwoods, and to produce some good crops without fertilizer. Vegetation. The principal vegetation types are palmetto flat- woods, prairies of several kinds, cypress ponds, low hammocks, swamps, fresh marshes, and a few patches of scrub. The prairies are several miles wide along the two largest rivers, and those along the Kissimmee (which the writer has not yet had opportunity to ex- plore) are said to have an abundant and varied native fauna and te be great cattle ranges, thus resembling some of the western plains Other and probably different prairies border the lakes near Kis- simmee (fig. 26), and there are numerous small wet prairies in shallow depressions. The cypress ponds usually have narrow prai- rie-like margins, as stated in a preceding paragraph. The commonest plants seem to be as follows: COMMONEST PLANTS OF EASTERN DIVISION OF FLATWOODS. TIMBER TREES Pinus palustris Long-leaf pine Flatwoods Taxodium imbricarium (Pond) cypress Cypress ponds Pinus Caribaea Slash pine Flatwoods Sabal Palmetto ; Cabbage palmetto Low hammocks Pinus clausa Spruce pine Serub Pinus serotina Black pine Damp flatwoods Acer rubrum Red maple Swamps mee Taxodium distichum Cypress Swamps Pinus Elliottii Slash pine Bays, ete. Gordonia Lasianthus Bays Nyssa biflora Black gum Swamps and ponds Quercus Virginiana Live oak Hammocks Liquidambar Styraciflua Sweet gum Low hammocks Magnolia grandiflora Magnolia Hammocks SMALL TREES. Magnolia glauca Bay Swamps and bays Quercus Catesbaei Black-jack oak Drier spots Quercus geminata Live oak Drier spots Quercus cinerea Turkey oak Drier spots Persea pubescens Red bay Swamps and bays Fraxinus Caroliniana Ash , Swamps Tlex Cassine (Cassena) Swamps Hicoria glabra? Hickory Sandy hammocks Salix longipes? Willow Along streams GEOGRAPHY Smilax laurifolia Rhus radicans Vitis aestivalis? Serenoa serrulata Hypericum fasciculatum Myrica cerifera Quercus myrtifolia Pieris nitida Tlex glabra Myrica pumila Cholisma fruticosa Chrysobalanus oblongifolius Vaccinium nitidum Ceratiola ericoides Quercus minima Cholisma ferruginea Bejaria racemosa Asimina pygmaea? Tillandsia usneoides Aristida stricta Pterocaulon undulatum Spartina Bakeri Cladium effusum Tillandsia fasciculata Sarracenia minor Tillandsia recurvata Doellingeria reticulata Polygala cymosa Anchistea Virginica Pontederia cordata Dichromena latifolia Andropogon sp. Polygala Rugelii Syngonanthus flavidulus Aletris lutea Nymphaea macrophylla Sabbatia grandiflora (Euthamia Caroliniana) Aristida spiciformis Osmunda regalis Iris versicolor Centella repanda Helianthus Radula Chondrophora nudata Galactia Elliottii Tillandsia tenuifolia Osmunda cinnamomea Carphephorus corymbosus Chaptalia tomentosa WOODY Bamboo vine Poison ivy Wild grape SHRUBS Saw-palmetto Sand myrtle Myrtle (Serub oak) (Hurrah bush) Gallberry Myrtle (Poor grub) Huckleberry Rosemary (Oak runner) Pawpaw HERBS Spanish moss Wire-grass Black-root Switch-grass Saw-grass Air-plant Pitcher-plant Air-plant (A. fern) Wampee (A sedge) (Broom-sedge) Bonnets (A grass) (A fern) (Pin-down) Air-plant (A fern) VINES. OF CENTRAL FLORIDA 139 Swamps Low hammocks, ete. Hammocks Flatwoods Ponds and wet prairies Hammocks and swamps Scrub Flatwoods, ete. Flatwoods Flatwoods Flatwoods Drier spots Flatwoods Scrub Flatwoods Scrub Flatwoods Flatwoods On most trees Flatwoods Flatwoods Prairies, ete. Marshes, etc. Cypress ponds Flatwoods and prairies On trees Flatwoods . Cypress ponds Cypress ponds Ponds, ete. Shallow ponds Flatwoods Flatwoods Flatwoods Flatwoods Lakes and streams Ponds and prairies Flatwoods, etc. Flatwoods Swamps Swamps, etc. Flatwoods, ete: Flatwoods Flatwoods Flatwoods Swamps Swamps, etc. Flatwoods Flatwoods About 90% of the trees are evergreen, and Ericaceae are rela- tively numerous among the shrubs, which indicates that the average flatwoods soil is not the richest in the world. A very instructive comparison of the soil conditions in the eastern and western di- visions of the flatwoods can be made by noting which species of plants are more abundant in one than in the other, as has already 140 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT been done in comparing the lime-sink and lake regions.* The spe- cies that are commoner in the western division are more charac- teristic of drier or more calcareous or more phosphatic soils, and nearly all of them grow in Georgia if not farther north; while those commoner eastward are more characteristic of cypress ponds, bays, scrub, and sour soils generally, and are of somewhat tropical affinities, some of them being confined to Florida and others nearly so. The former list includes more trees, vines, oaks, and legumi- nous plants, and the latter more evergreens, pines, palms, and Eri- caceae. In fact this plant list resembles that for the lake region about as much as it does that for the western division of the flat- woods, Fig. 28. Nearly treeless prairie in Brevard County about 7% miles west of Melbourne and four miles from the St. John’s River, looking northwest. The few scattered slash pines (Pinus Caribaea) are the outposts of the pine forests which extend eastward to the Indian River. Between this point and the St. John’s River there are practically no trees. Feb. 5, 1915. *The following seem to be more abundant westward: Pinus Elliottii, Liquidambar, Taxodium distichum, Quercus Virginiana, Magnolha grandiflora, Quercus nigra, QO. laurifolia, Ulmus Floridana, Juniperus, Magnolia glauca, Quercus cinerea, O, Catesbaei, Salix, Carpinus, Cornus florida, Rhus radicans, Parthenocissus, Gelsemium, Ampelopsis, Asimina pygmaea, Viburnum nudum, Stillingia aquatica, Viburnum obovdgum, Phoradendron, Quercus pumila, Cornus stricta, Tillandsia usneoides, Eupatorium compositifolium, Pontederia, Carphe- phorus, Saururus, Tillandsia tenuifolia, Juncus Roemerianus, Lupinus diffusus, Panicum hemitomon, Kuhnistera, Sagittaria lancifolia, Actinospermum, ané@ Sporobolus gracilis. The reverse is true of Taxodium imbricarium, Pinus Caribaea, Sabal Pal- GEOGRAPHY OF CENTRAL. FLORIDA I4I Population. As Osceola County is almost entirely in this region, its population is probably typical enough of the whole. The num- ber of inhabitants per square mile ranged from 1.7 in 1890 to 3.1 in 1910 and 6.1 in 1915, since when there seems to have been a de- crease, though the cutting off of Okeechobee County in 1917 makes exact comparisons between 1915 and 1920 impossible. In 1910 the proportion of native whites was 80.2%, the highest in central Flor- ida; of foreign whites 2.9% and of negroes 16.8%. The only incorporated places in the whole region were Kissimmee, with 4,221 inhabitants, St. Cloud, with 2,080 (all white, with a considerable number of Union veterans), and Taft, with 216 (mostly negroes). The leading religious denominations among the whites in 1916 were Baptist, Southern Methodist, Northern Methodist (?), Dis- ciples of Christ, Northern Presbyterian, and Catholic; and among the negroes Baptist, African Methodist, Northern Methodist (?), Primitive Baptist, and A. M. E. Zion. Agriculture. There are great variations in size and type of farms in this region, from small truck farms and orange groves such as are found all over central Florida, and larger’sugar-cane plantations near the edge of the lake region, to enormous cattle ranches with very little cultivated land, these last mostly near the Kissimmee River.* On account of these variations the bare statistics for Os- ceola County, or any similar area that we might have data for, give a rather imperfect picture of the conditions. metto, Pinus clausa, P. serotina, Gordonia, Ilex Cassine, Serenoa, Hypericum fasciculatum, Quercus myrtifolia, Pieris nitida, Cholisma ‘fruticosa, Bejaria, Spartina Bakeri, Tillandsia fasciculata, Sarracenia minor, Tillandsia recurvata, Doellingeria, Polygala cymosa, Anchistea, Dichromena latifolia, Polygala Rug- elu, Aletris lutea, Nymphaea, Sabbatia grandiflora, and Aristida spiciformis. *Most of the cattlemen depend mainly on free range, and own very little land, but there is one company with headquarters in the southeastern corner of Polk County that is said to have 226,000 acres fenced and to own 36,000 cat- tle. As in some of the grazing regions of the West, there have been some con- flicts between the cattlemen and the small farmers who are gradually encroach- ing on the free range, with occasional bloodshed. 142 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The farms in Osceola County average the largest in central Florida, and 4.3% of them were over 1,000 acres in extent in IQIO. If free range could be counted as farm land it would swell these figures greatly. The ratio of farm land to total area in the county increased from 0.6% in 1890 to 8.2% in 1910, and of improved land from 0.16% to 0.5% in the same interval. And although the average size of owners’ farms in 1910 was 244 acres and of tenant farms 234, farms operated by managers (doubtless niostly cattle ranches) averaged 2,667 acres. The status of agriculture in Osceola County since its establish- ment in 1887 is summarized in the following table: TABLE 7. Agricultural Statistics of Southeastern Flatwoods (Osceola Co.), 1890-1910. - 1889- 1899- 1909-1910 1890 1900) Total | White |Color’d Improved acres per inhabitant __------ 0.58 1.53} 1.05 1.25), 0.07 Iinhapibancs asp ere te ean ae eee 40.7 9.73] 18.3 15.6 | 10.3 Per cent of land anefarmp, 2-24. 2: 0.60 4.9 8:2) vasa (eee ee Per centcot land imiprovedy = == 22 48.00) 22) =a Expenditures per farm for labor ---_--| --~-- 113:92])) 11'3:00 (52222 | aes Expenditures) per. tarm? Tonsiced gees sens seete ae | Mae S000) sas | ae Annual value of crops per farm _____- | ( 593] Le ele ; 380! 647| - | Annual value of animal products ___-- |! 240| es weet as Expend. fertilizer per acre improved__- .97| 52 2.02) eee S| Expend. labor per acre improved ~--_~- per ede 94! 6:20) “LAs eee Value of crops per acre improved -----| _____ pee ae 31:00|) 222 eee ee ee ee ee ee ee ee ee ee ee ee Peer. ee ee > ni GEOGRAPHY OF CENTRAL FLORIDA 143 The marked variations between different census periods are not easy to explain, but are probably due largely to changes in the num- ber of orange groves and truck farms, which greatly affect the av- erage number of cattle, etc., per farm. At all three censuses, how- eyer, this region leads all the others in number of cattle per farm. The leading crops in 1909 were oranges, grape-fruit, “vegeta- bles,” corn, sweet potatoes, hay, and Irish potatoes; and the princi- pal animal product beef cattle. In 1913-14 the order of value of crops was oranges, grape-fruit, corn, sweet potatoes (grass) hay, Irish potatoes, egg-plants, cane syrup, beans, celery, cabbage, vel- vet beans (including hay), and watermelons; and in 1917-18 or- anges, corn, Irish potatoes, grape-fruit, “native’ hay, sweet pota- toes, syrup, cabbage, pineapples, cowpeas (and hay), and straw- berries. IO. THE EAST COAST STRIP: (Figs. 29-34. Soil analyses 46-51, ‘N, Z.) This includes the islands and barrier beaches of the east coast, ‘and a narrow strip of mainland averaging only a mile or two in: width, a total land area in Volusia and Brevard Counties of about 500 square miles. It extends both north and south of our limits a considerable distance without much change. The boundary be- tween this and the adjacent flatwoods is not always sharp, but is marked for a considerable part of the distance by a line of ancient dunes of white sand. Near the “head” (north end) of the Indian River the dunes are two or three miles back from salt water, with low hammocks and flatwoods east of them scarcely distinguishable from some much farther inland. And Merritt’s Island, although presumably built up in comparatively recent times by the gradual shifting eastward of barrier beaches, has large areas of flatwoods very similar to those of Osceola County, except for containing no long-leaf pine (a tree which is hardly ever found on islands of any kind). Geology and Topography. Geologically the region is very young, having probably nothing older than Pleistocene very near the sur- face. The material is mostly sand, but there are shells and shell fragments mixed ‘with it in many places, sometimes predominating and hardened into coquina rock (fig. 30). ; 144 FLORIDA GEOLOGICAL SURVEY—-1I3TH ANNUAL REPORT Shell mounds built up centuries ago by the aborigines are rather common along the lagoons, and many of them have been excavated for road-surfacing material (Fig 34). Flowing artesian wells, with more or less sulphurous water, can be had anywhere, and in some places the pressure is sufficient to run dynamos or other machinery. The ancient dunes west of the Indian River (fig. 31) are in some places about 50 feet above sea-level, but this is probably due largely to an uplift in comparatively recent times, for the modern dunes next to the ocean are much lower. The outer beach in Vo- lusia County is one of the most noted natural automobile race- courses in the world, and speeds of 156 miles an hour have been recorded there. The Indian River and other shallow salt lagoons behind the barrier beaches are navigable for small vessels, and in re- cent years they have been connected by dredging canals through intervening marshes and strips of sand, so that there is now an in- side passage all the way up the coast to South Carolina. There is practically no tide in these lagoons, on account of the inlets being small and far apart. Fig. 29. Scene in Turnbull Hammock, a typical low hammock, about a mile west of Daytona, Volusia County. By E. H. Sellards, May 21, toto. Soils. The soil survey of the “Indian River area,” published in 1915, covers most of Merritt’s Island and the neighboring barrier beaches, and a little of the near-by mainland, giving a very typical ° . GEOGRAPHY OF CENTRAL FLORIDA 145 Fig. 30. Looking north along rocky shore of Mosquito Lagoon, or North Indian River, about a mile north of New Smyrna, Volusia County. (The rock is coquina.) May 17, 1900. Fig. 31. Looking east-southeast on old dunes about a mile west of Mims, Brevard County, showing spruce pines of two different ages, the younger prob- ably having come up since the last fire. Feb. 9, 1915. 146 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT section of the soils of the east coast. Separating the Brevard County portion from that south of our limits, we find that the soils are referred to. the ‘St. Lucie,” ‘“‘Portsmouth,” “‘Palm Beach,” “Parkwood,” “Norfolk,” and “Gainesville” series, and the prevail- ing texture classes are sand (over 50% without the coastal beach), fine sand, tidal marsh, fine sandy loam, coastal beach, muck, and | =e 7 Fig. 32. Small pool in vast damp calcareous palm savanna near head of Newfound Harbor on Merritt’s Island, showing cabbage palmettos and switch- grass (Spartina Bakert), Feb. 7, 1915. Fig. 33. Looking north along crest of outermost dunes, 15 or 20 feet high, about a mile south of Melbourne Beach, Brevard County. Vegetation mostly saw-palmetto and sea-oats. Feb. 4, 1915. GEOGRAPHY OF CENTRAL FLORIDA 147 clay laam. Old dunes with scrub vegetation, mapped as “St. Lucie sand” and “St. Lucie fine sand,’ make up a trifle more than a third of the total. A few mechanical and chemical analyses are given in the general chapter on soils. rs Sf 1 ; ' icant Patt 22222 | eee - 852 338] - | | Annual value of animal products __--- i 66), 2 S228 (eon Expend. fertilizer per acre improved-_-_-| 3.68 5:26) “1S-15|— 82eee | see Expend. labor per acre improved ~----- ib, tee = 9:48 |e 20:10 |e | ae Value of crops per acre improved ~--_-~- ee oe (2120.50)5 eae |e The number of improved acres per inhabitant is low, on account of the large town population, the importance of other industries than agriculture, and the intensive farming. The farms average © the smallest in central Florida, but have the most valuable land and buildings. Live-stock is relatively unimportant, the rather large number of beef cattle per farm being probably due to a few cattle ranches in the flatwoods part of Brevard County. (It is a curious fact that neither State nor government censuses have ever found any sheep in this county.) The number of work animals averages less than one per farm, showing that some farms are worked by hand labor only. The expenditures of all kinds per farm an per acre are very high, but so are the profits, in favorable seasons. GEOGRAPHY OF CENTRAL FLORIDA 153 The leading crops in Brevard County in 1909 were oranges (over half the total), grape-fruit (about one-eighth), “vegetables,” sweet potatoes, Irish potatoes, pineapples, corn, cane syrup, and hay. In 1913-14 oranges (nearly two-thirds), grape-fruit (nearly one- fourth), (string?) beans, sweet potatoes, Irish potatoes, tomatoes, watermelons, cucumbers, strawberries, cabbage, peppers, guavas, bananas, onions, Japanese persimmons, egg-plants, and lettuce. In 1917-18 oranges (about five-sixths), grape-fruit, Irish pota- toes, velvet beans, string beans, tomatoes, sweet potatoes, corn, sorghum, dasheens, cabbage, lima beans, cowpeas, onions, and grass hay. The average farm in 1909 produced only 43.3 gallons of milk, 4.5 pounds of butter (and sold 1.5, leaving only 3 pounds per farm family per year), 25 chickens, 86.5 dozen eggs, and about one cow and one hog, but led all the rest of central Florida many times in honey, producing 72.2 pounds per farm. GENERAL FEATURES Under this head the various geographical features of central Florida will be discussed by topics, and each subdivided by regions as far as is possible or desirable. This naturally involves some re- iteration of facts already brought out in the regional descriptions, but the two treatments supplement each other just as the ground plan and elevation of a building do, and this second part is best adapted to illustrating general principles.. It will also be useful to persons who are interested primarily in one thing, such as min- eral resources, water, soil, climate, timber, population or agricul- ture, and do not care to look through ten regional descriptions to pick out the desired information. The treatment begins with the structure of the earth’s crust, which as far as we know has not changed materially for ages, and proceeds to topography, which changes a little more rapidly— though almost imperceptibly in a human lifetime—to soil and cli- mate, to vegetation—which is changing slowly all the time even where man does not interfere with it—and finally to such very changeable features as population and agriculture. Soil, which is the top of the earth’s crust, might perhaps most logically be treated immediately after stratigraphy, but in the area under considetation its character seems to depend as much on topography as on the na- ture of the underlying rocks, so topography is taken up first. A complete account would treat every topic historically as well as geographically ; but the changes in stratigraphy, soil, topography and climate are so slow, and exact information about them so mea- ger, that it is hardly worth while to speculate about them at all in a work of this kind. Vegetation changes more rapidly, and in the last 25 years there have been published hundreds of pages on the supposed trends of development, or “succession,” of vegetation in various parts of the country, particularly the Middle West. But in this report vegetation -is regarded as essentially static, except for the depredations of civilized man and some comparatively short cycles of succession after fire in pine lands, scrub, hammocks, etc., which will be alluded to at the proper places. Population and agriculture have developed from almost nothing to their present stage in less than 100 years, and we have abundant 154 ° a a eS GEOGRAPHY OF CENTRAL FLORIDA 155 information about them in census reports, for several decades past. However, previous to 1887 most of the counties in central Florida were so large that statistics based on them give a very imperfect idea of conditions in any one region, so that the statistical tables in the foregoing pages begin with the census of 1890. But some data from earlier censuses for the area as a whole are given in the following chapters. And even if the counties had been reduced to their present size much earlier, the information in the older cen- suses is considerably less detailed than that in recent ones, and the remote past does not concern us as much as the recent past anyway. Some of the tables that follow contain the same ratios and per- centages already given in the eight regional tables, but they are arranged in an entirely different manner. In the preceding tables one could follow the development of any phase of agriculture in a given region through three census periods, while in the following ones conditions in different regions at the same time are tabu- lated side by side to illustrate the influence of different enyiron- ments. There are also a number of additional tables to illustrate conditions whose historical aspects are unknown or not considered, such as soil analyses, climatic data, a tree census, illiteracy, schools, religious denominations, relative importance and yield per acre of different crops, and animal products of farms. In all the statistical tables where different regions are contrasted the highest ratio or percentage for each feature is printed in heav- ier type and the lowest in italics (unless two or more numbers are so nearly equal that it is impossible to decide between them); a scheme which assists materially in picking out the salient features of each region and also in locating the best and worst places within our area for any particular thing, such as large and small farms, farm machinery, mules, sheep, bees, cotton, oranges, sugar-cane, etC.; SURALIGRAPH Y Although a great deal of geological work has been done in this and other parts of Florida in recent years, our knowledge of strat- igraphic details is still very imperfect, on account of the scarcity of outcrops of rocks that can be identified by their fossils or other- wise. And even if deep wells had been drilled on every square mile and all the strata penetrated by them identified and measured it would still be quite a problem to map the formations, because they 156 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT are in most places so nearly horizontal that they make very small angles with the comparatively level surface, so that their edges must always be ill-defined. The oldest formations known in central Florida appear at the surface in the northwestern quarter, and dip gently southward and eastward from there. The oldest rock is a nearly pure limestone of uppermost Eocene age, known now as the Ocala formation (per- haps a continuation of the Marianna limestone of West Florida, the St. Stephens limestone of southwestern Alabama, and the Vicksburg and Jackson limestones of Mississippi), which is exposed about as . far east as Ocala and Sumterville and as far south as Tarpon Springs. Most of the caves in our area are in this formation, be- cause it is almost the only limestone pure enough and thick enough and sufficiently elevated above the ground-water to form caves. It is quarried in several places (fig. 12), either for road-surfacing material, for fertilizing purposes, or for burning into lime. The eastward dip of this formation seems to be very slight, for it has been encountered within 200 feet of the surface in wells drilled near _ the east coast. Next above it is the Tampa limestone, of Oligocene age, in our area principally confined to Hillsborough County. Its exposures are very limited and more or less silicified, so that it is of little ec- onomic importance. The Miocene area of central Florida seems to be approximately co-extensive with the lake region, but ex- posures of the strata are very scarce. Perhaps the best one is the limestone bluff at Rock Spring (fig. 18) in the northern part of Orange County, where the first Miocene fossils in Florida were found.* The Pliocene is represented by the Nashua marl along the St. John’s River between Palatka and Sanford, and by the hard rock and pebble phosphate deposits overlying the Eocene and Oligocene in patches west of the lake region. The Pleistocene includes some shell marls near the coast and rivers, and probably much if not most of the peat and surface sand. Most of the surface is covered by fairly homogeneous unconsol- idated sand averaging several feet in thickness. A generation ago this was commonly regarded as a Pleistocene deposit, and called the Columbia formation; but the trend of opinion in recent years has *See references on page 120. GEOGRAPHY OF CENTRAL FLORIDA 157 been toward treating it as a mere product of weathering froin the sandy clay or rock underlying it. There are some objections to both hypotheses, however, and the question must be regarded as still unsettled. ECONOMIC GEOLOGY The most important mineral resource of central Florida is phos- phate rock, which is of two principal kinds, occurring in distinct regions. The “hard rock,” which is the highest grade, contain- ing usually from 77% to 80% of tricalcium phosphate, occurs in deposits of supposed Pliocene age in the lime-sink region, chiefly in Citrus County and the western part of Marion (and north of our present limits in Alachua). A variety known as “plate rock’’ was formerly mined near Anthony, which is in the same region but east of the Middle Florida hammock belt. A low-grade by-product known as soft phosphate was formerly discarded in mining, but is now saved in some places and used as a fertilizer in its raw state. “Land pebble,” containing usually from 65 to 77% of tri- calcium phosphate, occurs in the Bone Valley formation (Pliocene), which covers considerable areas in the flatwoods south of Lakeland and Plant City. A variety known as “river pebble’’ was formerly dredged out of the Peace River, chiefly south of our present limits. Both the principal types of phosphate deposits are of considerable scientific interest on account of containing many well-preserved | vertebrate fossils, representing sharks, crocodiles, armadillos, horses, elephants, mastodons, whales, etc. In 1913, the last full year before the export of phosphate was interrupted by the great war, there were 14 companies mining hard rock in Florida (some of them north of the limits of this report, however), and 16 mining pebble phosphate. The total reported production for the State in that year was 489,794 long tons of hard rock and 2,055,482 of pebble, together valued at $9,563,084, or about the same as the farm crops of central Florida in 1909. The hard rock, being of higher grade, brings a higher price, and the only reason the pebble can be marketed in competition with it is probably that the latter can be mined more economically, on account of the deposits being more continuous, the use of hydraulic mining meth- ods, etc. Much of the hard rock at present mined is below ground- water level and has to be taken out with a dredge. Nearly all the 158 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT hard rock and about half the land pebble is exported to Europe in normal times.* Since the war the business has picked up again, and several new mines have been opened in the flatwoods or pebble district, and more attention is being paid to the soft phosphate formerly wasted in the hard rock district. Another by-product, chiefly from the pebble district, is a sandy rock containing too little phosphorus for ferti- lizing purposes, but making a pretty good road-surfacing material.7 Limestone is probably next in importance to phosphate in our area. It has long been quarried in several places around Ocala, and recently in southeastern Citrus County. Some of it is burned for lime and some used for road material, and in a few places it has been sawed into blocks and used for chimneys, walls, etc. A variety known as coquina, composed of shell fragments rather loosety ce- mented together, occurs in a few places along the east coast, and has been used locally for building purposes. Bog iron ore is said to have been mined and smelted near Levy- ville in Levy County. during the Civil War, for the Confederate government. Deposits of kaolin or porcelain clay are being worked on the south side of Lake Harris in Lake County, and brick is made at Whitney in the same county, and formerly at Brooksville and a few other places. Sandy clay suitable for road surfacing is widely dis- tributed, particularly in the lake region. *The exportation of so much valuable fertilizing material has been viewed with alarm, by some writers, but it is a natural result of the normal working of the. law of supply and demand. Substantially the same arguments might be used against shipping coal, iron or lumber from states that have them to those that lack them; but if other states or countries need these things and have something of greater present value to us to offer in exchange it is per- fectly good business to make the trade. It seems to be generally true of min- eral fertilizers that the soils near where they occur are pretty well supplied with that particular substance, so that they have to be transported a consid- erable distance to do the utmost good. By sending our phosphate to Germany, Nebraska or California in exchange for potash both sides are benefited, pro- vided the cost of transportation, etc., is not too great. tFor a discussion of the Florida phosphates see papers by Dr. E. H. Sellards in our Fifth and Seventh Annual Reports, and U. S. Geological Survey Bul- letin 604, by G. C. Matson (1915). The first and last of these contain many references to earlier papers, which need not be cited here. GEOGRAPHY OF CENTRAL FLORIDA 159 Sand abounds nearly everywhere, and the pure white variety, such as characterizes the scrub, ought to be well suited for the man- ufacture of glass. Sand-lime brick is made at Lake Helen, in Volu- sia County. The marl in low hammocks and the shell mounds are used to some extent for road-making. Gypsum is found in a few low ham- mocks, but apparently not in commercial quantities, unless in the western part of Sumter County.* Peat abounds in the lake region and occurs in most of the others, but has been little used as yet. It was discussed at considerable ‘length in the Third Annual Report, which the interested reader can consult for details. Artesian water is easily obtained anywhere in the area, but it does not rise above the surface except near the coast and larger rivers and lakes, and at a few other places at low elevations. The highest artesian pressure found in the State is along the Indian River in southern Brevard County, where the water rises about 50 feet above sea-level, and is used in a small way for running dy- namos, etc. Most of the water from deep wells contains consider- able salt, lime, sulphur, etc., but hardly ever enough to make it un- fit for drinking purposes, except in some places near the upper St. John’s River, where the salt content is excessive. In the lime-sink region, however, the water. is often too “hard” for boiler purposes, and water-softeners are used by the railroads. Rain-water cisterns for private residences are used where the water is too deep to be reached by dug wells, as in the lime-sink region, or too highly min- eralized, as in some places along the east coast. Force-pumps are also frequent in the lime-sink region and the higher parts of the lake region, while ordinary suction pumps prevail in the flatwoods. / *The latest account of the Florida gypsum deposits, containing references to important earlier papers, is by R. W. Stone in “Mineral Resources of the United States for 1918” (U. S. Geological Survey), part 2, pp. 293-206. 160 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT In recent years several test wells have been put down in the hope of striking oil—one in Sumter County reached a depth of 3,080 feet before it was abandoned—but without success as yet.* TOPOGEAPELY. The subject of topography is not very well adapted to ‘syste- matic or statisticaly treatment, especially in a region where so little is known of the processes that produced the configuration of the surface as is the case here. In most civilized countries the greater part of the topography is evidently the result of either glaciation or normal erosion or easily understood variations thereof, and persons skilled in such matters can trace the developmental cycles with con- siderable satisfaction; but surface erosion is probably an insignifi- cant factor in our area, on account of the low altitude of some parts and the very sandy soil or subterranean drainage of other parts, and the origin of some of our topographic features is still an un- solved problem. The treatment adopted here, therefore, is neces- sarily somewhat empirical. Uplands. Although the topography of central Florida seems to have been shaped mostly by other means than surface erosion, as just stated, the steepest average slopes are generally in the most el- *It is a curious coincidence, perhaps not easily explained, however, that all or nearly all the successful oil wells in the United States are in regions where there is more rain in early summer (April to June) than in late summer (August to October), and where the native vegetation is either predominantly deciduous or treeless; a combination of conditions not found in Florida—-theugh approached in the extreme northwest of the State—or anywhere near the coast northeast of here. According to an article by John K. Barnes in the “World’s Work” for April, 1920, the cost of drilling for oil in the United States in recent years has greatly exceeded the value of the oil produced. So apparently we would be better off financially if no oil wells had ever been drilled! TAt first thought it might seem impossible to apply any sort of statistics to topography. But in areas covered by reasonably accurate topographic maps one could at least estimate the average slope of the surface of a given region by drawing straight lines across the map in various directions, counting the number of contours crossed in a unit distance, averaging the results, and apply- ing a factor of about three-fourths to make a correction for the fact that most of the contours will not be intersected at right angles. It would also be pos- sible to estimate the areas lying between sea-level and 50 feet, 50 and i00 feet. etc. ee ta GEOGRAPHY OF CENTRAL FLORIDA 161 evated portions, as in most other parts of the world. As far as we know at present the highest point in Florida is the summit of Iron Mountain, about two miles north of Lake Wales, in Polk County, which is said to be 324.3 feet above sea-level.* There are some very similar high steep hills in the southern part of Lake County, particularly between West Apopka and Clermont.;+ Cler- mont is 105 feet above sea-level, and some of the hills northeast of there must be 150 if not 200 feet higher; and from at least one of them one can look directly westward over three lakes at once. Col. Charles Ledyard Norton, in his Handbook of Florida (3d edition, 1891, pp. 45, 274), referring to Lake County, says: “In point of fact, the highest elevations in the State, nearly fiye hundred feet above tide-water, are found in this county ;” but in the light of present knowledge that appears to be considerably exaggerated. The high hills of the Hernando hammock belt have been noted . in the description of that region; and’there are points in the lime- sink region and Middle Florida hammock belt nearly if not quite 200 feet above sea-level. The Hernando hills commonly have clay near the surface, at least on their slopes (fig. 15), and Iron Moun- tain and some of the hills near Ocala are a little rocky on top, but those of Lake County and many others have summits and slopes alike covered with deep sand. Some of these sandy slopes are re- markably steep, about 30°, but the outlines of the hills are smooth and rounded, as if the wind slowly and imperceptibly filled up with *Early in 1915 the corporation owning this “mountain” and considerable adjoining land advertised it to be 385 feet high, but this seems to have been based on an erroneous assumption as to the altitude of points on the recently completed branch of the Atlantic Coast Line Railroad, which passed a little west of the property. Revised figures seem to have been obtained from the railroad a little later, and in the summer of the same year the corporation published a small topographic map of the property, giving 324.3 feet as the altitude of the summit, which seems reasonable. This was soon accepted by the U. S. Geotog- ical Survey as the highest point in the State, and so published in the annual “New York World Almanac, beginning with the issue for 19017 (p. 67). About the same time, however, it became known that Iron Mountain has a close rival in a point near Round Lake in West Florida, 322 feet above sea-level. (See our 11th Annual Report, 1918, p. 81, and 12th, p. 53.) +See E. A. Smith, Tenth Census U. S. 6:237. 1884; N. S. Shaler, Bull. Mus. Comp. Zool. Harvard Coll. 16:151. 1890; Harper, Torreya 11:65. 1911; and fig. 19 of the present report. ‘ 162 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT-. sand any irregularities that might tend to be formed by erosion, burrowing animals, uprooted trees, etc.* Lake basins. The hills of the lake region are interspersed with many saucer-like basins of various sizes and depths, some dry and some containing water. Just how these basins were formed is an unsolved problem. Some have ascribed them to solution and some to the action of strong ocean currents when the land was sub- mergedy but neither explanation fits all the facts. Basins of some- what similar outline but usually shallower are very common in the lime-sink region, and as some of those are known to have been formed by a sudden caving in of the roof of a subterranean passage and the subsequent smoothing of the sides by rain and wind, it may be assumed that most of them originated in some such way. But in the lake region sinks, caves, and other solution phenomena are very rare, and no one seems to have ever observed the beginniug of one of the basins in question. They could hardly have been scooped out by the wind or the elevations around them piled up by waves, either, for many of the hills have a hard clay substratum in them considerably above the bottom of the basins. And lakes a short distance apart often differ considerably in elevation, show- ing that they rest on an irregular surface of clay or some other impervious material. Lime-sinks. This term is used for several different things. ‘Some lime-sinks are small dry sandy basins of the kind just de- scribed, with no visible outlet, while others have rock outcropping in them and a hole at the bottom through which water escapes, and some have steep banks and are more or less permanently filled with water, which is usually bluish from dissolved limestone. The dry sandy type is most common in the lime-sink region and the *TIt seems probable that the wind has had a much larger share in shapinz the topography of the uplands of peninsular Florida than is commonly realized. Although the sand does not move noticeably on windy days, except in culti- vated fields (and even there there is little evidence of drifting after the wind dies down), in the course of centuries any minor irregularities must be pretty thoroughly smoothed out. tSee pages 150-156 of the paper on the topography of Florida by Prof. Shaler, cited on the preceding page. ee ee ee ae ee ee ee ee ee eS ee ee ea oe ee ee ee GEOGRAPHY OF CENTRAL FLORIDA 163 rocky type in the hammock belts. Those with permanent water in them are apparently more common in northern than in central Flor- ida, but examples can be seen near Sumterville and Lacoochee. In the Hernando hammock belt some of the intermittent lakes or prairies have a small rocky lime-sink at one end or edge, through which the water drains off (fig. 16). There are said to be some lime-sinks on the west side of Lake George, which the writer has mapped as being in the lake region, but not yet explored. Caves. Limestone caves are not uncommon in and near the hammock belt in Marion County, and there are a few small ones in the southeastern part of Citrus County,* hardly large enough to contain stalactites and stalagmites or to be easily entered. Natural bridges in central Florida are of two types, which might be called wet and dry. The former is the commonest, and is caused by a stream entering a subterranean channel made by solution of limestone, which it may follow anywhere from a few rods to a few miles. It is of course impossible to go under such a bridge, and sometimes one cannot even be sure where a disappearing stream emerges again. Bridges of this type are reported near Homosassa and Tarpon Springs, and there must be many unrecognized ones made by small streams. A rarer and very different type is formed by blocks of limestone falling against each other when the ground under them settles irregularly from the slow solution of still deeper calcareous strata. A few of this kind can be seen in the neighbor- hood of the caves of southeastern Citrus County, just mentioned. Flatwoods. Most of the country within twenty miles or so of the coast on both sides of the peninsula is essentially level, except where shallowly dissected by streams. The dissection is most pro- nounced near the, Peace and Alafia Rivers, and at certain points near the coast where the general level of the country is 20 or 25 feet above the sea, as at Eau Gallie, Melbourne, and St. Petersburg. The flatness is probably due to the fact that the sand and underlying materials were deposited on a nearly level ocean bottom, and have not been elevated high enough or long enough to be eroded much. Beaches and dunes. The whole Atlantic coast of central Flor- ida and the Gulf coast in Pinellas County, are bordered by rather *For additional information about these see R. M. Harper, Am. Fern Journal 6:68-81. 1916; Natural History (formerly American Museum Jovraal) 2:201. 1919; J. K. Small, Jour. N. Y. Bot. Gard. 21 :34-37. 1920. 164 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT narrow barrier-beaches, with lagoons one to five miles wide be- tween them and the mainland. On these beaches the wind has piled up low sand dunes, rarely exceeding 10 or 15 feet in height, which seem to be moving very little at the present time. (Dunes are not as well developed in Florida, or anywhere in the tropics, apparently, as they are north of latitude 40°, perhaps because in our climate the vegetation covers the sand too quickly for the wind to disturb it much. The wind has considerable force on the east coast, however, as is indicated by the pines leaning inland at an angle of ten degrees or more in many places. ) : A mile or two back from the shore, at many places along’ the east coast and also near Cedar Keys, Bayport, and probably else- where on the west coast, are old dunes of thoroughly leached white sand, which must have been formed at a time when the land stood a little lower and the peninsula was narrower, for dunes do not seem to be forming at present more than half a mile from the outer- most beaches. The absence of such features farther in the interior would seem to indicate that the land has not been depressed much below its present position for a very long time; long enough for the wind to level any dunes that might have existed and for the sala- manders and other animals to mix the pure sand with the darker sub-soil.* Other shore features. The absence of barrier beaches along the Gulf hammock coast has been commented on in the description of that region. It seems to be correlated with the very gentle slope of the ocean bottom along there, which keeps the waves from beat- ing on the shore just as if there was a barrier beach a few miles out; but just why that type of shore with a minutely irregular marshy border, should be confined to the Gulf hammock region is an un- solved problem. Very likely if there was as much wind on the Gulf — coast as on the Atlantic coast the shore would be different; but there is evidently not, for the pines grow perfectly erect near the Gulf coast, instead of leaning inland as most of them do on the other side of the peninsula. < *The many patches of scrub (described farther on under soils and also under vegetation) in the lake region are thought by some to represent old dunes, but in many or most cases their topography seems to preclude any such explanation. GEOGRAPHY OF CENTRAL FLORIDA 165 The larger lakes have sandy beach ridges on their more exposed shores, and sand-bars forming across their embayments, as in lakes with sandy shores the world over, but none of our lakes are large enough to have any perceptible development of dunes around them. Wave-cut cliffs are exhibited on a small scale in the clay bluffs on the southeast side of Lake Weir, and perhaps on other lakes. Minor topographic forms. In many places close to the Indian River, St. John’s River, Tampa Bay, and other navigable waters there are shell mounds several to many feet high and usually an acre or less in extent, which are commonly supposed to be Indian “kitchen middens,” though the possibility of some of them having been partly built up by raccoons or other four-footed animals does not seem to have been wholly eliminated. Some are composed chiefly of oysters and others of other mollusks, especially along rivers, where there are no oysters. One on the east side of the Indian River about opposite Melbourne (fig. 34), which is being excavated for road material (a fate shared by many others), shows about ten feet of shells, nearly all Chione cancellata, a small clam- like bivalve, resting on yellowish sand. There are thin layers of hu- mus among the shells every few inches, presumably indicating that the growth of the mound was frequently interrupted long enough for a little vegetation to grow on it. Some of the mounds have more sand than shells in them, and must have been formed in a somewhat different manner; but the subject has not been suf- ficiently investigated. Terraces (?). The boundary between flatwoods and uplands is sometimes gradual and sometimes rather abrupt, as for example at or near Bronson, DeLand and Lake Helen. In recent years these abrupt scarps have been regarded by some geologists as Pleis- tocene shore lines, or terraces,* but they do not appear to be contin- uous for any great distance, as terraces should be, and they lack some of the characteristic features of shore-lines, such as dunes. *See Matson & Sanford, U. S. Geol. Surv. Water Supply Paper 319 (1914), Pp. 31-35, 210-211, and map (plate 5); and comment on same in Geog. Review 4 :224-225. IQI7. 166 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT HY DROGRAP HY -OR.DEAINAGE Lakes. There is perhaps no essential difference between a lake and a pond, but the former term, in Florida as elsewhere, is usually applied to the larger and more permanent bodies of fresh water. No close estimate of the number of lakes in central Florida has been made, but it is certainly in the thousands. The majority are in the lake region, as might. be expected, but they are common in several other regions, particularly the eastern division of the flatwoods. The largest are Lakes George, Apopka and Kissimmee, each cover- ing something like 100 square miles. The smaller ones, some of which are only a few acres in extent (and not as wide as some parts of the St. John’s River) are approximately circular and have no visible outlets, being merely depressions extending below the ground-water level. But they can hardly be called stagnant, for the water is doubtless constantly seeping through the sandy soil in the direction of the nearest river. The larger lakes are irregularly shaped and have streams flowing into or out of them, or both, sev- eral being simply wide places in the St. John’s and Kissimmee Riv- ers. Few soundings have been made in our lakes, but judging from the slope of their shores the deepest may not be over 50 feet deep. Asa rule they do not fluctuate more than two or three feet in the course of a year. A few which are connected with sink-holes may be lowered suddenly at long intervals in the manner described by Dr. Sellards in the 3rd and 6th Annual Reports, and those on the St. John’s River of course share the fluctuations of that stream, which however are only a few feet. Lake George, being just about the head of tide-water on the St. John’s, of course cannot rise much. but Lake Harney, about 200 miles by water from the mouth of the river, is said to have an extreme fluctuation of about seven feet. Besides the seasonal variations in level, some of the lakes among the uplands are evidently lower now than they were a generation ot so ago, as shown by the encroachment of young long-leaf pines or their shores.* This may be due to a permanent lowering of the ground-water level by numerous flowing artesian wells bored at lower elevations, but the matter has not been sufficiently investt- gatéd. *See 3d Annual Report, p. 266. GEOGRAPHY OF CENTRAL FLORIDA 167 The water of most of our lakes is comparatively clear, and some in Seminole and Orange Counties are used for city water supplies in preference to the hard and sulphurous artesian water. The clearest lake of any size in central Florida is probably Lake Weir, in the southern part of Marion County. Two or three small coffee- colored branches enter its eastern end and tinge the water there a little, but its western end, which is in the lime-sink region, is se clear that one can see the bottom where it is several feet deep. This is probably correlated with a small amount of limestone in solution, for a species of mussel (Unio Cunninghami) is common in the western part of the lake. Ponds and swamps. Shallow ponds, which may dry up com- pletely in dry seasons, varying in size from perhaps one to a hun- dred acres, abound in the flatwoods and are fairly common in the lime-sink region. They nearly always have considerable vegetation in them, sometimes only maiden-cane, wampee, bonnets, and other herbs, but more often bushes or trees or both. (Additional details are given in the chapter on vegetation. ) | The various types of marshes and peat bogs have been pretty fully discussed in the Third Annual Report, and some of them will be referred to farther on under the head of vegetation. The same might be said of swamps, which are not very extensive in central Florida. Springs. There is perhaps no equal area in the United States that has more large springs than central Florida. Most of them are the points of emergence of subterranean creeks or rivers, whick usually come up through one or more irregular openings in the bot- tom of bowl-like basins. They are most common in the lime-sink. region and near its edges, but there are also several in the Gulf hammock region and a few in the lake region, particularly near the St. John’s River and on the edges of the great Wekiva River swamp in Seminole and Orange Counties. Silver Spring (fig. 8), a few miles east of Ocala, is one of the largest springs known, about 200 feet wide and 35 feet deep. One discharge measurement made of it gave about 150,000 gallons a minute, or 333 cubic feet a second, and another, probably some dis- tance down stream, about twice as much. The stream or “run” issuing from it is so large that small steamers from the Ocklawaha River can come right up into the spring; and this has been a fa- 12 168 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT vorite trip for sight-seers for many years. The spring is also used for bathing. Blue Spring in the same county near Juliette has nearly as large a flow, but does not make a navigable stream. Other well known springs in the same region are Weekiwachee Spring in. Hernando County and Sulphur Spring near Tampa. The former is rather unique in being in the midst of a large area of scrub. In the Gulf hammock region there are large springs at the head of the Waccasassa, Crystal, Homosassa (fig. 7) and Chessahow-: itzka Rivers. In the lake region the best known springs are DeLeon. and Blue Springs in Volusia County, Palm and Hoosier Springs in the western part of Seminole County, Clay or Wekiva Spring, the main source of the Wekiva River, Seminole Spring, near Sorrento, and Bugg Spring, near Okahumpka. Rock Spring, in the north- western part of Orange County (fig. 18), differs from most other Florida springs, and resembles some in the Appalachian Valley, in that the water rushes out audibly from the base of a cliff, instead of welling up from the bottom of a basin. The water of all these large springs is highly charged with cal- cium carbonate, and is very clear, with a slight bluish tinge. Its temperature usually ranges between 70° and 75° the year round.* Some have a very perceptible sulphurous odor too, particularly those in Seminole County. Orange, Silver, Palm, Clay and Sulphur Springs and perhaps others are used more or less for bathing pools. Silver Spring, the largest and most accessible of all, is provided with glass-bottomed boats, from which the bottom can be viewed. The water of Green or Espiritu Santo Spring in Pinellas County and one or two smaller ones is believed to have medicinal virtues. There are a few salt springs near the St. John’s River and some ot its tributaries, but little is known about them. Streams. The streams of. central Florida may be divided, chiefly on a basis of size, into branches, creeks, runs and rivers. The branches, generally speaking, are those small enough to stop running in dry weather, and they are not as numerous as in the northern part of the State, where the effects of erosion are more ey- ident. They are mostly clear or slightly coffee-colored. The creeks flow throughout the year, and vary from a few feet to several yards *The temperature of a large spring in any part of the world, unless it is a thermal spring, is usually very close to the average annual temperature of the locality, so that it seems warm in winter and cold in summer, by contrast. GEOGRAPHY OF CENTRAL FLORIDA 169 wide. They nearly all originate in and are bordered by swamps, and are decidedly coffee-colored. The outlets of the large springs, varying in size from creeks to small rivers, are commonly called runs. They are clear and bluish like the springs, but usually do not flow more than a few miles be- fore they lose themselves in some larger coffee-colored stream or in the ocean. Helena Run, in Lake County, is said to be transparent when it flows eastward from Bugg Spring into Lake Harris, and coffee-colored when it flows westward from the lake toward the Withlacoochee River.* The larger rivers are all coffee-colored in their natural state, there being no naturally muddy water in peninsular Florida; but a few like the Alafia and parts of the Withlacoochee are kept turbid most of the time by washings from the phosphate mines in their vi- cinity. The rivers are as a rule sluggish, because the highlands of the peninsula are so narrow that streams originating in them get down into the flatwoods before becoming large enough to be called rivers. There are, however, a few places where ledges of rock form rapids, particularly in the Gulf hammock region within a few miles of the coast. One such place on the Withlacoochee, about ten miles from its mouth, and the same distance below Dunnellon, has been made the site of a hydro-electric plant (fig. 6), with a 20-foot dam, furnishing power to Dunnellon, Brooksville, several phosphate mines, and even an orange packing house in Sumter County. There is another such plant on the Hillsborough River a few miles from ~ its mouth (in what is regarded as a part of the lime-sink region). which however is said to be used only for emergencies, as it cannot furnish enough power for the whole city of Tampa. There is said to be a spring near Sumterville which furnishes power for a mill.+ *See 3rd Ann. Rep., p. 281. +According to U. S. Geol. Surv. Water Supply Paper 319, p. 406. There has been some talk of damming up other springs in central Florida for power pur- poses, but just why a spring should be selected for that purpose, rather than the same stream farther down where it is larger, is not clear, unless it is merely a manifestation of a mania some people have for destroying or defacing oiiects of natural beauty. Some attempts of this kind in West Florida are said to have had the unexpected result of merely forcing the water to find a new outlet. through the cavernous limestone. 170 FLORIDA GEOLOGICAL SURVEY—I 3TH ANNUAL REPORT Most streams in our area are too short or too near sea-level ta fluctuate much with the seasons, and besides the excess of rainfall in late summer (see chapter on climate, farther on) tends to coun- terbalance evaporation and thus keep their flow uniform, so thar floods are practically unknown. The St. John’s River, the largest, is unique in several ways. It rises in great marshes or wet prairies, resembling the Everglades, near the southern edge of Brevard County, within 25 miles of the ocean in a direct line and not ovet 20 feet above it at low water, and flows northward approximately parallel to the coast for over 200 miles, with a fall of only about an inch to the mile. In the latitudes under consideration it is much narrower than it is where influenced by the tide, except where it expands into lakes. Lake Monroe, between Sanford and Enter- prise, is said to be five feet above sea-level, with a maximum depth (at low water?) of only eight feet. Between there and Lake Har- ney, the next lake above, the river is said to have an extreme fluc- tuation of seven feet, which is perhaps the greatest of any stream in central Florida, unless it is exceeded by the Peace or the Alafia River; but that of course is very little compared with some of the rivers farther north. | The Ocklawaha* and Withlacoochee Rivers resemble the St. John’s in flowing northward most of their length, a phenomenon that deserves more attention from physiographers than it has re- ceived. SOMES The soils of central Florida, although prevailingly sandy, are considerably diversified within certain limits. Alluvial and red clayey soils are scarce, but we have soils ranging in chemical com- position from nearly pure calcium carbonate and highly phosphatic to nearly pure silica and peat. The correlations between soil and vegetation in this part of the country are so close, and the natural vegetation nearly everywhere so prominent, that most previous attempts to classify Florida soils *In recent years this has often been spelled “Oklawaha,” presumably by the same sort of people who write “Suwanee’ for Suwannee, “Hillsboro” for Hills- borough, “Okechobee” for Okeechobee, etc., but this should especially be dis- couraged, for it tends to give an erroneous impression of the first syllable. (For the benefit of strangers it might be well to explain that the main ac- cent is on the third syllable. Also that Kissimmee is accented in the middle.) i i GEOGRAPHY OF CENTRAL FLORIDA 7s have described most of them in terms of vegetation, such as pine land, hammock, swamp, scrub, and prairie ;* and it is indeed diffi- cult to avoid mentioning the vegetation in describing our various soil types. The leading texture classes of soils in each region, as far as known, have already been noted in the regional descriptions. In the following pages the principal soil types of the whole area will first be classified roughly by water-content, color, etc., and then some mechanical and chemical analyses presented. As in all class- ifications of natural objects or phenomena, there are all possible gradations between adjacent categories, so that no sharp lines can be drawn; and a few types difficult to classify are not mentioned at all. UPLAND (MAINLY DRY) SOILS White sand. This consists of nearly white quartz sand, usually rather coarse, and with less than 2% of silt and clay. It varies in depth from a few inches to several feet,£ and commonly passes rath- er abruptly below into yellowish sand of similar texture. It is widely distributed in central Florida, but most common in the lake region and near the east coast. In the coast strip it is chiefly confined to old dunes, but in the lake region, where it is very characteristic, no constant relation to the topography has been made out. It has been called “Norfolk sand with scrub oak vegetation” in the U. S. soil survey of the “Ocala area” (1913)§, “Leon sand, rolling phase” in that of Pinellas County (1914)8, “Leon fine sand, scrub phase” *See for example a paper on the soils of Florida by Dr. E. H. Sellards in our 4th Annual Report (1912), pp. 1-79. This was published in more con- densed form the following year in the 12th Biennial Report of the State Ag- ricultural Department, pp. 249-299, and has been reprinted two or three times as a supplement to the Quarterly Bulletin of that department. tJust before completing this chapter the writer had the advantage of a visit from Mr. J. Otto Veatch of the U. S. Bureau of Soils (formerly assistant on the Geological Survey of Georgia), who has been making a special study of Florida soils for the last year or two. He has made some helpful criticisms, but of course cannot be held responsible for any errors that may remain. tIn some of the government soil surveys the white sand is stated to be a mere veneer a few inches thick, but this was probably not intended to apply generally to large areas, for in a railroad cut about four miles west of Bartow, if not elsewhere, it extends without perceptible change to a depth of at least eight feet. §Reprinted in our 7th Annual Report, I915. 172 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT and “St. Lucie fine sand” in Hernando County (1915), “St. Lucie sand” and “St. Lucie fine sand” in the “Indian River area” (1915), and “St. ol wcie, ding sandicain, Hillsborough, (county, (L918). Some ever, rather than different interpretations on the part of the soil surveyors. This sort of soil is represented in the tables a few pages farther on by mechanical analyses 37, 38, 46 and 47, and chemical analyses D and K (which unfortunately are incomplete). As compared with other soils of the area it is very poor in potash, clay, humus, and animal life, and it seems likely that in some cases at least it has been derived from the creamy sand next to be described by long- continued leaching out of soluble materials, a process which in the creamy sand seems to be constantly counteracted by animal agencies, as explained on the next page. Just what keeps these animals out of the white sand remains to be explained; but it may be that they are very slowly encroaching on it year by year. The vegetation on the white sand on uplands is nearly always of the scrub type, described farther on in the chapter on vegetation Where it 1s low and flat, however, it may bear vegetation of the flatwoods type, with pines and saw-palmetto predominating; and there are various intermediate conditions. Whether the white color extends down only a few inches or several feet does not make as much difference in the vegetation as one might imagine; which seems to indicate that the top soil is more important to plants than the subsoil. In the interior this soil is almost never cultivated, but along the east coast great quantities of citrous fruits and pineapples and even some vegetables are raised on it, of course with the aid of lib- eral applications of fertilizers. Cream-colored sand. This is by far the most extensive type of upland soil in our area, especially in the lime-sink and lake regions It includes most of the ‘‘Norfolk sand,’ “Norfolk fine sand” and “Norfolk sandy loam” and some of the “Gainesville fine sand” of the government soil surveys, and is represented in the tables by mechanical analyses 6-9, 27, 28, 39, 40, and chemical analyses E. leaned: It consists of medium to fine-grained incoherent quartz sand, with 3 to 8% of silt and clay, and is usually very homogeneous to a depth of several or many feet, so that few if any roots go all the | | | | — ee ee SU Tee ee _—e es rll GEOGRAPHY OF CENTRAL FLORIDA 173 way through it. The prevailing color is cream or light buff, ex- cept that the uppermost inch or two is usually bleached a little by the action of vegetation. In cuts and pits where the whole thick- ness of the sand is exposed it rests sometimes on sandy clay and sometimes on phosphate rock or silicified limestone, the latter some- times protruding a few inches above the surface in boulder-like outcrops without making any perceptible difference in the vegeta- tion.* _ Salamanders abound and gophers, ants, and sundry other bur- rowing animals are common in this type of soil, so that practically every particle of it within a foot or two of the surface must be turned over by them every few years, and this may be a sufficient explanation of its homogengity. The vegetation is nearly always of the high pine land type. Al- though the soil looks very unpromising to one accustomed to clayey soils, it is very easily cultivated, and when properly fertilized yields very satisfactory returns. Practically all the farming in the lime- sink region, and most of the orange groves in the lake region, are on this kind of soil. Cream-colored sand with humus. Where the soil just described is protected from fire by being partly surrounded by bodies of water or hammocks (see chapter on vegetation), the forests become much denser (sandy hammocks), and some humus accumulates, making the top soil gray. This phase has been mapped as “Norfolk sand,” “Norfolk fine sand,’ and ‘Leon sand, hammock phase;’ and it is represented by mechanical analyses 41 and 42 and chemical anal- yses C and Q. Salamanders seem to be absent and other subterra- nean animals scarce, so that the soil is more leached than the typical phase; and comparatively little of it is cultivated. Brown, rusty, and ashy sand. In many places, for example around Dade City, Brandon, Mount Dora, Montverde, and between Bartow and Fort Meade, the loose sand of the uplands is brownish instead of cream-colored. Mechanical analyses 29 and 30 and chemical analysis H, all from near Fort Meade, probably represent this type. In the vicinity of Fort Meade, where the soil is decidedly *There is some difference of opinion as to whether this sand is a distinct formation or a residual material from the underlying Tertiary strata, as stated in the chapter on stratigraphy; but from the geographical standpoint that is a matter of little consequence. 174 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT chocolate-colored, it commonly has phosphate pebbles scattered through it, or underlying it at no great depth, and it is probable that the same sort of soil at the other localities contains more phos- phorus than the common creamy sand, though those in the lake re- gion are remote from any known phosphate deposits, and the reason for the difference in color there is not obvious. The vegetation on the darkest phase near the Peace River is usually of the semi-calcareous hammock type, while elsewhere it is mostly high pine land, but differing from typical high pine land in having more turkey oak than black-jack—or sometimes very few oaks of any kind—and more Spanish moss on the pines than usual (especially around Dade City). This being evidently a better soil than those previously described, a good. deal of it is cultivated. In a few places in the lake region, for example in southern Polk County, the prevailing sand has a rusty yellowish color, presumably due to iron, but is similar to the creamy sand in depth, texture, and vegetation. A more remarkable type, occurring on high uplands a few miles south of Lakeland, is ashy gray in color, with consider- able silt or rather very fine material in it. This is close to the pebble phosphate country but high above it, and its derivation and compo- sition are unknown. The gray matter does not appear to be of the nature of humus.* The vegetation is mostly of the high pine land type, with turkey oaks exceptionally large and numerous. A large part of this soil has been cleared and planted to orange groves. Semi-calcareous hammock land. This is a makeshift term used by the writer to cover a variety of upland soil that is mostly sand, but has enough limestone within a few feet of the surface or out-: cropping to influence the vegetation perceptibly. It is an inter- mediate condition between the creamy sand already described and the calcareous uplands described on the next page. It is comnjon in the vicinity of Ocala, and has been mapped as “Fellowship sand,” “Fellowship sandy loam,” Gainesville loamy sand,” “Gainesville sandy loam,’ and Portsmouth sandy loam;’ and it is represented in the following tables by mechanical analyses 10-14, 17, 18, 21-24, 48-51, and chemical analyses B, G, N and S. *This soil in color resembles some near the center of Alachua County, mentioned incidentally in the Sixth Annual Report, p. 370; and in texture it reminds one of the loess of southwestern Mississippi, which is supposed to have been transported by the wind. © al ee yO age eee ey ee SE ae ee ae GEOGRAPHY OF CENTRAL FLORIDA 175 It is characterized by hammock vegetation with evergreen and deciduous trees approximately equal in numbers, as described far- ther on. A considerable portion of it is under cultivation. Sala- manders seem to invade this soil only where it has been cleared and abandoned a short time, perhaps indicating that they do not like shady places. Calcareous uplands. Where the soft Ocala limestone crops out, as near Ocala and in southeastern Citrus County, it grades into a black sticky soil rich in humus. One such area a little south of Ocala has been mapped as ‘Fellowship clay loam,” and a somewhat similar soil occurs farther north near McIntosh, where no rock outcrops are in evidence, and in and around lime-sinks in the Her- nando hammock belt. It is represented by mechanical analyses 15, 16 (perhaps also 17 and 18), 25 and 26, and chemical analyses ae and U: The vegetation is of the hammock type, with the great major- ity of the trees deciduous. The hackberry and a few other plants of the same or allied families are very characteristic. Although this is a very rich soil, it.is usually too hilly or rocky to be cultivated much. Lettuce and other vegetables are raised on or near it on the west side of Orange Lake, where there is very little rock. Clay soils. Upland soils distinctly clayey at the surface, and containing as much as one-fourth clay, are rare in peninsular Flor- ida. The mechanical analyses farther on which show high percent- ages of clay are nearly all calcareous hammock soils, and the “clay” in them is probably mostly humus and marl. In the Middle Flor- ida hammock belt, north of the “Ocala area” (e.g., around Fair- field), and in the central part of the Hernando hammock belt, there are some soils clayey enough to form clods when plowed. No me- chanical analyses of these are available, but chemical analyses of two of the Hernando County soils are given under V and W. On such soils short-leaf pine, sweet gum and hickory are characteristic trees, and a good deal of corn and other staple crops are raised, with little or no fertilizer. The whole aspect of the country strongly suggests some places in Georgia and Alabama. DAMP SOILS Sandy. Under the head of damp sandy soils are classed most of the soils of the Gulf hammock region and the three flatwoods re- 176 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT gions, and limited areas in all the others. They vary in color from white to dark gray or nearly black, usually without any trace of red, yellow or brown. In many places shallow cuts or ditches reveal a stratum of “hardpan” (sand cemented together by some dark brown organic substance with perhaps a trace of iron) within two or three feet of the surface, and borings made by soii investigators seem to indicate that this is present in practically all our flatwoods areas, unless clay or rock takes its place. The hardpan is relatively impervious to water and not readily pen- etrated by tree roots, but in some places it is said to be only a few inches thick, with white sand below it, so that it can be perforated by blasting or otherwise in preparing the land for agricultural purposes. The damp sandy flatwoods soils are classed in the government reports as “Portsmouth fine sand,’ “Leon fine sand,” ‘Norfolk fine sand, flat phase,” “Fellowship fine sandy loam,” etc. In the following tables they are represented by mechanical analyses 19 and 20 and chemical analysis Y. Salamanders are found only in the driest spots, and other burrowing animals are scarce. The whitest of the damp sand has a vegetation nearly all ever- green, something like that of the upland scrub, and this might be called low scrub. Most of it, however, has a low pine land or flat- woods vegetation, consisting mostly of pine and saw-palnietto. Within a few miles of the larger rivers, particularly south of lati- tude 29°, the pines may be absent over many square miles, making palmetto prairies; and sometimes the palmetto too is wanting or nearly so, but that probably indicates a Hee kind of soil, either . wet or marly, or both. A great deal of the damp sand is too wet for successful agri- culture until artificially drained, but its level topography facilitates the control of irrigation water and fertilizers, and some very. in- tensive farming is carried on in places convenient to transportation lines, Sandy and rocky soils. In the Gulf hammock region the sand seems to be underlaid at no great depth by limestone, and the rock crops out in many places, sometimes thickly enough to interfere seriously with plowing. This type is designated in the soil surveys as ‘“‘Leon sand,” “Leon fine sand,’ Portsmouth fine sand,’ ‘‘Gaines- ville sandy loam, pine woods phase,” “Hernando fine sandy loam,” That Net ee os ee ie GEOGRAPHY OF CENTRAL FLORIDA WIL F/ etc. The amount of lime in the soil must be comparatively small, for except where the rock outcrops are very abundant the vegeta- tion does not differ greatly in aspect or composition from that of the non-calcareous flatwoods. Only a small part of this soil is cul- tivated at present, but it seems to be very well suited for vegetables of many kinds. Sand and rock with humus. The greater part of the soil of the great Gulf Hammock of Levy County (fig 5), and perhaps many other level hammocks, seems to have been originally damp sand with limestone protruding through it, though the relative amount of sand may have been less than in the flat- woods, and indeed without extensive explorations it would be hard to say how much of it belongs to the marly type described a little farther on. Anyway, the dense forests now established in such places furnish their own protection from fire and form a great deal of humus, which differentiates the soil further from that of the flatwoods. Mechanical analyses 4 and 5 (“Park- wood fine sandy loam’’) represent this type pretty well. When cleared it makes a good trucking soil, like the preceding. Clayey soils. a ee eee ee ee ee Se) oF eV beh Oar est, > GEOGRAPHY OF CENTRAL FLORIDA 197 influenced the precipitation through the vegetation or in some other way:* The summer rain falls mostly in the daytime, in the form of short, heavy showers. Hurricanes visit this section occasionally, usually in late sum- mer, the season of maximum precipitation. But they rarely do much damage except near the coast, and even there they appear to be less frequent and destructive than they are a little farther north and south, though accurate statistics are not available. Torna- does, popularly known as “cyclones,” are almost unknown here, those being chiefly confined to those parts of the United States that have considerably more rain in early summer than in late summer. VEGETATION The vegetation of central Florida is even more diversified than the soil, and far more than in most areas of the same size in the eastern United States. About thirty natural types are here recog- nized, and that number could possibly be doubled without undue duplication if one cared to go into such minute details. Just what constitutes a vegetation type is a disputed point. Some botanists have described a multitude of ‘“‘plant associations,’ some of them consisting chiefly of a single species and occurring in strips or patches only a few feet wide; but in this work nothing less than sev- eral acres in extent is considered. Even if there was no uncertainty about the size of the unit it would still be difficult to devise a satisfactory classification, for different types are related to each other in all sorts of ways, and two apparently quite different ones may be merely different stages of the same thing. In this work they will be taken up as nearly as possible in order of complexity, beginning with places that have no vegetation at all, and vegetation composed wholly of herbs, and proceeding through shrubby types to dense forests made up of trees, shrubs, herbs, mosses, epiphytes, parasites, etc. ca Ni NET RSE SII LE ONC NY SS ew *Some of the discrepancies in this respect observable in other parts of the table may be due to records too short to be accurate enough, or even to ty- pographical or other errors. It seems a little strange, for example, that New Smyrna should have the lowest summer percentages and the highest late sum- mer excess at the same time. 198 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT There are interesting analogies between all these types and dif- ferent stages of human society. In deserts and polar regions there is no permanent population; where conditions are a little less for- bidding there are tribes with simple civilization and little educa- tion, where nearly all men have the same occupation, like the Bed- ouins and Eskimos; and at the other end of the series are highly civilized communities, with a very complex division of labor, and individuals varying in-ability and usefulness from criminals (anal- ogous to the parasites of the vegetable world) and loafers to gen- iuses and “intellectual giants,” analogous to the largest trees.* No classification of vegetation can be final or complete, for there are all sorts of intergradations between different types, and some types which may be perfectly distinct or at least not inter- mediate between any other two may escape observation on account of occurring only in small patches or in out-of-the-way places. But those here described probably cover at least 90% of the uncultivated land area treated, and the omission of any others will hardly be no- ticed by persons not intimately acquainted with the area. Cultivated crops are not regarded as vegetation, for they do not follow natural laws but grow where they are put. There is more or less characteristic weedy vegetation in old fields, vacant lots, along roadsides, etc., but that can be studied just as well after the natural vegetation is all gone, and it is ignored for the present (except that a few of the more abundant weeds have been in- cluded in the regional plant lists). Of course it would be a mat- ter of some interest to make a careful study of the weeds now, and again every few decades to see what changes are taking place, but limitations of time and money (if not enthusiasm) have prevented. A good description of each vegetation type would include a list of all but the rarest species, arranged according to size and abun- dance (as was done for those in the “Ocala area”’ in the 7th Annual Report), together with notes on the prevailing times of blooming, colors of flowers, modes of dissemination, rate of growth, economic properties, etc., but to do that would increase the bulk of this report beyond reasonable limits, and consequently the descriptions have been made as brief as possible. Some of them are supplemented by *For a rough classification of human occupations in ten grades see Sci- entific Monthly (former Popular Science Monthly) 10:295-296. March, 1920. i i a i et ee BO ae GEOGRAPHY OF CENTRAL FLORIDA 199 illustrations, which tell many things that cannot be put in words. The principal vegetation types seem to be as follows: PLACES WITH NO VEGETATION These include bodies of water too deep for seeds to germinate in, caves too dark, small rock outcrops in pine woods swept by fire, beaches continually washed by waves, and roads, fields, and other artificial situations. HERBS PREDOMINATING Aquatic vegetation (fig. 35). In the deeper parts of lakes and in sluggish rivers and runs there are quite a number of herbs, either floating free like the water-hyacinth (which however is not native) and water lettuce, or with floating leaves like the water-lilies and bonnets, or all submerged except the flowers (species of .Sagit- taria, Vallisneria, Potamogeton, etc.) or with both leaves and flow- ers raised above the water (Sagittaria lancifolia, Scirpus, Ponte- deria, etc.). Such vegetation is found in fresh water that does not vary too much in level, in all countries that are not too cold or too dry, and consists mostly of monocotyledons and rather simple dico- tyledons. It has much the same aspect in all continents, and the gen- Fig. 35. Marshy margin of Lake Apopka near West Apopka, Lake County, showing water-lilies, wampee (Pontederia), etc. May 20, 1909. 14 200 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT era and even some of the species composing it are very widely dis- tributed. Marginal and shore vegetation (fig. 20). In shallow margins of lakes and along rivers where they are not subject to much fluc- tuation, as near their mouths, we commonly find a type of vegeta- tion intermediate between the preceding and the saw-grass marshes (described a little farther on), and grading into both. It consists mostly of a few coarse monocotyledons with hollow or spongy stems or petioles, like maiden cane (Panicum hemitomon), saw-grass, wampee (Pontederia), and Sagittaria lancifolia. Then above the usual water level on sandy and peaty shores of lakes we find a greater variety of herbs, mostly monocotyledons, often with a few scattered shrubs among them. A list of characteristic plants of such places was given in the 3rd Annual Report, page 267. Grassy dunes. On dunes where the sand is constantly moving, apparently not so much on the east coast as on the west coast, there is a sparse vegetation of coarse grasses and other herbs, chiefly sea- oats (Uniola paniculata) and other plants belonging to families well represented in tropical America. These renew their foliage every year, necessitating comparatively rapid growth and presumably in- dicating moderately fertile soil, though the bulk of vegetation per square yard or acre is not large on account of its very open structure. A little farther back from the shore, where the sand is not moving perceptibly, and much of the plant food has been leached down beyond the reach of roots, the vegetation is of a much slower- growing type, described below under the head of shrubs. Salt marshes (fig. 3). These are characteristic of shallow bodies of salt water protected from wave action, where the veg- etation builds up a foundation of muck just about to high tide level. The characteristic plants are coarse grasses and rushes, with a few-scattered bushes. In warmer climates the woody plants become larger and more numerous, until the marshes are replaced by mangrove swamps (described farther on). Saw-grass marshes (fig. 36). When a lake or a large embay- ment of one becomes filled with peat, especially if the water is a lit- tle calcareous, the vegetation is often composed almost whoily of - saw-grass (Cladium effusum or Mariscus Jamaicensis), an ever- green sedge several feet tall. The same species also forms a fringe —— = 7 GEOGRAPHY OF CENTRAL FLORIDA 201 Fig. 36. Large saw-grass marsh bordering Lake Harris, looking north from about a mile east of Eldorado, Lake County. Pine land in distance is over a mile away. Feb. 9, 19009. along rivers that fluctuate little, which in favorable situations may expand into marshes of considerable width. Some of the plants commonly associated with the saw-grass have been listed on the lower half of page 270 in the’ Third Annual Report. Such marshes are common in the lake region, and often cover several hundred acres; and they may be important sources of peat when that sub- stance becomes more popular than it is now. Plans are just now being perfected for manufacturing paper from saw-grass in Lake County, where there are some of the largest saw-grass marshes to be found outside of the Everglades. For such an industry to be permanent requires that the “grass” shall grow as fast as is cut, which can be determined by multiplying the annual growth per acre by the acreage available. With marsh vegetation that dies down to the ground every year, like cat-tails, it is a very simple matter to cut, dry and weigh a square yard or so of it at the end of the grow- ing season, and convert the results to pounds or tons per acre.* *For a study of several types of marsh vegetation on Long Island made in this way see Plant World 21:38-46. (April) 1918. The most luxuriant veg- etation found there was reed-grass, Phragmites communis, which yielded at the rate of about 24 tons per acre when fresh and 12 tons when air-dry. Saw-grass is said to yield from 12 to 20 tons per acre (fresh) at the first cutting. 202 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT But saw-grass being evergreen, the foliage present at any one time represents more than one year’s growth, so that the proper proced- ure would be to first mow down a small patch of it in midwinter, and then cut and weigh a measured area from the same patch a year later. Peat prairies. These are basins reaching a few to several feet below the ground-water level which have become filled with peat, and are covered with herbaceous vegetation other than saw-grass, presumably on account of the water being purer or at least less calcareous than in the saw-grass marshes. They are more com- — mon in the lake region than elsewhere. In the course of develop- ment from lake to peat prairie the vegetation has of course under- | gone considerable change, beginning with none at all and passing ~ through the aquatic and marginal types above mentioned. That growing on the surface of the peat at present is much like that of — some of the lake margin prairies described on the next page, ex- : cept for the frequent occurrence of dense clumps of bay (Magnolia — glauca) and other broad-leaved evergreens, a few rods in diam- eter. The most characteristic plants have been listed in the Third Annual Report (pp. 274-275), and do not need to be repeated here. The herbs are mostly grasses and other monocotyledons. The peat in such places is among the purest to be found anywhere. Basin prairies (fig. 16). The flat-bottomed lakes which drain off at intervals through subterranean outlets, in the Hernando ham- mock belt and farther north, are carpeted when dry with herbaceous vegetation that has not been carefully studied, but consists largely of plants whose indigeneity is under suspicion, for they grow also in places that have obviously been altered artificially. The most characteristic seem to be dog-fennel, Eupatorium capillifolium, and | a grass, Anastrophus paspaloides, as stated in the Third Annual Re- port, page 261. The weediness of the vegetation is doubtless largely due to the fact that such areas have long been closely grazed by cattle and sheep. Lake margin prairies (fig. 26). Some of the larger lakes that are so shallow that a small change in water level makes a great difference in the position of the shore line have the area between high and low water covered with grassy vegetation similar in aspect — to that. just mentioned, and containing some of the same plants and — GEOGRAPHY OF CENTRAL FLORIDA 203 usually a good many additional, which make nearly as good pasture. This type is commonest in the eastern division of the flatwoods, e.g.,around Lakes Harney and Tohopekaliga, but there are some very interesting examples around Lake Tsala Apopka in Citrus County. There are all gradations between this type and the shore vegetation of smaller lakes already mentioned, and of course a con- siderable variety of flora, depending on the soil and water. For ex- ample, in the eastern part of Polk County one of the most conspic- uous plants on the prairie-like margins of the smaller lakes is a prickly pear (Opuntia ammophila?), while in very similar, though perhaps a trifle wetter, situations in northern Osceola County a pitcher-plant (Sarracenia minor) is equally common. Around Lake Harney the vegetation shows a little influence of lime or salt or both. Shallow prairies. Small shallow depressions that dry up com- pletely in the dry seasons usually have vegetation resembling the two types last described. (See Seventh Annual Report, page 153 and fig. 57.) Such places are commonest in the lime-sink and Gulf hammock regions, and they often have a few small outcrops of flinty limestone in them. Those in the Gulf hammock region in Sumter County seem to have more dog-fennel in them than the av- erage. Those in the eastern division of the flatwoods, which ap- proach the next type, are known locally as “sand soaks.” Flat prairies (fig. 28). Scattered through the central portion of Volusia County, and for several miles on either side of the upper St. John’s and lower Kissimmee Rivers are large areas resembling the neighboring flatwoods in soil and topography, but devoid of trees or nearly so, for no apparent reason, unless such areas are a little more subject to inundation than the flatwoods, or a little more marly. Saw-palmetto and other shrubs are often less abun- dant in such places than in typical flatwoods, apparently indicating more fertile soil. Going westward from Melbourne one first passes through continuous pine forests for a few miles, and then small prairies begin to appear, gradually becoming larger, and the pines between them smaller and more scattered, until at-a distance of about seven miles from the Indian River or four miles frorn the St. John’s River the trees are all left behind, and the prairie extends beyond the horizon both north and south. The writer has not yet seen the Kissimmee River prairies, on acount of their remoteness 204 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT from railroads, but the boundary between them and the pine forests is said to be pretty sharp, and they are said to have some pretty fer- tile spots, and more abundant animal life (both wild and domesti- cated) than most of our prairies. This type of prairie is subject to fire practically every year, like the flatwoods. Its chief economic importance is as pasturage for vast herds of cattle. SHRUBBY VEGETATION , Saw-palmetto thickets (fig. 33). The outer dunes of the east coast in the latitude of Melbourne are covered with an almost im- penetrable growth of saw-palmetto about waist-high, with perhaps 1% of other shrubs* of about the same height, principally a small oak, Quercus myrtifolia. The palmetto leaves in such situations, in- stead of being yellowish green as in the interior of the State, are covered with a thin gray waxy coating, making a strong contrast with the bright green oak leaves. (This color phase of the palmetto is common within a few miles of the coast, the green type gradually replacing it farther inland, without any apparent intergradation. ) Just why trees are absent there is not certain, but the strong wind probably has something to do with it. Fire must be a rare occur- rence; and neither the vegetation nor the soil on which it grows seems to be utilized for anything at present. Some of the treeless areas described on the preceding page might be classed as palmetto thickets instead of prairies, where the growth of palmetto is dense, but the other species associated with it would of course be mostly different from those on the dunes, Scrub thickets. This term is used to cover various thickets - of shrubs no higher than a man’s head, widely scattered over our area, but usually of very limited extent. Those on the peninsulas of Lake Tsala Apopka were described and figured in the Seventh Annual Report (pp. 141-142, 155). Other thickets that may come under this head are found near the mouth of the beautiful Pithla- chascootee River in Pasco County. Wherever typical scrub (de- scribed farther on) occurs there may be areas in it devoid of trees, *The palmetto is not a shrub, strictly speaking, but its stiff evergreen leaves occupy about the same position that the branches of ordinary shrubs do. ae es GEOGRAPHY OF CENTRAL FLORIDA 205 and therefore to be classed as thickets. The shrubs are nearly all evergreen, and the soil very poor and seldom cultivated. SMALL TREES Mangrove swamps (fig. 37). On the margins of shallow quiet bodies of salt water from Brevard and Pinellas Counties southward are swamps composed of salt-loving small trees and large shrubs mainly tropical in distribution, particularly the black, red and white mangroves (Avicenna, Rhizophora and Laguncularia) and button- wood (Conocarpus). The first-named extends northward in shrubby form to Cedar Keys and New Smyrna and perhaps far- ther. In extreme southern Florida the first two become trees of considerable size, and the red mangrove is used for tan-bark and the buttonwood for fuel. Fig. 37. Mangrove swamp on inner side of Long Key, Pinellas County. The larger trunks at the left belong to the black mangrove (Avicennia), and the innumerable erect pipe-stem-like objects are its aerating organs. The seed- lings and smaller crooked trunks are red mangrove (Rhizophora): March 11> IQI5. _ Tropical hammocks (fig. 34). The plants growing on shell mounds along the Indian River in southern Brevard County are nearly all of tropical species, quite different from the species of more northerly distribution on sandy soils nearby. . The forests are very dense, and the trees rather small and crooked, though they all grow larger in the hammocks south of Miami, and in the 206 FLORIDA GEOLOGICAL SURVEY——-I3TH ANNUAL REPORT West Indies. The trees are nearly all evergreen, and most of them have small fleshy fruits, adapted for distribution by birds. Species belonging to entirely different families often look much alike, and are difficult to distinguish even when in bloom, for the flowers are rather inconspicuous. Characteristic trees are the gumbo-timbo (Bursera), mastic (Sideroxylon), rubber or wild fig (Ficus), and pigeon plum (Coccolobis laurifolia). Shrubs and herbs make up a very small part of the total bulk of vegetation. Fire is very rare, as in other hammocks, and the ground is covered with a thin layer of humus. These hammocks are too limited in extent in central Florida, and the trees in them too small, to be of any economic im- portance. TALL TREES Palm savannas (figs. 4, 32). These are of two principal types, wet and dry. The first is found principally around the head of Indian River and Newfound Harbor on the east coast, and near the Gulf coast in Citrus and Hernando Counties, where there are thou- sands of acres of damp and presumably marly flats close to sea- level, on which the cabbage palmetto’ is almost the only tree, and there are very few shrubs. On Merritt’s Island the herbaceous veg- etation is mostly switch-grass (Spartina Bakeri), but elsewhere there is greater variety. These savannas are evidently subject to fire, but probably not so often as the pine forests. The second type occurs among the dunes of Long Key in Pi- nellas County, and probably elsewhere along that coast. The soil is sand with a considerable admixture of shell fragments, and the topography is diversified with miniature hills and hollows produced by the wind. The trees are all cabbage palmetto, and there is a sparse undergrowth of a few bushes.and vines and many herbs, largely of the same species found in calcareous flatwoods and in meadow-like dune hollows on Anastasia Island.* Some evidences of fire were noted on Long Key, but nothing is known of its fre- quency. The herbage affords a little grazing. A transition between palm savannas and low hammocks is found near the head of the Indian River and elsewhere, especially around Homosassa, where there are dense shady forests composed almost entirely of cabbage palmetto. *See 6th Ann. Rep., pp. 304, ° 330, 308. sy. ean, GEOGRAPHY OF CENTRAL FLORIDA 207 Open flatwoods (fig. 23). In Georgia, Alabama and, Missis- sippi the term “flatwoods” is commonly applied to rather dense hardwood forests on damp clayey soils, but in Florida it always means level forests of long-leaf or slash pine, Most of our flat- woods have a dense undergrowth of saw-palmetto or other shrubs, but in the western edge of the lake region in Marion County, and in some places in the southwestern flatwoods region, particularly in Pasco County and near the Peace River, the shrubs are scarce or absent, presumably indicating a better or at least a finer-grained soil than usual. And all through the eastern flatwoods there are patches an acre or so in extent which have little or no palmetto, and some herbs, such as the pitcher-plant, are very characteristic of such places. This latter phase is usually a little damper than the rest, and might be regarded as an approach to the shallow prairies already described. Palmetto flatwoods. These are of two or three kinds, depend- ing on which species of pine predominates, but all have much the same aspect: tall pines with very few other trees, and a dense shrubby undergrowth from knee-high to waist-high, consisting mostly of saw-palmetto and other evergreens. There are also many herbs partly hidden by the shrubs. This type covers the greater part of the three flatwoods regions and the Gulf hammock region, and occurs in all the others, with the possible exception of the west coast islands and the hammock belts. The pine is usually long-leaf, but near the coast and near the larger prairies, especially if the soil is a little calcareous, it may be completely replaced by slash pine (Pinus Caribaea). Ina few damp spots in the eastern half of the area black pine (P. serotina) predominates. The characteristic plants of the flatwoods of Marion and Sumter Counties were listed in the Seventh Annual Report, pp. 144-146. Fire sweeps through the flatwoods every year or two, but does not injure the pines unless they are very small or have been turpen- tined, and the palmettos soon send up a new crop of leaves from their thick creeping stems. The pines are an important source of lumber and turpentine, some of the shrubs yield honey, and the herbage affords pasturage for many cattle. On account of the rather damp soil, and the difficulty of grubb:ng out the palmetto and other shrubs, the farmers have encroached on the flatwoods very little, 208 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT probably not more than 5% being under cultivation at the present time. “Cutthroats’. In the eastern part of Polk County, about on the line between the lake region and the flatwoods, there are several examples of a little-known habitat or type of vegetation called lo- cally by the above name. It seems to have been first made known to scientific readers by Prof. C. V. Piper about three years ago.* About two years later some of it was pointed out tu the writer, who made a hasty examination while his host’s automobile waited. A cutthroat seems to be a place in the flatwoods kept perpetually moist by water seeping out from slightly higher ground near by, and is almost the only thing in central Florida comparable with the boggy slopes that are a characteristic feature of the West Florida pine hills“; The trees are mostly slash pine, and the bulk of the herbage seems to consist of “cutthroat grass” (Panicum Combsii, also found in West Florida). According to Prof. Piper this grass is reputed to be good forage for steers but not for calves, and it is supposed to cause “‘salt sickness’? among cattle. High pine land (figs. 9, 10, 19). This is one of the most exten- sive types.of vegetation in central Florida, covering perhaps nine- tenths of the lime-sink region and three-fourths of the lake region, and considerable parts of most of the others. Typically it consists of long-leaf pine, with a lower story of black-jack, turkey, and oc- casionally other oaks, a sprinkling of saw-palmetto and other shrubs but no woody vines, and a moderately dense carpet of wire- grass and other herbs. Either the oaks or the shrubs may be absent from many acres, though. The oaks are commonest on the high- est and driest uplands, and they seem to increase in abundance after logging operations, perhaps chiefly because the removal of the pines allows the soil to become drier; but they are almost wanting in some places where nearly all the pines have been removed, as in the hard- rock phosphate country. The characteristic plants of high pine land in the lime-sink region have been listed in the Seventh Annual Report (pp. 166-167), and that in the lake region does not differ much. *Jour. Am. Soc. Agronomy 10:162-164. April, 1918. tSee 6th Annual Report, pp. 232-233. GEOGRAPHY OF CENTRAL FLORIDA 209 As explained in the publication just cited, fire is a normal and important factor in this type of vegetation. It comes at irregular intervals, usually in early spring, but probably sweeps over each spot about once in two years, on the average. The herbs, being perennials, would probably not be injured perceptibly by fires every winter, and the shrubs also have underground stems which soon send up new sprouts after the parts above ground are burned. The long-leaf pine is practically immune to fire after it is four or five years old, and any one spot to have a continuous growth of pine would merely need to escape burning for that length of time about once or twice in a century. The high pine land is of great economic importance. The pines yield lumber of the finest quality, fuel, naval stores, etc., and the grass furnishes pasturage for thousands of cattle. The soil is easily tilled, and much if not most of the farming in central Flor- ida is done on what was once high pine land. Probably one-fourth of the original vegetation has been completely eradicated in this way, and the remainder considerably damaged by lumber and tur- pentine and phosphate men; but it restores itself pretty well when given a chance. Scrub (figs. 11, 38). This type of vegetation is almost con- fined to Florida, but marked resemblances to it in one way or an- other can be found in the sand-hills of Georgia, the pine-barrens of New Jersey, the jack-pine plains of Michigan, the chaparral of Cal- ifornia, the heaths of northern Germany, the scrub of western Aus- tralia, etc.; all of which have either poor soil or deficient rainfall. No accurate estimate of its area is possible at this time, but it prob- ably covers something like 5% of the whole area under considera- tion, and as much as 10% of the lake region. It is nearly always on old dunes and other white sands, but occasionally on creamy sand scarcely distinguishable from that of the high pine land. Where it adjoins high pine land the boundary is often so sharp that one can go from one type into the other in one step. It has been de- scribed in many previous publications relating to Florida,* particu- *But strange to say, two of the most complete descriptions of Florida, namely, Col. J. L. Williams’ “Territory of Florida” (1837), and Dr. E. A. Smith’s report on cotton production (1884), do not seem to mention the scrub at all. (For full citations of these works see 6th Annual Report, pp. 415, 416.) PAW FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT larly in our Seventh Annual Report (pp. 142-144), so that little more needs to be said about it here. lt oe ate Fig. 38. Typical scrub, with bare white sand in foreground, about three miles east of Tavares, Lake County. Feb. 21, 1909. The dominant and almost the only tree is the spruce pine (Pinus clausa), and there is an undergrowth of evergreen shrubs ,and small trees, averaging about the height of a man, and very little grass or other herbage. The density of the forest varies consider- ably in different places. On the old dunes of the east coast, and in a few places in the interior (see Seventh Ann. Rep., fig. 62*) the pines are so close together as to make a moderately dense shade; and the U. S. Geological Survey’s Ocala topographic sheet (used as a part of the base-map for the soil survey of the “Ocala area,” reprinted in our Seventh Annual Report) shows an area over a mile in diameter about three miles west-southwest of Ocala, labeled “dense scrub,” through which no contour lines were run. Sut in the lake region it is often so open that large areas of dazzling white sand can be seen, and such places are delightful to stroll through, being so bizarre in appearance and so clean and free from briers, snakes, mosquitoes, etc. *The same cut was used previously in the Popular Science Monthly (now called the Scientific Monthly), vol. 85, p. 358, Oct., 1914. — ==" GEOGRAPHY OF CENTRAL FLORIDA 201 As in the jack-pine and spruce forests of the far north, but un- like anything else in or near Florida, fire sweeps through the scrub about once in the life-time of a pine tree and kills the pines, which however soon come up again from seed. Sometimes two crops of pine of different ages can be seen close together (fig. 31). Scrub vegetation indicates very poor soil, which is usually left uncultivated, but it is utilized along the east coast, as noted in the chapter on soils. Cypress ponds (fig. 24). These are a characteristic feature of the pine-barren portions of the coastal plain from North Caro- lina to eastern Louisiana, and they extend south in Florida to Palm Beach County and the “Big Cypress” of Lee County. There seems to be nothing similar in any other country on earth. In the area under consideration they are very abundant in the flatwoods re- gions (except in the pebble phosphate country), rare in the lake re- gion, and practically unknown in the others. In northern Florida and neighboring states they usually contain more or less slash pine (Pinus Elliottii) or sometimes black gum, but south of Flagler County the pines rarely enter the ponds, and there is commonly a treeless strip a few yards wide around each pond, where the soit is a little too dry for cypress and too wet for the common slash pine of the peninsula (P. Cartbaea). In size the ponds may range from one to a hundred acres or so, and the water may be as much as three feet deep in the larger ones in wet seasons and disappear entirely in dry seasons. The amount of seasonal fluctuation is in- dicated roughly by the height of the enlarged bases of the trees. The pond cypress (Taxodium ascendens, or imbricarium) is usually almost the only tree. Sometimes it grows so densely as to exclude nearly all other woody plants, and sometimes the cy- presses are farther apart and there is a dense undergrowth of mostly evergreen shrubs and a few vines, making an approach to the bay type of vegetation. Air-plants of three or four species are often abundant on the trunks and limbs of the cypresses, making a very striking picture. In the shallow water below are a number of herbs almost confined to such situations. A list of characteristic cypress pond plants for the whole State was published in the Third Annual Report (pages 262-263), and that would not require much modifi- cation to fit central Florida alone. 212 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT In dry weather fire originating in the surrounding pine forests occasionally sweeps through a cypress pond, but the pond cypress— unlike its better-known relative in the river and lake swamps—has such thick bark that it is not usually materially injured thereby. The only economic importance of this vegetation at present seems to lie in the value of the cypress for poles, cross-ties, shingles, etc, Bays. The same sort of depressions that ordinarily contain cy- press pond vegetation often have instead a dense growth of shrubs and small trees, mostly evergreen. This sort of growth, with or without a few scattered taller trees, in shallow stagnant or slow- flowing water, is called a bay in Georgia and Florida, probably on account of the usual presence in it of bay trees (Magnolia glauca. Persea pubescens, or Gordoma Lasianthus). Whether a given de- pression is to be occupied by cypress pond or bay vegetation, or no trees at all, seems to be determined chiefly by the depth and seasonal fluctuation of the water, as suggested in the Sixth Annual Report (page 203); bays being in those whose water fluctuates least. The bays in the lower parts of Middle and West Florida were described in the Third Annual Report, pp. 264-265. In central Florida they are less common, but occur in a number of places in the flatwoods and the lake region. A variation with fewer shrubs and a great deal of slash pine was described under the head of slash pine bogs on pages 256-257 of the same publication. Some of the peat prairies have dense clumps of bay-like vegetation dot- ting their surfaces, as indicated on a preceding page, and on pages 274-275 of the report just cited. Typical bays are practically exempt from fire, but slash pine bogs are burned occasionally, The bays are of very little economic importance, except that some of the plants in them yield honey. Non-alluvial swamps. Wherever water that has percolated: through the surface sands without coming in contact with any cal- careous strata seeps out on the surface in sufficient. quantity throughout the year there is likely to be a dense shady swamp con- taining bay trees, maple, black gum, bamboo vines, etc. Such swamps (described in the 3rd Annual Report, pp. 258-260) differ from the bays just described chiefly in having a greater flow of water and more trees and fewer bushes. They are widely distrib- uted through the coastal plain from Long Island to eastern Louis- iana, but not very common in peninsular Florida, where they are — F ~~ 1 ~~” aay > a gen ee Oe ae ee GEOGRAPHY OF CENTRAL FLORIDA 213 mainly confined to the lake region, and are sometimes called bay- heads. About half the trees in them are evergreen, and fire is rare. They are little utilized at present, but will probably be drawn upon for some kinds of timber when the country is more thickly settled. Calcareous swamps. Swamps whose water is somewhat cal- careous on account of coming from limestone springs or standing for awhile in contact with limestone or marl differ from the sour or non-alluvial swamps just described in having more deciduous and usually larger trees, particularly cypress (Taxodium dis- tichum). They have been described in the Third Annual Report, pp. 271, 279-281, and Seventh, pp. 176-178. They are most com- mon in the Gulf hammock and lime-sink regions, and in fact are almost the only kind of swamps in those regions. They also occur in the lake region, around some of the larger lakes and along the Wekiva River and its tributaries. They grade into the low ham- mocks to be described next, the only fundamental difference ap- parently being the amount of water present. In the lake region they often pass abruptly into saw-grass marshes, on which they may be gradually encroaching. Fire seems to be a negligible factor. The cypress is valuable for timber, but the other trees are com- paratively unimportant. Low hammocks (fig. 25). Dense shady forests with soil per- petually moist, but not quite wet enough to be called swamps, are called low hammocks. Those in central Florida all seem to be more or less calcareous, and they are especially characteristic of the Gulf hammock region, but are quite common in the lake region and east coast strip, and occur in most of the others. They have been de- scribed in the 7th Annual Report, pp. 175-176. On the upland side they often pass into semi-calcareous high hammocks (describea farther on), or even into sandy hammocks. Fire is very rare, as in all other hammocks. Some of the trees are valuable for timber, and the soil is gener- ally quite fertile, perhaps partly on account of washings from the neighboring uplands; and where it can be easily drained it is often cultivated in vegetables. Much if not most of the truck farming in Seminole and Sumter Counties is in places formerly occupied by this type of vegetation, and one of the largest orange groves in the latter is in what seems to have been a low hammock, through probably drier than the average. Pq \ Wal FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT In the western edge of the lake region, northeast of Silver Spring, there is a type of vegetation nearer to low hammock than anything else herein described, but resembling also the swamps of some rivers farther north. This has been described in the 7th Annual Report (pp. 178-179) as short-leaf pine and cabbage pal- metto bottoms. Fig. 39. Sandy hammock about six miles south of Ocala, with holly, saw- palmetto and other evergreens, Feb. 14, 1915. Sandy hammocks (fig. 39). This is an interesting type of forest, widely distributed through the sandier parts of the coastal plain from North Carolina to central Florida and Alabama. In the area under consideration it seems to be best developed in the lime-sink and lake regions. The soil appears to be essentially the same as in the high pine land, except for such changes as have re- sulted from a slight admixture of humus, but the vegetation 1s en- tirely different, the main reason being that the hammocks are in situations partly or wholly protected from fire by lakes, streams, swamps or naturally denser forests. This point is discussed more fully in the 7th Annual Report, pp. 170-172, where a list of char- acteristic species can be found. The trees are mostly broad-leaved evergreens, so that the ground is pretty well shaded throughout the year. They seem to grow a ee GEOGRAPHY OF CENTRAL FLORIDA 215 rather slowly, and many of them have crooked trunks. Shrubs and vines are abundant and herbs scarce. The vegetation on the whole is more ornamental than useful, and the soil is little used for agricultural purposes. Calcareous high hammocks (figs. 13, 40). Where there is enough limestone near the surface to influence the soil perceptibly the uplands commonly have vegetation similar in aspect to that just described, except for having more deciduous trees and fewer shrubs. This is a very common type in the hammock belt in Marion County, and is found also in the Gulf hammock region, around some sinks in the lime-sink region and Hernando hammock belt, and (less typically ) near the Peace River in the southwestern flatwoods. The characteristic plants have been listed in the 7th Annual Report, pp. 172-175. Fig. 40. Hammock on limestone rock at the fern’ grottoes on the With- lacoochee River in southeastern corner of Citrus County, showing hackberry, live oak, magnolia, box elder, grape vines, etc. March 6, 1915. An extreme phase occurs where the limestone is nearly pure and there is little or no sand on top of it, for example around caves in Marion County and among the fern grottoes of southeastern’ Citrus County (fig. 40). Some hammocks on the west side of 15 216 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT Orange Lake with black waxy soil but no visible outcrops of lime- stone might also be classed here. The trees in such places are mostly deciduous, and some of them are listed under the illustration, Ferns of various kinds abound on the shaded rocks, and a few herbs of the nettle family, such as Urtica chamaedryoides and Parietaria, are quite characteristic. The soil of the calcareous high hammocks is very good for farming, but some of it is too rocky, and the expense of clearing is quite an item, too. In fields and orange groves cleared from this type (and also from low hammocks) scattered cabbage pal- metto trees are a common and picturesque sight (fig. 14). They probably come up from seeds dropped by birds, and are allowed to remain for the sake of appearances and because they cast little shade and do not take much from the soil. The tropical hammocks described-on an earlier page might also be treated as calcareous hammocks, but they have been put in a different category on account of the small size of the trees. Sweet gum woods. This is not a very distinct type, but ‘s note- worthy on account of its strong resemblance to some forests several Fig. 41. Red oak woods with some sweet gum, on reddish strongly phos- ephatic soil about a mile and a half east-southeast of Ocala, Marion County. Feb. 13, IQIS. a GEOGRAPHY OF CENTRAL FLORIDA 217 hundred miles farther north. The sweet gum, short-leaf pine and hickory are characteristic species. This is best seen in flat-bot- tomed valleys with dark loamy soil around Brooksville, and on up- lands northwest of Ocala, for example around Fairfield. Such forests indicate pretty good soil for general farming, through the scarcity of running water might be a slight drawback. Red oak woods (fig. 41). On dry uplands with somewhat clayey soil rich in potassium, phosphorus and iron, in central Marion County, the red oak is the prevailing tree, as it is im some places much farther north. Here it is commonly associated with sweet gum, hickory, and long-leaf pine. At one extreme this grades into high pine land, and at the other into high hammocks, which have neither red oak nor pine. Fire goes into the red oak woods just about as far as the pine does. Further details can be found in the 7th Annual Report, pp. 168-169. This type of vegetation indicates a strong soil, on which staple crops can be raised for several years without fertilizer. 218 FLORIDA GEOLOGICAL SURVEY—-I1I3TH ANNUAL REPORT \ CENSUS OF TIMBER TREES. In contrast: with the great diversity of vegetation, the species of trees in central Florida are rather few. About two dozen that are widely distributed in the eastern United States reach their southern limits a little north of our area, while a much larger num- ber of tropical species do not extend quite so far north. In the following table the large trees already mentioned in the regional descriptions are brought together in a single list, with a column for each region filled with symbols showing the relative abundance of each species there. The writer's observations are hardly complete enough yet to warrant assigning percentages to » every species, but those over 20 are indicated by numbers, and those under 20 by easily remembered letters corresponding to groups of percentages, as follows :— 10-20%, A (abundant ) 3-10%, C (common ) 1-3%, F (frequent ) 0.1-1%, O (occasional) , GOlr=0)1 7 a ehace) ian It will be noticed that these letters are in alphabetical order, so that in the table the letters nearest the beginning of the alpha- bet indicate the highest percentages. Where the occurrence of a given species is probable but not proved an interrogation point is used, and where it is believed to be entirely absent the space 1s left blank.* . The smaller and rarer trees are omitted, as are all the shrubs and herbs, because they are hardly important enough to justify taking up much space with them, and also because their relative abundance cannot be determined so accurately. . At the top of each column is given the estimated percentage of evergreens in the forests, which is believed to be pretty closely correlated with soil fertility. *A similar scheme was used for the trees of southern Alabama in Geol. Surv. Ala. Special Report No. 11, pp. 102-104. Aug., 1920. Tg GEOGRAPHY OF CENTRAL FLORIDA TABLE 20 Census of Timber Trees of Central Florida. 219 REGIONS West coast Gulf hammock region Middle Fla. flatwoods Lime-sink region Middle Fla. Percentage of eve hammock belt hammock belt Hernando S. W. flatwoods POTCEN Se ee ee Ne) ice Pinus palustris (Long-leaf pine) Pinus Caribaea (Slash pine) Pinus Elliottii (Slash pine) Pinus Taeda (Short-leaf pine) Pinus serotina (Bl Pinus clausa (Spruce pine) ~-_------___ F Taxodium distichu Taxodium imbricarium (Pond cypress) Juniperus Virginiana (Cedar) _________ F Sabal Palmetto (Cabbage palmetto) ~-_|55 Enconanalbaw? (Hickory) pease Hicoria glabra ? (Hickory) --.-------- O Quercus Michauxii Quercus Virginiana (Live Oak) ~__-____ O Quercus laurifolia Quercus hybrida ? Quercus nigra (Water oak) Quercus faleata (Red oak) _____________ Quereus Schneckii Ulmus Floridana Ulmus alata (Elm Celtis occidentalis? (Hackberry) ~--~-_ Magnolia grandiflora (Magnolia) ______ i Magnolia glauca (Bay) ____----________ ? Liquidambar Styraciflua (Sweet gum) _ Acer rubrum (Red Acer Floridanum ( Acer Negundo (Box elder) -~---------__ Tilia pubescens? Gordonia Lasianthus __________________ Persea Borbonia ( Fraxinus Americana (Ash) ~----------. Nyssa biflora (Black gum) ----------- wo ies) ackipine) ji a2 =e mr WiCypress) = 22. 3 >D Ovrrvraia (White oak?) ____- (Elim) Eee ea ee as ) a ee ate ee ECR Ow~Or- maple): lta 2 2o feo Sugar maple) _---__- (clei) hy SERS ate Bk ee Red*hay).22-2." e WAH OnONNOMORMO~OCOOCOMAPONNORANOs DHA AD DIDO DHOXAHOHDOOOAWAON AAAS UTILIZATION OF NATIVE PLANTS a o8| OR ADADORODNNOVONHOAMAAMAA Fw | for) nr _ Ot 2|x) Ov MHA mvOwW DuDDoovOQNO0O day WOOOWO AVOTHANAOHAZ|S) Lake region APOWWAA WOWOWWO yvOnNANW ie.) 1.2) ETet| Divya WD A FOO O>gls S. E. flatwoods DOOO WA WAND OOW0On WwW OAOAD W anOW OnWWH WD WH O TH BO Ady Ka] Hast coast aw In central Florida, as in most other parts of the State, the most | important industries based on native plants are the production of lumber and naval stores from the long-leaf pine and its near rela- tives. The government census reports give no statistics of these 220 FLORIDA GEOLOGICAL SURVEY——-I3TH ANNUAL REPORT industries for counties, but according to the report of the State Commissioner of Agriculture for 1913-14 there were in the 15 counties of central Florida at that time 102 sawmills and 51 tur- pentine stills. The State census of 1915 found in 13 counties (no returns on this point having been received from Osceola and Polk) 109 sawmills, with an average capital of $25,000 and 34.2 em- ployees each, and 77 turpentine stills, with $31,500 capital and 33.9 employees each. From a mimeographed directory of Florida sawmills made by the United Sawmills Co. of New Orleans and Atlanta early in 1915 the following statistics of the number and average capacity (in board feet per day) of the mills of central Florida, by regions, have been derived. TABLE 21 Number and Average, Daily Capacity of Sawmills in Central Florida, 1915, by Regions. REGIONS | No.| Capacity IS Westacoast islands aes Saeee ee ee ee 1) eee 2 <1 Gulé hammock omeoin eee so esol a eS a oe ee eee 7| 65,700 3.. Middle Plorida flatwoods: --22. 22 222522262 ea See Ol 22 ese AL (bfnin@=3M ROM ee oe SE 44) 31,136 5: | Moddlesloridayhammoclasbelt =o ees =— ann nee oe 5| 20,000 6 Hernandomhammocks belt tesa == === a= ae eee 7| 10,000 fo IDS ae eG Sooo See Se Se ee Se es 36) = 30,555 8. Southwesterm tlatwoods))222--2—2=—2a— =e en ee 20} 42,500 9. (Southeastern ‘flatwoods, =—-=-—-=2_=22 lo 22o2 22a ee 10} 18.500 US DEIR GORA Rigel) — A ee eS 1} 10,000 Wiholevares (222 see ee Oe eee Se en ee ee | 130] 31,962 Of course these figures should not be taken literally, for no doubt some very small mills, which would bring down the average capacity, were overlooked; and a mill near the edge of a region might get some or most of its timber from an adjoining region. But it is interesting to note that the lake region, the largest of all, has not as many sawmills as the lime-sink region, and they are a little below the average in daily capacity. The capacity seems to be roughly proportional to the density of the pine forests. Prob- ably at least nine-tenths of the lumber is pine, but there are a few mills that specialize in cypress or hardwoods. Besides being sawn into lumber a good deal of the pine is worked up into veneers, used in making crates and hampers to ship to bo = GEOGRAPHY OF CENTRAL FLORIDA oranges and vegetables in, and into crude barrels for fish or rosin, or hewed into cross-ties without ever going through a mill. Long-leaf pine is still the principal fuel in the rural dis- tnicts and smaller towns, and especially at ice factories and electric light plants. A generation ago it was used on nearly all locomotives in Florida, but that custom is now almost ob- solete except on a few branch lines* and logging railroads. Cypress of both species is used largely for fincies poles, piles, and cross-ties. Within the last few weeks a company owning a body of cypress (presumably pond cypress) near Cow Creek in Volusia County has advertised for 100 laborers to cut ties, the supply of timber being estimated to last five years. Cedar is or has been cut for pencil wood, mostly in the Gulf hammock region. There were cedar mills at Cedar Keys and Webster forty or more years ago, and more recently there has been a large mill at Crystai River and a small one at Rosewood. Rail fences, chiefly of pine, can still be seen in some of the older settled regions, particularly the two hammock belts, but wire fences (with posts usually of pine) are much more common at pres- ent. Another important by-product of the long-leaf pine is pine straw, used for road-surfacing material in high pine land where the sand is deep and clay and rock not easily accessible, mostly in the lake region. A few years ago a pine-straw road could be con- structed for about $40 a mile, but the straw has to be renewed every few years. ; The terminal buds of the cabbage palmetto have been used more or less for food, and they yield a coarse fiber which is made into brushes, brooms, etc., at Cedar Keys and perhaps elsewhere. Two carloads of them are said to have been shipped north from Titus- ville recently to be used for ceremonial purposes on Palm Sunday. But to destroy a whole tree just for a few ounces of food or fiber is a rather wasteful practice. Its leaves are often used to make thatch roofs on fishermen’s shacks and other more or less tem- porary structures. The hardwoods are little used as yet, except for fuel. *In April, 1920, the writer traveled from Tampa to Tarpon Springs behind a wood-burning engine. In the last few years the Florida East Coast Raiiway has run its engines with crude oil, which is almost as accessible to Florida as coal-is, and incidentally less annoying to passengers. 222 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT Turning to smaller plants than trees, some of the vines and shrubs yield berries (muscadines, blackberries, huckleberries, etc.), and some may be used for decorative purposes (mistletoe, holly, wild smilax, etc.). Honey comes mostly from native shrubs and small trees, such as saw palmetto, gallberry, and black mangrove. In 1909, according to the U. S. census, the central Florida counties produced 217,757 pounds of honey and 2913 pounds of beeswax, together valued at $17,185. The corresponding figures for 1913- 14, according to the State agricultural department, were 183, 305 pounds of honey and 726 pounds of wax, with a value of $19,822. The greatest honey-producing section in our area is the east coast strip, as stated in the description of that region. The industry is one that calls for very little common labor, and it would seem to be capable of great extension. — The Spanish moss is used in a small way for mattress making, mostly around Ocala and Leesburg, and it could be used a great deal more if there was enough cheap labor to be had. (The in- dustry is much more extensively developed in Louisiana, which has no more moss than Florida, but many. more illiterate unskilled laborers.) Nothing is known as to how much moss per acre can be produced annually under the most favorable conditions, but the total quantity in our hammocks and swamps is enormous, and seem- ingly inexhaustible. The proposed use of saw-grass for paper-making has been men- tioned on a preceding page, and a paper mill is said to be about to begin operations at Leesburg. The deer-tongue (Trilisa odo- ratissima was formerly used largely for flavoring tobacco. An old agricultural report states that 39 bales of it were shipped from Silver Springs in the fall of 1871; and some has been shipped from Volusia County within the last twenty years. The grasses and other herbs of the pine lands and prairies afford pasturage practically all the year round for large herds of cattle and a few horses, sheep and goats, and grazing is still one of the big industries, particularly in the southeastern flatwoods, as in- dicated in the description of that region, and as will be further dis- cussed under the head of agriculture. Many hogs of the “‘razor- back” variety get most of their living from roots and acorns and other seeds in the woods. ee ee GEOGRAPHY OF CENTRAL FLORIDA 223 WILD ANIMALS, OR FAUNA No description of central Florida would be complete without some account of the native fauna, but the subject is difficult to treat satisfactorily in a few pages, especially for one who makes no pretension to being a zoologist. Although an expert ornithol- ogist, herpetologist, ichthyologist, entomologist or conchologist might be able after careful examination of literature and speci- mens, or after spending a few months in the area, to prepare a fairly complete list of the animals of his particular group occur- ring in central Florida, there is hardly any one person in these days of specialization who is a good authority on all groups of animals. Furthermore, even if we knew exactly what species oc- curred in the area as a whole, existing literature and collections would be quite inadequate to show just which ones belonged in any one of the ten regions, for most animals do not stay in one place to be counted and mapped like trees, and some of the rarer or less conspicuous ones may be seen in any one region by competent ob- servers only at long intervals. And finally, even if it was pos- sible to get absolutely complete lists for each region, they would mean little to the layman, and those for neighboring regions might be very much alike in the absence of data on relative abundance, such as have been given in the foregoing pages for the commoner plants. Very few botanists or zoologists as yet seem to appreciate the importance of studying wild plants and animals quantitatively after the manner of a census, and it is of course more difficult with animals than with plants, on account of the impossibility of count- ing those which travel rapidly or whose safety depends on con- cealment. And civilization increases the difficulty, for even in such a thinly settled area as ours the more conspicuous animals, such as bears, deer, alligators, wild turkeys, egrets and paroquets, have been hunted almost to the point of extermination, for their meat, hides, or plumage, or merely for “sport.’* Birds are *Among the very few quantitative studies of our animals that have been made the second and last annual report of E. Z. Jones, Game and Fish Com- missioner of Florida, published in the spring of 1915, deserves special men- tion. It contains a table giving the estimated number of bears, deer, wild- cats, coons, opossums, otters, skunks, squirrels, quail, wild turkeys, ducks, and cranes in each county; and although some of the figures may be very inaccurate, it is certainly a step in the right direction. 224 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT among the hardest of animals to apply census methods to, on ac- count of the extensive migrations of many species, some spending their summers in Canada and their winters in South America, so that the bird population of any small area varies greatly at dif- ferent seasons.+ One might, however, make a distinction between those which nest in a given area and those which are merely tran- sients. Under the circumstances therefore the best that can be done 1s to guess at the number of species of mammals and birds occurring in our area and present a few random notes on them and other an- imals that are abundant or especially characteristic, or useful or troublesome, They will be taken up approximately in systematic order, beginning with the highest types, and with occasional refer- ences to extinct species known to have existed here in past geo- . logical epochs.? There are of course quite a number of scientific and popular books and articles on the animals of our area, ranging from the narratives of 18th century explorers who tried to describe every- thing they saw in what was to them a wonder-land, and more modern popular works on hunting and fishing, to monographs of particular families or other groups for the whole country, and short lists of mammals, birds, insects, shells, etc., for some partic- ular neighborhood. The writer has had access to comparatively few of these zoological works, and it would be out of the ques- tion to list even those few. One of the earliest really scientific works on our fauna is that of Dr. J. A. Allen on the mammals and winter birds of East Florida.* One that covers a greater variety of animals but only a small area geographically is Prof. W. S. *Two preliminary bird censuses of the United States, by W. W. Cooke, have been published by the U. S. Department of Agriculture, as Bulletins 187 (11 pp., Feb. 1915), and 396 (20 pp., October, 1916) but the author died before the publication of the second one, and little seems to have been done in that line since. tA good example of a detailed study of the fauna of a small area, but with the quantitative viewpoint almost lacking, as usual, is “An ecological survey of Isle Royale, Lake Superior,’ by Chas. C. Adams and others, a vol- ume of 484 pages and numerous plates, which accompanies the Report of the Michigan Geological Survey for 1908. *Bull. Mus. Comp. Zool. Harvard Coll. 2:161-450, pl. 4-8. 1871. Reviewed by E. Coues in Amer. Naturalist 5:364-373. 1871. GEOGRAPHY OF CENTRAL FLORIDA 225 Blatchley’s “A Nature Wooing at Ormond by the Sea.”+ Some others will be referred to farther on in connection with particular groups of animals. Notes on the vertebrate fossils can be found in Dr. Sellards’ papers on phosphate mentioned under economic geology (p. 158), and in earlier works cited therein ; and numerous references to fossil shells are given in the bibliographies in the First and Twelfth An- nual Reports. Mammals. As in most other thinly settled parts of the eastern ~ United States, bears and deer can be found in almost any county in central Florida if one goes far enough from civilization and has good luck, and stories of the latter being killed appear in the local papers almost every day in the hunting season. Rabbits, squir- rels, ’coons and ’possums are probably as common here as in other parts of the South. Noteworthy papers on our mammals have been published by S. N. Rhoads in the Proceedings of the Acad- emy of Natural Sciences of Philadelphia for 1894, 1895 and. 1902, and by Outram Bangs in the Proceedings of the Boston Society of Natural History, vol. 28, pp. 157-235, 1808. From an annotated list of North American land mammals by Gerrit S. Miller, Jr.,£ it appears that at least forty species (not counting sub-species) can be found in our area, including the opos- sum, mole, 2 shrews, 6 bats, bear, wolf, gray fox, raccoon, weasel, mink, 2 skunks or polecats, otter, panther, wildcat, 8 native mice and rats, salamander, 3 squirrels, 2 rabbits, and deer. Sev- eral of them are classed as geographical varieties or sub-species peculiar to Florida and differing slightly from the more widely distributed forms in neighboring states. These forty are only about 2% of the total number known in North America, but about 30% of the species occurring in the eastern United States. One of our most abundant mammals, very rarely seen but easily followed up, is the “salamander” (a rodent, Geomys Flor- idanus). It travels underground in high pine land and old fields, throwing up mounds of sand every few feet, but never leaving its burrows open, at least in the:daytime. This particular species is 7245 pages, 12 plates. Indianapolis, 1902. 23-22) 28 =) eae eee 23.1| 38.6] 40.1|/ 40.2) 42.5 literate q = === ee 6.5 6.4] 13.7 (eT Peelers Per cent of adult males in the following groups: otal: population g="5-5---22-- 2-2 | 30.6 30.2; 31.2|| 30.8] 27.6 Wihite population 225-222-2222. = 30.1| 30.5) 29.8 30.7| 26.9 Native white, native parents ~-_-__--- 29.5 29.8 28.0 29.6 25.7 Native white, foreign or mixed parents_ 913), { 26.0)" 26:2 18.1 27.0 Foreign, whites~ 225-22 = 25 See eS 43.6] . 52.7| 63.4 46.8] 64.0 Weenies tga aera 08 aa eh | 32.4] 29.3] 33.4!| 30.9] 28:8 Per cent of illiterates in population over 10: | Native whitey 332 Se. bate es 1.6 0.5) 2.0 el 6.4 Horeign. white 2.55522 =") oe see 14.4 4.4 12.9 Me? 8.9 Negro: 22-5 Blea ei aes eee 12.1 12.2| 25.9 15.41 30.0 men, white and black.* (The census gives no figures for national- ities in places as small as West Tampa, but the people there are probably mostly of Latin races, as in Ybor City.) And in Tampa proper among the white children between the ages of 6 and 15 there are more with one or both parents foreign than with both parents native. This large proportion of recent immigrants from countries with lower standards of civilization than ours is not peculiar to Tampa and vicinity by any means, but is common to practically all the larger cities of the United States. It is probably due at least *In 1910 only 20.8 per cent of the foreign white men in Tampa and 15.4 per cent of those in West Tampa were naturalized, making the potential voters only 70.3 per cent and 35.8 per cent respectively of the adult males. {SS ee aes 4 A OS —_— ee a ee GEOGRAPHY OF CENTRAL FLORIDA 239 in part to the superior school facilities in cities, which by contm- ually uplifting the native children tend to create a vacuum at the bottom of the social scale, which calls for the importation of ig- norant foreigners to do the necessary menial tasks, or the monot- onous routine work of semi-skilled laborers in factories. This state of affairs is accentuated by compulsory education, and is therefore more pronounced in the northern states that have had such a system much longer than Florida has.* *The following table will indicate something of the condition of the foreign population in a few large northern cities in 1910. All except Boston and New York are noted chiefly for their textile industries. © ~ S a EY) > CITIES deta} lie Me paste |iO 9 Sapien lien meh ait hel ae |e es S2loaa|s.21/6 @|F ele | gs SY SP ed S99 ee Sie (Sel OS | Oe. A ag. Ae lea lhe [Hea |4e|44/am = “ | : SOP es |p ies H Sp .: bhi Ey lh eh” a) Mil toes woe Beet i, ie ore tune (ae sa \oe setae laee| os eading foreign nationalities : ; 2 > 3 et | o 8 , oa Pees ei allie Gat a cae Peg Renae CE lec i be oe ce x 3S ads as ty fe | es = Sa Sa ee ee | eel eel a | Se a Per cent of total population:| | | | | Moreigm: wihithe,/—-==5. >. 2s | 35.9} 42.6) 48.1) 40.9] 44.1] 404) 36.1 Native white, foreign or| | | | mixed parents —--------- | 38.3] 43.7| 37.9] 39.5] 33.5] 38.2} 40.0 Per cent of adult males: | | | 1 { | Foreign white —-..-----~--- | 49.5] 63.8] 67.0] 68.1|' 60.7| 57.8] 54.7 Native white, foreign or| — | | | | maxed parents: —=---="_- | 245| 24.3] 20.3] . 22.9] 15.4, 23.7| 24.5 Per cent of foreigners illit.:| | | | | | el ONere lO aoe = | 10.0]. 28.5| 222| 11.7| 20.8) 13.2) 14.5 Adult males only -----_-- | 8.6, 23.2); 14.8; 12.0) 145) 10.7] 11.8 Most of the abbreviations for nationalities will be readily understood. Fr. Can. means French Canadians, and Can. all other Canadians. 240 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT CITIES AND TOWNS The largest cities and towns, with their total population at dif- ferent census periods since 1890, are shown in Table 23. They are arranged in order of size in 1915, because the 1920 figures are still subject to revision. ; TABLE 23. Total Population of Largest Cities and Towns in Central Florida, 1890 to 1920. 1890| 1895) 1900! 1905) 1910) 1915/ 1920 CITIES (June)| (July)!/ April) ¢July)| (Jan.) Rampage seat eee __.---| 5,532] 15,634] 15,839] 22,823] 37,782] 48,160] 51,252 Wiesterliam palpes fo! ens. hee 2,815} 2,355| 3,661) 8,258] 7,837! 8463 Siweetersbilno. == 2 sos 273 308| 1,575) 2,316) 4,127) 7,186) 14,237 Wakelandtse =) =—2= = “eee 552 ? 1,180] 3,299] 3,719] 7,287] 7,062 Onlamdonseas— 2 = seek alee ee 2,856] 2,993] 2,481) 3,511] 3,894] 6,448] 9,282 Ocal ai ae Se a i ee 2,904] 4,597) 3,380] 4,493] 4,370) 5,370) 4.914 SAO NG ees eee eye ee eee 2,016| 1,517] 1,450] 2,822) 3,570] 4,998] 5,588 Daytona! 22282 3S eee 771! 1.425] 1,690) 2,199] 3,082| 4,526] 5,445 AGT STANT Cs eee ee ee 1,086] 1,172) 1,182! 1,580] 2,157) 4,221) 2,722 Deland =- ee ee ee 1,113] 1,609} 1,449] 1,496] 2,812] 3,490| 3.324 IB Art OW are oe ea ee | 1,386] 1,931] 1,983] 1,950} 2,662] 3,412] 4,203 Blante City: cs 2o*e ee SES ee 349 2 720| 1.544) 2,481] 3,229) 3,729 iHorts Meade: == ees 267 350 261 322) L165) 321150) 2/029 SiGe C10 dy eee ee we i af Seah | ee ee x 2 2,080| 2,011 INGE adage) Vee ee se 287 500 543 750| 1,121) 2,012) 2,007 Dad es City a= eee ee 321 ? 509 794| 1,066) 1,950) 1,296 Harpony Springs 327 562 541 740| 2,212| 1,938] 2,105 Clear watery 27 ees Sees ee Peete | ee ee 300 343 610) LUA, 19321 2427 Zephyrhills: a 2523525 Se ee ee |e ee ee | ee 2 423) 1,450 577 BOOKS villi eres eee 512 608 641 709 979| 1,385] 1,011 beesburg,- Se te ees ae 722 805 765 844 991| 1,360] 1.835 Mat swalllas, | Ve ste Pe ees 746 831 756) 948 868} 1,310] 1,361 Wma ers DEV at vie rales eae Ea ee eee | ees 375 ? 1,226| 1,597 US tis see ee aes ay So a ee ee 563 411 529} 910) 1,148] 1,193 Mullberny. ees. 22 kee | ee | ee ee 850] 1,418] 1,121] 1,499 IPois, Aaron, Cinmy ee Soe I oe 1,111) 1,367] 1,049] 1,343] 1,071] 1,030 These actual figures should not be taken literally, for much depends on the area included in the city or town. And an exten- sion of the city limits, which is a rather frequent occurrence, may make an abnormal apparent increase between two successive cen- suses. The apparent decreases in the population of Lakeland, Kis- simmee and Dade City between 1915 and 1920 are hard to under- stand, unless the areas covered by the enumerators were smaller at the latter period, or there was some error in tabulating the returns. (The increases in some. popular winter resorts at the same time are doubtless due partly to the fact that the census of 1915 was taken in summer and that of 1920 in winter. For al- though the census is supposed to count only bona-fide residents, ~— ee Se ee GEOGRAPHY OF CENTRAL FLORIDA 241 many people spend about half the year in Florida and half in some other state, and are therefore entitled to be counted in either place. But when we take several cities together such errors (except the seasonal one last named) ought to offset each other to a con- siderable extent. And it is safe to say that the population of the ten largest cities (which were not the same places each time, though) nearly doubled between 1890 and 1895, decreased a little in the next five years, and then more than doubled in the decades 1900-1910 and 1905-1915. The increase from 1915 to 1920 was less than 15%, but the rural population at the same time was practically stationary, as seems to have been the case in most other states. The ten cities or towns next in rank did not seem to be af- fected so much by the freezes of 1895 and 1899, strange to say, and they just about doubled every ten years between 1895 and 1915, but gained very little in the last five years. WINTER RESORTS The mild dry winters of peninsular Florida naturally attract many visitors from the colder states, and they are an important source of revenue, ranking in that respect close to the products of the phosphate mines, forests and farms. It would be very dif- ficult to estimate the total number of “‘tourists’” that visit central Florida in an average year, but the average maximum number that are expected at any one time in the height of the season may be guessed at by means of the hotel capacity.. Of course all the hotels are not likely to be filled at the same time, and many if not most of them are open all the year for the accommodation of com- mercial travelers, etc. But at the same time no hotel directory is absolutely complete and up to date, and there are many winter vis- itors who rent cottages or even live in tents, so that the indicated hotel capacity is probably as good a measure of the tourist busi- ness as can be found.* *The tourists are presumably all white (and mostly adults), though the negro population must be augmented a little also in the winter season by a certain number of waiters, porters, etc. 242 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT A “Guide to Florida” by Harrison Rhodes and Mary W. Du- mont, published in 1912, devotes 27 pages to a hotel directory of the State. There is no explanation of how complete it is supposed to be, or whether the rates quoted are American or European plan, and in some cases either the rate or the capacity is left blank. But the towns and hotels omitted are mostly very small ones, and the rates in nearly every case are evidently American plan, and the list is useful for indicating the distribution of the tourist business and calculating the average cost of board in each region, if nothing else. According to that there were within the area under consid- eration accommodations for 15,680 visitors, at an average mini- mum rate of $2.47 per day, American plan.* About 11% of the rooms were in the lime-sink region, mostly on the coast thereof in Pinellas County, 23.2% in the lake region, the same in the west- ern division of the flatwoods (mostly at St. Petersburg), 35.6% on the east coast, and the rest scattering. The average rates per day were about $3.00 1n the lime-sink region (one hotel on the coast contributing a large part of this), $2.21 in the lake region, $2.00 in the western division of the flatwoods, and $2.88 on the east coast. (Of course to convert these figures to present-day prices they would have to be multiplied by about two, on account of the depreciation of money during the recent war.) A winter resort directory of the South issued by the Atlantic Coast Line for the season of 1914-15 seems to have about the same degree of completeness as that just mentioned, and the num- ber of hotel accommodations in central Florida listed in it is about 20,000. See Ces. 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Jeg pane Tia tidnd 10d souvpuoqyye step osvi0ay Sn eS ae ee (skep) Ute} Jo YySus] VsBIBAW ate as IZ puv g jo sosv uoaMjoq ‘og lea test payors uorzerndod o4rya Jo gue Jag ------------ aqrya stidnd palforue jo 4ue0 10g ($) uorgetndod ogrqa jo vyidvo sod sfooyos 10F aangrpuedxe [enuuy BE ihe a Paks, jooyos Jed smoor Jo aaquinyy 2 ae ($) SSurplinq [ooyos jo onjea aseviaay STOOHOS ‘suorsoy Aq. ‘OT-GI6L “Vplto, [ecyueD JO 8014819749 Cz WIAvL lopt §=s lop SsésZ | sos | og | 298 | Fog | gz | &6e | Ser | greg | O02 poe ee nae ter |€or larg pe aoe fee n =7 Sa | RE | BE amr ® 5 a5 ales am (<) 5 OLLTH MA g JooypY, oqng peze]eg > ee . 252 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The differences between different regions agree pretty well with those brought out elsewhere in this report about the compo- sition and density of population, illiteracy, agriculture, etc. The western division of the flatwoods leads in several things on ac- count of containing our largest city, for city schools of course are usually larger and more regularly attended than country schools. The differences between central Florida and the whole State are not very pronounced (if comparison had been made with the rest of the State instead of the whole State the contrasts would have been magnified), but they are nearly all in the direction of larger and better schools, older, more experienced and better paid teachers, better attendance records, etc. Comparisons with other states would involve considerable labor, but central Florida is evi- dently well up to the United States average in most respects.* The government school statistics available do not separate the races, but in the whole country about 90% of the population (and probably a still larger proportion of the school population) is white, so that figures for white schools would not differ much from those for all schools. When the sparse population of our area is considered its excellent showing in school matters is rather remarkable. . In Figure 43 the school population of central Florida and the whole State, not counting the chart or kindergarten grade, is di- vided by races and grades. The curves are cumulative, i.e., the distance from any point on any curve to the right hand margin indicates the percentage of pupils in the group designated that have entered or passed through the grade selected. Consequently the percentage enrolled in a given grade corresponds to the hori- zontal distance between the points where the curve cuts the upper and lower boundaries of the grade. The curves are all steepest in the upper grades, on account of the inevitable dropping out of pu- pils all along, though in some counties there are a few more in the *In comparing Florida with the rest of the United States it should be borne in mind that most other parts of the country are colder and therefore require more substantial schoolhouses and greater expense for heating them. Se ee ee GEOGRAPHY OF CENTRAL FLORIDA 253 fourth grade than in the third, or in the third than in the second, probably mostly on account of families moving in with children who have already been to school a few years+ SCHOOL POPULATION CURVES 1915 -19i6 CENTRAL FLORIDA WHOLE STATE PERCENTAGES Fig. 43. Graph showing percentage distribution by grades of white and negro pupils enrolled in public schools of central Florida and the whole State, - above the chart or kindergarten grade, 1915-16. In this diagram the same superiority of whites over negroes and of central Florida over the rest of the State already brought out in several other ways is apparent. A similar curve for the whole United States would be so close to that for whites in the whole State of Florida that it could hardly be separated on the small scale used here. ; Private Schools. There are quite a number of private schools, but only those of collegiate grade-can be mentioned here. Very little statistical information is given about some of them in places where one would ordinarily look for it (such as recent issues of the New York World Almanac), but in order of size or reputa- tion, or both, they seem to be as follows: John B. Stetson Uni- versity (Baptist), at DeLand, with about 37 instructors and 500 students ;.Southern College (Methodist), at Sutherland in Pinel- las County, with about 24 instructors and 210 students; Rollins College (with Congregational and southern Presbyterian affilia- tIf the entire population could be graded in this way by the census the results would be extremely interesting, but to the best of the writer’s knowl- edge that has never been done except in Iowa. 254 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT tions), at Winter Park, with about 20 instructors and 200 stu- dents; and St. Leo College (Catholic) at St. Leo in Pasco County. All of these are located in regions of much scenic beauty, and they draw a good deal of their patronage from colder climates. NOTED PERSONS If ‘“Who’s Who in America” is a reliable criterion, central Florida leads the rest of the State in number of noted persons, as it does in schools and many other things. The 1920 edition of that work lists 41 persons who have homes in central Florida, which is about one to each 7,000 of the population, as com- pared with about one to 10,000 in the whole State, and one to 4,500 for the whole United States. If whites alone were consid- ered the ratio would be about one to 5,000 in central Florida, one to 7,000 in the whole State, and one to 4,000 in the whole coun- try. Just how many natives of our area are listed it would be impossible to tell without examining over 20,000 _ biographical sketches, as they are not indexed by birthplaces. —_— GEOGRAPHY OF CENTRAL FLORIDA 255 . PERCHES Statistics of churches have been gathered by every United States census from 1850 to 1890, and later by special inquiry between the regular census periods, in 1906 and 1916. The information is ob- tained not by asking each person what church he belongs to, if any (which is done in some European countries, but would be repug- nant to American ideas), but by correspondence with church of- ficials, It is therefore hardly as accurate as most census data, but it will suffice to show the prospective settler what to expect here in that particular. A source of considerable uncertainty is that different churches have different criteria of membership, some counting all baptized persons, including infants, and some only those who have joined the church voluntarily. (If the statistics were restricted to adults we would have a fairer basis of comparison.) Another minor dif- ficulty is that one comparatively new denomination (which has quite a large following among persons of leisure, mostly in north- ern cities) refused to give any information about its membership for the enumeration of 1916, according to the census volume. For these reasons it is hardly worth while to estimate the ratio of church members to total population, but in most parts of the United States it amounts to less than half. The data for 1916 (published early in 1920) only are used here. It would have been more or less interesting to give some 1906 figures for comparison, but the differences probably would not be pronounced enough to warrant the extra labor, and in 1906 the white and colored Baptists were not separated in the county tables. The leading denominations in each region have already been indicated in the regional descriptions, but without giving per- centages, on account of the uncertainties mentioned above and be- low. For this reason-the regions are not contrasted in the follow- ing table, which gives statistics for the whole State, central Flor- ida with and without Hillsborough County, and the city of Tampa by itself, the last to illustrate conditions in a city with a large for- eign-born. population. 256 FLORIDA GEOLOGICAL SURVEY— {13TH ANNUAL REPORT White and negro churches are tabulated separately, but there is some uncertainty about apportioning the Northern Methodists, both branches of Presbyterians, and some smaller denominations between the two races, for the census did not divide these accord- ing to race for areas smaller than states; but it has been assumed that the ratio between white and colored members is the same in central Florida as in the whole State. Denominations making up less than 1% of the total church membership are here grouped to- gether under the head of ‘‘all others.” The figures in the table are percentages, and should add up to about 100 in each half of each column. TABLE 27. Relative Strength of Leading Religious Denominations in Central Florida, 1916. Central Florida "eh ae Or. loi eRe Ss meuet 2s| £ |/#28| 28 BH | 8 |ERO| Se WHITE CHURCHES | Adventist (2) branches), —=——=——-=— fee ae ee ee 1.6 ee il 1.9 Souther! (Bap Uist == a a re eee 30:9) 29:0)" 3128) 20:2 BraMitiviexebal puis Usee= =e = eee ee eee 1.0 1.1] 1.0 0 Ghurchwot 7Christyee= 2-285 22s eee ee eee 1.5 1.4 1.4 1.0 Disciplessoty Christ) ===2=s== Sot oe ope eS i eS 2.0 2.4 2.6 2.3 Coneresaitionallist: s2222-- S222 See ee 1.5 2.1 2) 0.7 Greek: (Orthodox) = 2)4 253 se ee eee 0.9 2.4 3.5 0 Methodistay¢Northenn)\ =22==22)22 = 2.3 3.3 2.4 1.6 Miethodiste cts Outi ery) ee see ene ee 27.6 28.2 30.2 28.6 Eres ytertany a((Nonthierm)) jee sa eee eee eet 1.2 1.6 2.5 0 Presbyterian ((Southern)je== 22. === eg ee 5.4 5.7 5.7 7.4 Brotestante Episcopal 222222 = = eee 4.9 4.9 5.0 6.6 Romany. Catholic: = -222 28 322 S32 ee Se ee 13.0 13.3 6.8 13.7 Al others j. 22u nia ee ee ee eee 6.2 33) 3.2|. 15.8 Necro CHURCHES Nationals Baptist, 2222 ee s= Bas ae ee |e 050 | e004 S10 aeerone Brimitive (Baptist: 222-225 Ss SS ee eee ee 2.5 6.9 3.2 0 Northern Methodist) {222232222222 5.8 6.9] 8.8] 15.4 Atrican ¢ Methodist 22" S"- 225 2 5225 See ee eo one 28.6] 26.3) 25.8] 29.1 A Mi Ws Zion 2 Se ee SS ee ee Se 8.4{ 11.3) 12.1 7.5 Colored “Methodist 2-8 = 22-2 52 Se eee ee ee 2.0 1.4 | ela Presbyterian «(North ern) gs ee ee | 0.2 0.2 ? | ? Brotestants Episcopal, 2= es ae 0.9 ? re 3.1 AN others? 22 2>'-s.5322 -2 3 = se See | 2 al ? GEOGRAPHY OF CENTRAL FLORIDA 257 The figures for Roman Catholics seem surprisingly small for Tampa, with its large Latin population, but if West Tampa was included the results would doubtless be different.* The only Greek church reported in central Florida in 1916 is in Tarpon Springs, and claimed 1,500 members; but it could hardly seat a third of that number at one time. Outside of Tampa and its suburbs and other cities the Catholics seem to be most numerous along the western edge of .the Hernando hammock belt in Pasco County, as indicated in the description of that region, The Baptists and southern Methodists have their greatest strength in the rural dis- tricts, as elsewhere in the South. POLITICAL PARTIES Without going into historical details, or making allowance for inevitable periodical fluctuations, we may take the results of the presidential election of 1916 as a fair indication of the average political complexion of the white population of central Florida (for comparatively few negroes vote in Florida now) in recent years. In that election 67.3% of the votes cast in the area under consideration were Democratic, 19.7% Republican, 6.6% Social- ist, and 6.2% Prohibitionist. The proportions for most of the re- gions vary so little from this that it is hardly worth while to tab- ulate them,; and those for the whole State are almost exactly the same. In 1920, when conditions were somewhat abnormal, about 60% of the vote in central Florida was Democratic and 30% Re- publican, and conditions in the whole State were very similar. *The city of Tampa contains over half the population of Hillsborough County, but only 28.3 per cent of the Catholics, if the census figures are cor- rect. Most of the remainder may be in West Tampa. The principal exception is Osceola County, where the Democrats had a safe majority in 1912, only a plurality in 1916, and a minority in 1920. (Only two other counties in the State had Republican majorities at the last election, and they were both farther south.) 268 FLORIDA GEOLOGICAL SURVEY—I13TH ANNUAL REPORT AGRICULTURE CONDITIONS PREVIOUS TO 1887 Although farming has long been one of the most important in- dustries in central Florida, as in most other parts of the United States, it has had its greatest development only in the last few dec- ades. In 1850, when the number and acreage of farms was first re- turned by the census, there were only about 600 farms in our whole area, and over half of them were in Marion County, presumably in the hammock belt, which has the richest soil. Only a little over one per cent of the whole area was in farms, and one-fifth of that im- proved, making 2.66 improved acres per inhabitant, which would hardly be enough to feed the population if they depended entirely on field and garden crops for their sustenance. As there were no railroads in peninsular Florida then it is not likely that any ap- preciable quantity of food was imported, but fish and oysters con- tributed something to the larder of people living near the coast, and in the interior grazing cattle and hogs in the pine woods seems to have yielded more revenue than tilling the soil. Large plantations worked with slave labor, such as were common in other southern states, were almost unknown here, except for a few in the ham- mock belt north of Ocala. | In the next ten years the number and average size of farms nearly doubled. Marion County still had the lion’s share of the farm land and buildings, but considerably less than half the total number of farms and live-stock, showing that the farmers in other counties depended more on meat than on vegetables. The develop- ment of agriculture in central Florida as a whole from 1850 to 1880 is shown in Table 28, but the regions cannot very well be separated on account of the large size of the counties in those days, as already explained. The number of farms more than doubled between 1860 and 1870, but their average size decreased, doubtless because the Civil War made many former slaves farm proprietors, and their hold- ings were naturally smaller than those of the whites. The amount of improved land fell off between 1870 and 1880, but outside of Marion County there was an increase, which would seem to in- dicate that the rich hammock lands were becoming impoverished GEOGRAPHY OF CENTRAL FLORIDA 259 TABLE 28. Agricultural Statistics of Central Florida, 1850-1880. 1850 | 1860 | 1870 | 1880 Deni eent) of lang. ane tania = Soe en Pree, Fes) |S 76. Rec cent, ofmandanimnpnoavicd a= —2—=— ees = ane 0.2 1.0 20) bl eelee Improved acres per inhabitant ---_____----------- 2.7 4.6 6.7 3.1 ible orheaiys) jee tena) 2 ee 12.6, |) 17.3 \- 10:0 8.7 Motalmachess pempianm@ = ooo. eee SEE e eee 172.3 | 291.6 | 187.6 | 136.0 IMproveduackes perwtarm, =o s.o ee ene 33.5 | 79.5 | 66.6 | 27.6 Value of land and buildings per farm ($) ~-------- 1195) 2550 578| 1354 Value of implements and machinery per farm ___-~ 172 119 42 29 Value of livestock, poultry, etc., per farm ~---~-~- 696} 1149 583 278 Number of slaves per farm —----- JES pei ia SR ES a 208 ey a aloes Number of horses per farm -~---~----------_---- 1.8 2.2 1.1 1.2 Number, of--mules per farm: 2222) 22-2 a2 ae Se 0.5 1.5 0.7 0.2 NUMIDers OLeWORGlOxXeny sae soe soem aon ee ee 0.9 0.7 0.3 0.7 Number of milch cows per farm ---~------+------ 22.4 | 27.4 6.1 1.7 Number of other cattle per farm ~-------------~-- 74.1 | 102.0 | 50.0 | 26.4 Number of sheep per farm ----__---------------- 0.8 3.2 0.4 1.4 Number of hogs per farm ----------------------- | 374 | 43.0] 13.5] 13.2 Number or penckenssper farm 202-22 ooo el |S oe |e 2} == 16.0 Number of other poultry per farm --------------- yetaeee: Pe ese jeeet 5.7 Expenditure for fertilizers, per farm ~------------| ,-----| ------| ------ | $ Value of animals slaughtered, per farm ---------- 295.60] 154.00] 42.40 Value of orchard products, per farm ------------ 0.26] 4.09) 6.17 $285 Value of market garden produce, per farm ------- | 0.47| 0.61 0.044 Value of, staple) crops, per farm i..-------------- apne ae) ceo eet ees Mie from long cultivation, and the farmers were seeking fresher fields elsewhere. At the same time the number of farms nearly doubled, perhaps indicating a large immigration of small farmers from northern Florida or other states and countries. In 1880 commer- cial fertilizers were just beginning to be used, the expenditure for them the previous season having been at the rate of 11 cents for each acre of improved land in the whole area (only about 2 cents in Marion County, and none at all in Hernando). CONDITIONS IN 1889-90 AND 1894-5. The establishment of Citrus, Lake, Osceola and Pasco Coun- ties in 1887 made it possible to use the 18g0 statistics for separate regions, as shown in Table 29. But the percentage of farm land and improved land cannot be estimated accurately for those re- gions that cover less than half of any one county, which accounts for some blanks in the first two lines of figures. I3TH ANNUAL REPORT FLORIDA GEOLOGICAL SURVEY 260 ce) levee ese = ogee alyro? = tees | |GOrMer pace @ lcci Sea. 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Ee Soe ease) el Oro Se eae SC iBI ae Creal eats een ena sSoy jo raquny 101 |00'T O-—-\8¢'Os"|6G°O:= “E00: 109 Tall 00 ieee 00 fees DE ce eer Da eee ite ter syvo8 jo soquiny Oak areata Sc eta Aa a Pe ge rete fo |¢r'0 10 dod oro (sto isto |zto0 (zo (lero ene ro tog SOT 96'T Ww OL*% FO'T 98°0 OFT GOT 99°T GSHL.- gi Sas Sehr sera en eres a 80S Loquan NY id et Hci HSL SIE eee OUT Seer al OE oe Ra se GeiaeN ERTS Te SUES a9} Ro eee & nN 6sé 96h lope [0% ee 00% . leLP og Thay ceeangrian se sss Son Bape aro cel love leot ises irre ist lee loos lpoe tee [--n---z----- wey iad smoo Aarep jo rquny giz. ioe. “lose. joree “Igaz; lnog - |0ge = 1902 eck IBER We tse a aaoee a ‘aga ‘Aazynod ‘yo0q8 eatt Jo onpeA € SF \ler E 6S LG oF bP Ise gs Mars gio Adourypovut puke Szuoupdwur jo onpe, apa. ove.» Sel. > 4er loot ss lele) “l0ee = Ole eciaton s\0G) Ass aetna eee wavy tod sSurppmq jo onpe, 91 Se1t |lo89z lo6tt lo6zt lozet |o6¢ CGY .. 1RRRS IRDO SAA eace ae aie ener ar wavy tod purl jo onpe, 90°2. looer jloeeh jyoy- loorez jogat leas |eo'9 [O75 owg: [ee (¢) oa aod Purl fo ante, VLE | Es || SIT Hi | g'¢T | L0Z | 8ZZ | 8°82 | L3é | OG aks oo oa o wae} sod sate ee O'LOT | S98 ore9 Sel O' LL a0 pete Gare 6.620 910-400 dG BON: algae meaten gta eae nia wavy tod sa.to eal hee 0708 | 006 | Teg | as4 MeS | 6:e) UF 18. NOS ilae sae oes S10uUMO JIvd puv S19OUMO JO YUOd Jog 699 | LI8 Tree |e'00 epee |. azo lene | FOR Cee SOIR ol Sosa ee eee oe apIYM SlowIVZ JO yUed Jog “CW alia of] ea) ck ea os oe eae ORE Otte OG 1G olee ees wal anes eee pers a wing tad szueziqeyuy 18% | LST fee 2106 Szin pois IBC ee KOC Seed eee e se kes queqiqeyut ted sare poaoidwy gare bk pt arg | are ee G0 9% GEG Son then ced) |e ahs | Og ro mee ach on ee peaordut pur, jo yued 13g ih a LS Sia Girs Noe Gee leas cae ete ene | 8'1Z Wh peep ery oL6 SUI] UL pu, JO Fuad Jog eo | oe | Se sep es oR ie ape | mee = -o | Bs | ~ 3 3° CoN oS BS oe P 16 SNOLDGY 2 ey 3 | a i re | RP * QUGT-668T ‘SUOFoy Aq ‘eplIOTy [wAyWED Jo SONSRIG [eINg[NOLIsy ‘I€ AIdvL 17 t) 264 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT The Middle Florida hammock belt has negroes in the majority among the farmers, as in total population. The eastern division of the flatwoods leads in live-stock, as before, and the east coast strip in value of farm land and intensity of farming, despite its rather poor soils. The State census of 1905, under the direction of H.S., Bitters gave much the same sort of information about agriculture as did the federal census five years before, and under the head of live- stock made a distinction between “‘native’ and “thoroughbred”’ cattle, though the oxen and dairy cows counted may be of both kinds. But the total value of livestock in each county is obtainable only by adding up the figures for several different kinds, which has not been done, as it would involve some duplication for the reason just mentioned, and besides, the live-stock values are more or less interspersed with other things in the county tables, making it rather irksome to pick them out. It would be a still greater task to get the quantity and value of various crops and animals for the whole State, for that would necessitate adding the figures for each kind for the whole 46 counties, which was not done in the census volume, In getting the total value of farm products there is still another difficulty, namely, the county totals as published seem to include not only crops and animal products, but also the value of all animals on hand, which makes a considerable exagger- ation. The number of white and colored farmers was given, but no | separate statistics for the two races. As in the other State cen- *Mr. Elliot, who died June 24, 1920, had charge of practically all the sta- tistical work of the State agricultural department during the last thirty years of his life, and was the author of a 59I1-page handbook of Florida published in 1904 (see our Third Annual Report, p. 363), and of numerous short articles. He was well informed, careful and conscientious, but too modest to attach his name to his handbook and census reports, and too good-natured to ins‘st on the printers and others who worked under his direction doing their work properly. And some of the typographical and other errors in the census re- ports are doubtless due to his being inadequately supplied with clerical assist- ance. There is a brief sketch of his life in the Quarterly Bulletin of the Ag- ricultural Department for July 1, 1920, but it was gotten up on too short notice to do him justice. ae ee ait at ae Be es Ed GEOGRAPHY OF CENTRAL FLORIDA 265 suses, typographical errors make the figures for single counties .or regions unreliable, but of course they do not affect the totals for the whole area so much. In the next table, as in that for 1895, only three columns of figures are given, one for central Florida, one for the rest of the State, and one for the whole State. St. Lucie County was cut off from Brevard shortly before this cen- sus, making the area to be included in central Florida smaller, but not materially affecting the ratios. TABLE 32. Agricultural Statistics for Central Florida and the Rest of State, 1904-5. Central | Rest of | Whole Florida | State | State Rericentsot land: intfarms eo SNe ee eee Dawe 2 FT is Ey a a Tf Pence Gt alancd improved ss — Se 2 lo eee Be 4.25 4.75 4.62 Penrcentaots tarmense whitey e.- ==! 525 vos se eS 83.0 64.2 68.7 Per cent of farmers owners and managers —_~-_---______ 91.0 69.1 74.2 Improved: ‘acres per inbabitant ~~~ 22-2. 24-- 2.38} 2.73] 2.64 imibabiianess per pieeMm, 2 ese ee San era 12.3 13.4 Average number of acres per farm 222.20 25.2222 0 6 5_ 129.5 97.0 | 104.6 Averupenimiproved.actes per farm, s2-2-= 2 2 eee | 418 33.6 37.3 Value of farm land -per acre ($) --4-----1-----_-,---- 9.48 7.41 7.96 Wulnevor land: per sfarm 2 2.i 2 2 1226 721 872 Male on pilldinos persaiimrm), 92) 22s 2 ee 8 | 360 193 247 Value of implements and machinery ~---------------_~ 49.00] 36.80] 41.50 bile Se ibe labor 1904-5) per: farm 22250 ---v se oe | 58.30) 40.50) 46.65 Expenditures‘for fertilizer per farm ----------_----~_- | 62.20) 35.40| 43.30 Expenditures for labor per acre improved ~---------__- 1.39| 1.20 1.25 Expenditures for fertilizer per acre improved ~-------- 1.49 1.05 1.16 Number of horses, per, farm -22) 222 28s ee IR ZA pe cNeier [pis Me = Te INSIH ERT Of eBttles fe a hot ee te hs oe ee a | 56) | ee ee eee Nim beDy Or work oxen) 2 5o20 2 52 ee ee | JY) ae eohae al gee a Number vol; dairy: cows 225-24 83 2 ae ee OMG A ee eee ys ae Number or snative’ Cattle <2 43222 2 ete ee. PL s1\ ee eee tees tee Number of “thoroughbred” cattle ......-.....--..--.- | 2s eee en iad es NMEMOEY SOLR SHOR ply hui see os ee pie Ce as a fe DOO teen 2 (Wye eate Number of goats -_------- pee ots Se Be ee de Ve Oe WO 2 | ees eee ie eee oe eQeE Tas U1e) meh) Gh C0) = WE MepMae 6, Soe Desa Ses Ras ae Seo et DON at EO:OD I eee |e ee INUTEBErOGh TCHIGK ens) 225222 be soo ot Ss es 40:30|f)-22e elena Wimbersof other poultry —2-5..21.2-2 2-225. 5 =-8L- SOS note potas fel Nimibersor colonies: of bees 22-22 sen O22 See As before, central Florida leads the rest of the State in per- centage of white farmers, size and average value of farms, and in- tensity of farming. 266 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT CONDITIONS IN 1909-10 The federal census of 1910, supplemented by a special report on- negro population published late in 1918, affords enough mate- rial for several tables, one for all farmers as before and two for whites and negroes separately, besides somte for crop values, crop yields, and animal products. Statistics of a few kinds_for owners, managers and tenants separately could also have been compiled from the same returns 1f it had seemed worth while. The blanks near the top of the first table are due to lack of correspondence between natural boundaries and county bounda- ries, as before. In the negro population volume the returns from counties with less than 100 negro farmers are less complete that the others, so that some blanks had to be left in one of the tables for that reason. As these are the most complete agricultural statistics available at this writing, they will be used to illustrate some general princi- ples which have been passed over rather hurriedly in discussing the earlier censuses. The percentages of farm land and improved land are doubt- less highest in the most fertile region, the Middle Florida ham- mock belt, though there are no statistics to show it, because it cov- ers only a fraction of one county. The number of improved acres per inhabitant is highest and the number of inhabitants per farm lowest in the Gulf hammock region (if Sumter County is a fair representative of it), indicating that agriculture is most important (relative to other industries) there, though the hammock belt would doubtless lead in this respect too if it did not contain the city of Ocala. The other extreme is in Hillsborough County, which contains the largest city. The largest farms are in the eastern flatwoods, where there is a superabundance of “elbow room,” but five-sixths of their area there is unimproved, mostly cattle range. The lime-sink region, where land is cheapest (and easy to cultivate), has the most im- proved acres per farm.* The east coast strip represents the other *Conditions there resemble those in the Mississippi Valley in that low ex- penditures and returns per acre are compensated for by the cultivation of a large number of acres per farm; this being extensive as opposed to intensive farming. GEOGRAPHY OF CENTRAL FLORIDA 267 extreme as far as central Florida is concerned, for reasons appar- ent after reading the description of that region. The east coast has the most valuable land per acre, but is sur- passed a little in value per farm by the eastern flatwoods, where the farms are over five times as large, on the average. The east coast strip also has the mfost valuable farm buildings, and there- fore presumably the highest standards of living, and the lime-sink region is the other extreme, as far as the statistics show. But in value of implements and machinery the east coast is lowest, on ac- count of the small farms worked mainly by hand labor; and the lake region ranks highest. The eastern division of the flatwoods, being still mainly in the pastoral stage as far as agriculture is concerned, is far in the lead in the value of live-stock per farm, as well as in number of cattle, horses, and sheep. The Gulf hammock region seems to lead in dairy cows (though this may be due to some error in the census, as suggested elsewhere), the Middle Florida hammock belt (with the largest proportion of negroes) in mules and goats, the lime- sink region in hogs (as in corn and peanuts), and the east coast in bees. The east coast has the highest expenditures for labor and fer- tilizers and the lime-sink region the lowest, but no region in cen- tral Florida spends as much for feed as the State average, perhaps because there is more winter pasturage here than in northern Flor- ida. The east coast also leads in value of crops per farm and per acre, while the Hernando hammock belt is lowest in crops per farm and the lime-sink region the lowest per acre. The east- ern flatwoods and the east coast strip, although adjacent, are opposite extremes as far as the value of animal products is con- cerned. The value of crops is roughly proportional to the value of land and buildings, and inversely to the illiteracy percentage, though if different states were compared some exceptions to this might be noticed.* *For some statistics of farm expenses and receipts in different regions in Florida and in several other states, with a regional map of the State and a discussion of general principles, see the Quarterly Bulletin of the State Ag. ricultural Department, vol. 30, No. 4, pp. 14-26. (Nov.) 1920. I3TH ANNUAL REPORT FLORIDA GEOLOGICAL SURVEY 268 8L0 =: [090 LUE IRD OF FOL GLO Ore POLE |OE 00m 4|0G0) a Ook ren occa SoS aa sa0q JO SelUO[OD FO JequINNy 0g pBaie || seh Seger Se | etealr Oe lea UG aalseic | oy cullen. = ee a eee a ene Aaymod jo saquiny S9E | SOT || 9 S91 | 66 BG O'S oe nL Pelee | lee ce eae sSoy JO Joaquin G0r et lene el ta etlavel OSs VP ar SitOige |G) ete ee een ote toa ees syvos JO JoquinN ice lone: oa) | eee leRiOe eer) ZO oT Gg Te Oi... |= ee ae eee deeys JO Joquiny s*o 0 ra) ee OeelecOm ul Oe eae 0 | Boo lwo) oS a - sofnu jo Jaquiny 60 Gil wh ae ree Geen On G0 nce GT 91 oy ee ae ae re . “OY Jo Jequinyny OPE a Rese 22P. ORO OT] .8:OD let eee ley ele eo'Oa es TOP | saesceeee eee teams aqyyeo . Yo Jo saquiny &% CG 40 |o¢ GT Tale le Ocleee eCommerce PiQinl agrees Tee er wavy tod SMod A. (ep Jo roquInN Ip s6p =| |OFe lo60z = OPP 80P elP FSP 8G Siena leaaeaes oes ‘oqo ‘Aaq]nod ‘yoo}s aA] JO onlTBVA 68 git ||Z8 166 IG2t Ler = |g FOL 86 Ci Bl eaacmes « Atouryowur pue syuouojdut jo on[e, 68P g99 = ||S4¥r_— lege 6F9 ~—«- |600T_—«|F6F ZOF Ore Or al=s—- SS Se wavy tod ssutpying jo on[e,A e181 |oroge |loes¢ |oSSo lopee losse sist |ippr [0472 |etg, |--------7------ wavy iad puvy wary Jo one PS LT -l0L'e \|9446. icete leceo lost: lege. |ierr |9&4 — geet |= s--- 2 = (g$) oro sod pux, wey so onper T9e | SF CE | Oise Ged PBT epode INGiOr= | Ciera eb OG! one ceteemeeertae alates wavy Jed sesoe poaoiduy SOiCOTaeG6 eel| SiG: rnGQZOE [Ni -2ee ai eize RON 1-4 TONS Oleei | cnlONlc on aeien ae cease wavy Jod se10v aSeieAV 10m nO Olea||e4e > | OL. AeGigi Gey Fl [eh 4 18a us| Sac anes eae Squvue} SLoMIv} JO JUeD Og OGeo a) Lage || MOOk ss e OP. el Ook | Gilone | (ase LEO sel GEO | agen cee SloSvuvU SIoULIB Joye. 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Jeg | D WO); GS) Ba) azn) & ges Peis pel SA saa lee) ee ee ee | gel Sa) F | ES] EE | RE EE Po | Bs 3 3° Ber ee P| 8 SNOIDEY pe ° 3} Oy °o 4 } fe e Pee cas * ‘OL-6061 ‘Suorsoy Aq “Bprio],T [eAzUED JO SorqsIZeZG [ANg[NOTIsW [eVseue;) CC alav1 269 GEOGRAPHY OF CENTRAL FLORIDA ‘ge |jofrorr \go'Te: ‘easy loner lois “loots: [Or?z ‘0962 \-ssen- as ee ee O16I | | | | | | ut peaoidut aioe sad ‘E96, UL sdoro Jo ante, GMO ke (LLY SRS leo eT 990. oe 0 Sl0b Tt ale aee eet a meneree er eames peey JOT |Sten eee 060". ee ihe WOW 1890 loge |s- e TozI[I}4oy Log pros \oroe “lds 0 sao l0e 0G Gre ee ee lk MiGaige |e aa mean a serene ae oqel 107 | | | leone | | | ‘OI6T Ul poaordmr osov aod “gO6, UL yuedy 99 jove logt tat leer lest lees sg |---- of6T warez dod ‘syonposd jemmue zo onped |sséx lees loe9 lose (€4" \ecg loza ees |-------- OGL wavy tod “GOGT Ut sdoso Jo onteA ts ios ([4tr log log (9¢ [ye gp |-------#7 BU SRonsare ser a Ree poey 10g lebr SF lsot leot ize \19 |o& 6Gtel Oa oe 2 oe ee SLOZI[I4lof 107 ilv6z__istt__ise___—iloet__izg__—silost_ oS —eggt__|-($) soqet 203 ‘ore1 uf mares sod ‘e061 ui queds 2) se | an pace?) l= Sin | oe aa | eo : e est a\p ep 2 © = se | Be | p 88 |ge [gs] o | 2a |e | ee lee 7 o $ 8 3 5 5 ihe SNOIDAY a bo: |: pea wr ‘OT-6061 ‘SuoIsoy Aq “eprtopy [eazueD jo sorystzezg [eINyNoIsy [e10UH ‘GHONILNOO—EE Alavi _ pine —_— ee a Se eee ee TAL REPORT 13TH ANN FLORIDA GEOLOGICAL SURVEY 270 OGL ZL 960 OOF Ig'0 F6'0 8G 60T 919 068% E881 6% e'9 Z'0 £0 | €'0 i LG 821 OFL 06 I OVSé 09'€€ PGS --+--- AO eRCE ae bps ecae ek PON Blan ae Se ee Oe ad Seni Seuccs re LZ | ae | ao BG. [eae ee EE ded W100) TON So10N7 Se ee Bee oe (ee ee ee | 20 CAG ae io ea lene ee a im pe ee es POLIO CU IYI] aro (ele Aes | e09 Ts (Wed ele ecine eo ge ae uliey Jed U0zJod JO say ------ z'0 Tye SN e'0 Z@Q |c7777 7777777 «Wary Jed soynur yom fo Jequiny --=--- | OT Gos oe ee al QT |cc7777 77777 «wares sed sesioy YOM Jo JoqunNy =----- oT er oes ees ge | 2OL (0777777777777 Waey Jed smoo Aarrep Jo requnNn 101 8z1 GS1 18 ZG ell Spo aie eS Ayoutypovut puvx szuowmoldut jo onp~eA 86¢ 019 OLOL le%¢ 189 OLE Aiea Seas faa eee wavy ded ssurpling Jo enjeA ozlg lopie lotip jlotrt jeeee (98! |Izl2 | wavy dod pul wavy Jo on[vA Sire ise Ge! ieee eh Gare Opes (¢) e108 sod Puvy wavy fo anjeA Tice Gio eeea lc os | etre leetenlesstcnacne= wivy tod sotow poaoadut ssvioay a8 z'9 z) ce, | 8 PeOTs srcU elec oe ae wivy Jed satov jo loquinu asviay Zs Z9 a) CET Gs pol | (eo) el SMI: OES RE Sa spuUBUOZ JUVD I9q LZ ZF 921 | 0% ge 90 C:0a oo Cans Se SlocvuvUt yUueD dq Was leGOe, wlarhes eGips. \ecel Smelly Gc ee cic: oo: | menmae iene SIOUMO Jxvd PUB S1OUMO JUAd Jog vs ore ae al te i er 20. NaCI SEs a aa ae UL0g-USIa10} JUD Jog ROG. TS FO OR e eOL EO: Wwe ee sac d US| ail Wek cee anes cae a LELOTeO Bueo eed pe lpm) f | eel be | BE Eg ie) see heed ese. | eee es ao ae B > S} = le SNOIDEY Bis he 88 | 25 EE D 7) ‘ae) a | ‘ar ‘OT-G06T ‘suoIsoyy kq eprxop jeaquay ut sro ULIe aq AA JO SOrzSIzRIS ‘po WiavL GEOGRAPHY OF CENTRAL FLORIDA S'Or JF) Wee | Re iat Monee MCS See 9 OL 9'OT BOs, Dos ae oe aiov Jed speysng COPE] co | heRE) ie | Sc Rese Qe eal Ore le wee | 68 COR tua ean oS So eee wey tad U10d JO Sa1oV SoU Oso ee eee ner leo eae |sS245= DIO. AIR L000 aseae lea sae a See ee ee ate aod sayeg 0€'8 C0 js olsen) Nise leet Ole ese 90 61 One eert eere os wey tad 03400 jo samy reg LQ. ------ [------ r0 “ile Wess Bi voabelle Seo ellie bssaee es Wary tod seynm yIoM Jo LoquinNn O90 kL Ole ol eee eee 6'0 ie donee Ott (See lei ees ee wivy ied sesioy YOM JO coquinN 80'T Cisieeael | cas eee 9°0 Sit), onlaaeaes (ict FT Rite ene wavy Jod smoo Ariep jo sequiny coor lo26F leo LG er) vl I¢ l6r g Fel) aac ee Ayourgovut Pue szuoutatdur jo onpep LLI = |09 G59: |60¢ =a |0TE 2 |GGPa. IO La OU ce SO eset ocu eae ane merece wavy tod sBurppmq jo onper 1g9 =‘ |ST6 OORE= GIT -\0ZBL \0GSE Oper 992. InOGs “lol \noneaen enon atn.e wiv} Jod purl wary Jo onpea orat loo'1z |lootex loses Icoroe lose levst leeot [98 leat | CTS gE ETN 8'2e | 861 8'8 PLS Ager SOL] bieeolceicae LS Ree C ule 3 seat a aes. wavy Jed sadov poaoidwt osviaay Geo. | Ger | Pee eGes Tce <| CGE. Weg ee euerpa 0) Deel hlines eames wiv Jod saiov JO Joqunu esvi0Ay L6P TS || set O° | FOI Lor | 2% OF Sz On Giclees has ee ee ee SJUvUd} Jue. 19g L0 Graal SCine|- Ore al-o Geer cg ZT Ge ik G0 clog Rok eee eee ee os SlasvuvuUl yued Idg CGR) Sze Ul-giees 1001. Peseta. pon, Ibe) ulOrre = Ol) cleam an aem S19UMO Javd pUv SLOUMO U0 Jog eee Ob ale eke Oss agg. lee Oran re ROR lwo Sri iGwilsceo a wor ee eee [%}0} JO Yue. sag Z | Sa Je 4 Se | ae oe hace po c= Ste a 5/98 | 28 | ge] ¢ Rol eo | ee] eee Poe eal on ® gaa | 48 = ates NOY eee Se Ws ee hem ole ; | i = Se Re * : ‘OT-606T ‘SuoISay Aq “eplo[T [e1ZUaDH UT SLoMIeT PoeLO[OD JO SoTqsTzPRIg -C& atlavL 272 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT The tables for .white and negro farmers separately present many interesting features which it would take too long to discuss, but most of them can be picked out readily enough with the aid of the bold-face and italic figures. Generally speaking, the negroes are most efficient where they are least numerous, and those on the east coast seem to have nearly as high standards as the whites in some other regions (as already indicated by the illiteracy figures). The census tells little about the foreign white farmers except their numbers, but by doing a little adding, subtracting and di- viding we can ascertain that of those in central Florida in I9Q10, 90.2% owned their farms, 7.3% were managers, and 2.5% tenants: while the corresponding figures for native white farmers were 84.1, 6.5, and 9.4. This agrees very well with the showing with respect to illiteracy of the rural white and foreign population brought out in an earlier chapter. The nationality of foreign farmers is not given by counties, but a little more than half of the.foreign white farmers in Florida in 1gto were in cen- tral Florida, and the leading nationalities among them in the whole State were English, German, Canadian, Swedish, Irish, Scotch, and Danish. The State census of 1915 dealt with population and manufac- turing only, but for some years past the State agricultural de- partment has been taking a census of crops, etc., every two years, going into much more detail than the federal censuses; and two of these State censuses have been used in the foregoing pages in determining the relative importance of different crops in each re- gion, The nuntber of acres in cultivation in each county has been given in the last few biennial crop censuses, and the report for 1917-18 gave the number and acreage of farms, but nothing about the color and tenure of farmers, the value of farm property, or the expenses of farming. On account of the limited funds avail- able for these crop censuses the work has to be done rather hastily, and the results are further vitiated by typographical errors, so that it is not safe to use them for statistical work involving ratios and percentages. > ~ GEOGRAPHY OF CENTRAL FLORIDA 273 CONDITIONS IN I9QI9Q-20 At this writing only a few preliminary returns from the fed- eral census of Jan. I, 1920, are available, not enough to warrant the construction of a table for the different regions; but the fol- lowing results will indicate in a general way the developments of a decade in central Florida as a whole. The percentage of farm land has increased to 17.9 and of improved land to 5.4, or 1.61 acres per inhabitant. The percentage of white farmers has in- creased a little, to 85.4, while owners and managers together con- stitute 89.3% of all farmers, a trifle less than in 1910. The farms are a little larger now, averaging 106.8 acres with 32.2 improved, but this may be due entirely to the larger proportion of white farmers. The apparent value of land and buildings per farm has more than doubled, being $8,400, but as the dollar of 1920 was probably worth less than half that of 1910, this does not necessarily indi- cate any increase in rural standards of living, The number of cer- tain animals per farm is as follows: Horses 0.94, mules 0.46, cattle.13.9, sheep 0.78, hogs 12.6. This is a decrease in everything except mules, and probably indicates a further approach to the conditions prevailing in the east coast strip, where very intensive farming is done with a minimum of live-stock. Some of the horses may have been replaced by mechanical tractors, but that change is likely to be much more marked in the next ten years than in the last ten, if the supply of oil holds out. Statistics of farm expenditures and the value of crops and animal products have not yet been received, but it is altogether likely that they will show a notable increase in intensity of farming. The amount of improved land at present is only about half enough to feed the population, and however much this may be de- plored by our patriotic citizens, this part of the country will doubt- less continue indefinitely to be a large importer of food; for in or- der to become self-supporting the farm population would have to increase faster than the city population, something that has never happened to any notable extent in the whole history of the United States, the tendency being constantly in the other direction. 274 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT VARIATIONS IN SIZE OF FARMS All the foregoing agricultural statistics are based on average farms, and tell nothing about how many are below and above the average or how far some may depart from the average. News items about wonderful yields of one crop or another abound in local papers, and the census averages seems so small in comparison with some of these reports as to tend to give the impression that they may be inaccurate or unfair; but it must be borne in mind that it is only exceptional happenings that have much news value, and the doings of the multitudes of farmers (or any other class of peo- ple) who rank near or below the average are not likely to be men- tioned often. The U. S. census gives for every state and county, and in many cases for white and colored farmers separately, the number of farms in several different size groups, from which curves can be constructed showing the range of variation in that particular in any county or group of counties. For 1860 and 1870 the group- ing was based on improved acreage, but since then on total acre- age, which in most parts of Florida and other “piney woods’ sec- tions is much less significant than improved acreage, for the greater part of the farm area in this State consists of wild land which does not differ perceptibly from neighboring land that has never been appropriated by farniers. For this reason, and also because the census does not give sta- tistics of this kind for the two races separately for counties that have less than 100 negro farmers, no size-of-farm curves are pre- sented here,* but some have been drawn for office use, and some of their interesting features may be mentioned briefly. At all times and in all countries, as far as known, there are more farms below than above the average size, just as most people are below the average in age, education, wealth etc., as explained at the beginning of the chapter on illiteracy. In Ig1o both in central Florida and the whole State just about 23.5% of the white farmers had farms above the average in size, while among the *For a series Of such curves for southern Alabama, perhaps the only ones of the kind ever published, see Geol. Surv. Ala., Special Report No. I1, p. 131, August, 1920. GEOGRAPHY OF CENTRAL FLORIDA 275 negroes there was greater uniformity, about one-third being above the average and two-thirds below.* In central Florida about 8% of the negro farmers had larger farms than the average white man, while the corresponding figure for the whole State was about 7%, and for Marion County only about 2%. The greatest in- equality in our area is in Osceola County, where only 9% of all farms (for both races, but there are so few negroes that the re- sults would be much the same for whites alone) are above the average in size. But the largest farms are cattle ranches, with very little improved land, and if improved land alone was consid- ered Osceola might not show up very different from some of the other counties. If we only had similar graded figures for acreage of improved land, value of land and buildings per farm, yield of different crops, c., the results would be very significant. But in the absence of such data we can safely assume that the resulting curves would all be steepest in their higher portions, as we already know to be the case with those for ages of the population, grades of school chil- dren (fig. 43), cities arranged in order of size, mountains in or- der of height, rivers in order of length, etc. CROPS Relative Importance In the regional descriptions the relative importance of the prin- cipal crops for 1909, 1913-14 and 1917-18 has been indicated, without specifying how much’ of the total crop value is contributed by each, except sometimes in the case of one or two near the head of the list. Table 36 shows for each of the more important crops what percent it made in 1909 of the total crop value in each region for which we have statistics, as nearly as can be ascertained from the 13th U. S. census. The value of each crop in each county is not given by the federal census as it is;by the State census, but it has been estimated by assuming that the value per bushel, pound, *Fyom these curves it can be determined that the median sizes of farms in the seven central Florida counties that had over 100 negro farmers in 1910 were about 43 acres for whites and 30 for negroes; that is to say, there were just as many farms above as below these sizes. But the average sizes for the two races, as shown in Tables 34 and 35, were 102.5 and 43.5 respectively. 276 FLORIDA GEOLOGICAL SURVEY—I3TH ANNUAL REPORT or other unit is the same in each county as it is in the whole State. The federal census is also unsatisfactory in that it lumps together the two varieties of cotton and many kinds of vegetables, which are important in Florida, but that at least simplifies the table. The reasons for not using the State census figures for crop value per- centages have been given elsewhere. The percentages in this table are given to the nearest tenth, so that those below .05% are represented by zero, which does not nec- essarily mean that the crop in question is not raised in that region at all. Crops that do not constitute as much as 1% in any of the regions treated are omitted. The highest figure in each line is printed in heavy type, as usual, but the lowest is in many cases in- determinate. Some of the columns add up more than 100% and some considerably less, doubtless because of great variations in the value per acre of different vegetables, which are not separated by the census. TABLE 30. Relative Importance of Different Crops in Central Florida, by Regions, 1909. \ uf | | g i 2| § 9| Lely 3.31 wlo,| 8/880 be Fle zleslisels2 Se ees a Sele eM el ealgsias CROPS CE Ag AS/BS) A ws|ds|e soR|sa SVerctables:) S2--—=-2—-- = | 72.0] 29.5| 66.8] 19.3] 37.6] 20.7| 8.1] 4.7|| 30.4) 17.5 Cotton (both kinds) ------ 0.1] 5.4] 0.77 0 0| 0 Q |, 20 0.5| 13.4 Cotton seed .—-=-=-=-_____= ee | eed es el 0 | 0 0 Oo Nae Coney seems eee wks | 13.2) 18.4] 13.4] 16.9] 3.4] 5.5] 7.8) 0.2]| 7.4| 15.8 Ontar eee ste ue ee Se 1.3] 4.1| 3.3] 0.6) 0 0 0 0 1.0| 1.2 Reanutse 2. ==-—- = ee 2:3) sx9.2) 5 6:2|72.2)) 401) | O.L) Oss 0 2.7| 5.9 Trish potatoes ------------ o-2| 0.8] 0.4] 0.7| 1.8] 3.1] 1.7| 0-4]| 1.3) 2.3 Sweet potatoes —~---------- | 13] 3.8] 2.5] 5.8| 1.9] 26) 6.6] 0.7|| 27| 34 Oa CCOmp ee ee 0 Oy) SOME g-4le 0 0 0 0 0.2| 2.8 Hay and forage —---=--—-= 1.5] (1.8/5.1) 0.5] 3.7| 3.4] 5.6) O.1|| 34) 723 Sugar cane (syrup) ------- 1:0). 5.2), *22b/ 74.6] 03) 2-7) 1.5) 0:2 || aia Straw Pernes pea=— == sae OP eh0 ls 0 a4) Ol 2,7) 5, Ons \eg0 1.1| 0.8 Oranges: 2220 Sse See ees 8.2| 3.7| 8.6| 16.7| 51.8] 43.2| 54.3| 51.9)! 32.5] 11.9 Grapeiruit tose ee 3.3] 0.3| 2.8] 3.0] 9.9] 18.7] 10.6] 12.5|| 9.8] 5:3 Average Yields The average yield per acre of the leading crops in 1909, which is readily ascertained from the census reports, except for vegeta- bles and orchard fruits, is given by regions in the next table, ex- cept that in a region where a given crop is relatively insignificant GEOGRAPHY OF CENTRAL FLORIDA 277 its yield has not been computed because the chances of error are too great. For example, if only one or two farmers in a region raise a certain crop their yield in the census year might easily be below or far above the normal, in accordance with the principle . set forth a few pages back, so that averages based on them might be very misleading. “Vegetables” are left out of this table, because so many dif- ferent kinds, measured in different units, are lumped together in the government census reports. Both federal and State censuses give the number instead of acreage of fruit trees, apparently be- cause some farms have only a few scattered trees whose acreage cannot be measured; but the average number of orange and grape- fruit trees per acre is commonly reckoned at 70, and the acreage has been computed on that basis. TABLE 37. Average Yield per Acre of Certain Crops in Central Florida, 1909. =—— SSS eet REGIONS | a4|g4 Sie | ) & Ola oS | es a sha oleae eer Ol | eae Sal exisalbe 2 [Pe es ggleelse tt ek ee ecm Sa) 4 Aa wa ms O & SH Coen (bushels) 7252-22. 16.0| 70.6] 12.0| 13.3] 14.6] 13.7) 12.4] 15.7|| 11.5] 11.6 Oats (bushels), 2222—-2-=-—- 12.2] 13.9] 12.8] 12.1] 13.9] 17.7] ----| 10.0|| 13.1} 14.0 Rice. (bushels)> =2-22222 22-222 [eel lien|! io ee 2aeb) | eee || 227 | 198 Peanuts (bushels --------- 14.2| 22,.1| 16.3] 19.2] 15.7) 11.9] ----| ---_|| 18.5] 18.4 Hays (tons) == ====——=—=-—== TO) EG eros ea) ete 2) TL) Lotte V2p LO Irish potatoes (bushels) --_| 51.0] 72.3) 52.4) 57.4| 92.3| 87.0| 90.8| 95.4|| 84.6|100.8 Sweet potatoes (bushels) -_| 85.7| 82.3] 70.8|101.5|100.1| 85.8/105.0/120.0|| 90.4) 94.7 Sugar cane (tons) -----~- | go| 7.7| 4.4| 13.5] 7.4) 13.9] 21.2] 13.4|) 9.4) 11.1 Sugar cane (gals. syrup) --| 164] 221) 199} r45| 171| 155] 179| 294] 178) 196 Oranees a (boxes), -4-2=—) -- | 8z| 138] 115] 103] 119] 176) 153) 115); 122| 123 Grapefruit (boxes) ----~-~-- 152] ---_| 129] 146] 103] 144) 121] 8|| 129| 112 Strawberries (quarts) .-.=-] ~-=-| +-—-| ~=_-| 2130] 680|,1737| ~---| ---=|| 1611] 1777 The yield of any crop of course fluctuates from year to year with the weather, etc., but should not change much from one decade to another, except for a slight increase as the population becomes denser, land more valuable, and farming more intensive. Natural fertility of soil seems to have little to do with crop yields, probably because differences in that respect are so easily elim- inated by the use of a few dollars’ worth of labor or fertilizer, or both. The Middle Florida hammock belt is unquestionably the 278 FLORIDA GEOLOGICAL SURVEY—-I3TH ANNUAL REPORT most fertile in the area under consideration, but it does not have the highest yield of any crop shown in the table; and the averages for central Florida are close to the State averages, although the soil is doubtless below the State average in fertility.* Density of population has more effect, for the western flatwoods and the east coast strip each lead in three crops. ANIMAL PRODUCTS In several of the foregoing tables the number of animals per farm in different regions at different times has been given, but little has been said about the amount of meat, milk, wool, eggs, honey, etc., produced by them. Such information was gathered more completely by the census of 1910 than by any preceding one, and the results as far as they apply to central Florida are shown in Table 38, which as usual has a column for each region, one for the whole area, and one for the whole State. The census does not give the total production and value of every animal product, but sometimes only the total or only: the surplus sold; and the different kinds are lunrped together more or tess in the returns of values. The results are computed on a per tarm rather than a per acre basis, for animals bear no close rela- tion to either total farm land or improved land. The amount of milk, butter, poultry and eggs sold is roughly proportional to the urban population, and is therefore highest in the western division of the flatwoods, represented by Hillsborough County. Hogs (and therefore animals slaughtered, which are mostly hogs), are most important in the lime-sink region, which raises the most corn and peanuts. Animals sold on the hoof, which are mostly beef cattle, of course lead in the eastern flat- woods. Although that region has the most sheep per farm, they must be raised mostly for mutton, for the Middle Florida ham- mock belt exceeds it in wool per farm. The east coast leads in honey, but is lowest in most other animal products, on account of the intensive farming which prevails there. *The value of crops per acre is a different matter, though. In this re- spect central Florida is over 60 per cent above the State average, as shown in Table 33, not by producing larger yields, but by raising a larger proportion of more valuable crops and less cotton, corn, oats, peanuts, etc. 279 GEOGRAPHY OF CENTRAL FLORIDA PPI OG ES OO'LE Lal la CL st OO'TF cC1l Cr él | | lo | nie ot ie oe = OTL 9 FT SP o9 T¥é S'1% PEST Tot=. ||90 Jove [beta iter. bet Selb lT = spec GS Alcs ce crceg nes oer (090 ‘s1oyywoy | | sopty ‘yrut ovutoy ydooxe) syonpoad [vutue [TV ose |loo’2t |gest [o7Or |cezt jog'ep jog'sg jooror [OTST [> patoyysneys spwurUy loose ||@2-4 oorvEr loge los0e [OSTS [09 1F [00:09 [00°06 | yooy oy} Uo POS s[vUIUy OO'T O 00'T STO 80°0 09°0 zg'l 690 CSOs 2s > eres peonpoid areyour Puv [ooA, 6eT ||24°P Teal 66'0 ST 620 oG'0 ANN | Sein Oa lean oe ae oe poonpoid xvasooq pue Aouoy{ losz2 llozst lozzt lo&eS loge lest lores loses \9822 |-- > - pjos ssse pus Aaypnog ossp |l09-2E |loo'sg |oo'64 lorer loeze |st1¢ jog'0g 00°68 |---—-———————--—— poonpoad ssso0 pue Arq[nog OLT2 et > airy GT 6% zo Osa cleGtOw 2) Gieeulpac ree eee eee ae potaqzySne[s 10 plos ssoy 9% [o'r “lmeks SI 13 SZ Tizeteove OO: Git Ekim pe me Lago PolozysNVIS 10 P[OS 9[99BD ep Ios ote ive oe aoe eis Acre S| 6 0n serie tere meee cence nomen ULOYS Sod00]} “[OOA\ | OLT wee | 6 | 98 pol |0'e PP FP QTE See eee acme (spunod) peanpoad Aouoyy BOL || “her vi Opp. POCO) cy IeieG, = POG: | RGD =| E1CC Sian ate ete oes enerene nes (uazop) P[OS soso OFET.|| Selo eT OOee. 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