/")/• UC-NRLF // 3 \ IL h* ^^, „. R T A|i -I -in-1 ^ i * t i 1 Geological Survey §33333333 33333 BULLETIN NUMBER SIX 33333 * \b I 1914 I * * i * * *n $ Repo^ on * * \b * m #< The BiOi, ; TJ^rding County * * * * * i North we^tw ^^kota S vi< s 1 viSi- £ fj Xif $ & *P xfc ^f* 4 /f\ Vll M vk $ Report of State Geologist for '3-19i^± * $ 1 ft /^\ vfe J \v ELLWOOD CHAPPELL PERISHO State Geologist iRTH FENCES tRARY GIFT or SOUTH DAKOTA GEOLOGICAL SURVEY BULLETIN NUMBER SIX 1914 A Preliminary Report on the Biology of Harding County Northwestern South Dakota By STEPHEN S. VISHER Report of State Geologist STA TE, PUBLISHING CO, ; D. LLWOOD CHAPPELL PERISHO, State Geologist 1914 EARTH SCIENCES REGENTS OF EDUCATION A. E. Hitchcock, President Mitchell T. W. Dwight, Vice President Sioux Falls A. M. Anderson Sturgis Marcus P. Beebe Ipswich August Frieberg Beresford Fred W. Ford, Secretary Elk Point 333133 LETTER OF TRANSMITTAL State Geological Survey, University of South Dakota. Vermillion, S. D., March 3, 1914. Honorable A. E. Hitchcock, President of the Board of Regents of Education. Dear Sir: I herewith submit the accompanying articles for publication as Bulletin No. 6 of the State Survey. It contains a Preliminary Report on the Biology of Harding County, and the Biennial Re- port of the State Geologist. Very respectfully, EU opp. p. 89 THE BIOLOGY OF HARDING COUNTY, NORTHWEST- ERN SOUTH DAKOTA. BY S. S. YISHER. INTRODUCTION Harding County is located in the northern Great Plains. Be- cause of the variety in topography and soil, many ecological as- sociations are represented. It is believed that a study of the biology of this county will make easier an understanding of the biological conditions of a wide area, and therefore that the following report will have more than local interest. Harding county is the most northwestern county in South Dakota. It is bordered on the north by Bowman county, North Dakota, on the west by Custer county, Montana, on the south by Butte county. South Dakota, and on the east by Perkins county. It is approximately 50 miles square and so extends southward nearly to the YVyoming-Montana-South Dakota corner. Most of the area is a treeless, semi-arid, rolling plain having an average elevation of about 3,400 feet. Upon this uneven plain rise several large more or less forested buttes (Cave Hills in the north central, Slim Buttes in the east and Short Pine Hills in the southwest), and numerous smaller buttes. Below the general level have been eroded many valleys which are most conspicuous because deepest, towards the borders of the county. Badland areas are scattered widely. The finest examples are at various points in or bordering the buttes, especially at Reva gap in the Slim Buttes and about the northeastern end of the East Short Pine Hills. The "jump off" which extends for several miles eastward from the East Short Pines is notable. The drainage is thorough — there are no lakes and no stand- ing water except behind small artificial dams and in the shallow water holes (most of which were formed by the blowing away of the soil from small areas) which contain water for short intervals after rains. 12* - »« .* . THE BiOLOG^ OF HARDING COUNTY The streams are all highly irregular in their flow, except a few spring fed brooks in forested buttes. The chief rivers are (i) the Little Missouri which crosses the northwestern corner in a deep valley along which badland areas and sandy stretches occur. This river system at present drains but a very small per cent, of the county. (2) Most of the area is drained by the south fork of the Grand river and its tributaries. (3) The southern border of the area is drained by the north fork of the Moreau river. Numerous classes of soils are represented in this area. There are large, highly sandy belts, smaller, clay ("gumbo") areas and all gradition between these. Most of the area is overlaid with loams. The climate is severe. The average rainfall is but little over 15 inches, but is very irregular in its distribution. Normally about four-fifths is received in the growing season. The interval be- tween killing frosts in spring and fall averages about 120 days, but the frostless season — between the latest recorded spring and the earliest recorded fall killing frost is less than three months. A moderate wind (10 to 12- miles an hour) is normal. It in- creases in velocity during the day, but often dies down at night. The vegetation is mostly that of the dry prairies or steppe — short grasses and herbs. Groves of trees, chiefly cottonwoods, are found in the Little Missouri valley. In and about the larger buttes are areas which are more or less forested with pine, ash, and cedar. The larger buttes have been incorporated into the Sioux National Forest. For a detailed discussion of the topography, geology, soil, climate and mineral resources of this area, see a forthcoming bul- letin (Number 8) of the South Dakota Geological Survey. The Biology of the Past. Very early this region of course was without life. At the time represented by the oldest formations known in this definite area life was already abundant. There were woods containing trees (oak, cottonwood, pines, etc.) similar to those of the present. The flowering herbs of that time are unknown. Quite likely these were not yet extensively developed. There were various reptiles, some resembling gigantic "horned toads" with similar armor-plating. Others resembled monstrous lizards, while many were very different from anything now living. For example LIFE IX THE PAST 13 the flying "dragons'' and kangaroo-like dinosaurs. The birds of this time are but poorly known ; some had teeth ; others were very similar to those of the present; still others were flightless and very expert divers suggesting in some respects the penguins and the recently extinct great auks. Very little is known of the insect life of this the Cretaceous Period. There were beetles, grass- hoppers, dragonflies, etc. Butterflies, bees and flies first became abundant at the close of the Cretaceous or somewhat later. During the Tertiary the life was in some respects quite dif- ferent than during the Cretaceous. While Mammals had been either totally absent here during the Cretaceous or exceedingly rare, they were predominant in the Tertiary. There were few rep- tiles, except for land tortoises and an occasional crocodile. Among the mammals were some forms which were ancestral to modern mammals and others such as the Titanotheres have left no descendants. Remains of birds have beln found but rarely here. However, a fossil bird's egg was found by Wm. H. Over in the badlands at Reva Gap in the Slim Buttes. In some of the asphalt pools of California numerous large Tertiary birds have been pre- served. Many are very modern. The relative absence of fossils of the smaller kincfc of birds suggests that small birds have since then increased in numbers more than the large ones. Civilization at least has been less severe on the small birds than on the large ones. I know of no fossil insect having been discovered in the Tertiary of South Dakota, but at a few other localities, notably Florissant, Colorado, hundreds of species, representing almost all the modern orders and even many modern families and genera have been discovered. The Tertiary flora of this region is shown chiefly by leaf prints in the shale was likely not greatly different from the modern flora though tree ferns, sequoras or giant redwood, tulip tree, magnolia, etc., supplemented our flora. However, it is quite probable that some families such as the grasses, legumes (peas, etc.), composites (aster, sage, etc.) were less predominant than at present. It also seems probable that there was a smaller number of species of the higher flowering plants then than now. 2. At the coming of \Yhite Man into this region. The fauna and flora was different from that of today, mainly in regard to the larger forms. In 1850 there were wild horses 14 THE BIOLOGY OF HARDING COUNTY (descended from those brought to Mexico and liberated by the Spaniards in the i6th century. For some unknown reason the native American horses became extinct on this continent shortly before the glacial period). There were present large herds of. bison, elk, antelope and many bighorn sheep, bear and puma, and more large birds such as the cranes, grouse, ducks, etc., than there are now. Various small mammals such as some kinds of mice, etc., were doubtless more rare than now, as is also the case with numerous kinds of birds, "weeds" and household insects. 3. Explanatory Remarks. In the treatment of the biology of a diversified area it is desirable to sub-divide the region into sections having many simi- larities. In this area there are native perhaps 50 kinds of mam- mals, 200 kinds of birds, 15 kinds of snakes, lizards and turtles, 6 kinds of amphibians, over a thousand species of insects and con- siderably over 500 kinds of plants. In addition there are the fishes, mollusks, crawfish, worms and many smaller forms. Of this vast array of life very many are inconspicuous and not ob- served by non-specialists, although without a doubt every species has its part to play in the biologic economy of the whole. This is made the more likely when it is noted that most of the species have a definite place to occupy. The plants and animals of the ponds are not at all of the same species as those of the hill tops, those of the shaded ravines not at all the same as those of the level prairies. It is therefore convenient to sub-divide this area into several biological associations or ecological formations. The largest as- sociation is that of the "Grass-covered Uplard," "Steppe," or "Dry Prairie." Other important formations are (b) the "grassy Flats" along the stream valleys, (c) Woods in the ravines and along the streams, (d) Hne-covered and. Rocky Slopes, (e) Badlands, (f) Sandy areas, (g) Streams, Ponds and Marshes. It is noticeable that these several formations are primarily characterized by their topography, secondarily by their vegetation and lastly by the animals which inhabit them. This is in reverse order of the motility and is to be expected. The topography is practically unchangeable except when considered in a geological sense. The individual plants are stationary, but the species is movable by means of the seeds, runners, etc. In the case of the THE CONDITIONS OF THE STEPPE 15 animals, both the species and the individual are able to move about, consequently, we would expect the animals to be but par- tially confined to a given association. The coyote for example may be found in each and every formation mentioned, but we all know that in some, for example, the stream, pond or marsh, its presence only indicates a visit. In the case of animals, the as- sociations in which they breed are considered to be the associations to which they truly belong. II. THE ECOLOGICAL FORMATIONS, i. The Grass Covered Upland or Steppe. (a) The Climatic Conditions of the steppe are severe. It has consequently been classed as a Xerophytic ecological formation. Precipitation. The rainfall comes sporadically. Sometimes it falls with great violence and is occasionally accompanied by hail. Frequently only slight showers occur. Periods of drought of shorter (a few weeks) or longer (a couple of seasons) dura- tion are expected. Ordinarily, about three-fourths or more of the total rainfall takes place in the five growing months. The dryness of the rest of the year is evident. The relative humidity of the steppe is low. Temperature. The range of temperature is very great, almost 150 degrees Fahr. annually, and frequently 40 degrees daily. The summer months, especially July and August are hot and the winters cold. The seasons are irregular. Freezes occasionally occur as early as mid-September and as late as May, and frosts as early as early-September and as late as June. During the winter season, especially in January and March, unseasonably warm weather occasionally starts vegetation only to have it damaged by the succeeding cold snap. \Yind. Steppes are windy. The velocity is seldom high, but an 8-12 mile breeze is almost constantly blowing especially during the day time. In the summer such winds may be exceedingly hot and may blast the vegetation severely. In the winter the winds are often very cold. When driving dry snow, they are indeed cutting. Light. There is very little protection from the direct rays of the sun for the plants nor for the animals, except those that 16 THE BIOLOGY OF HARDING COUNTY burrow. Cloudiness is unusual. Consequently in regard to light, the steppe approaches the desert. (b) Some of the more conspicuous plants and animals of the steppe. The predominant plants are the grasses. Perhaps chief are the grama grass (Bouteloua*), buffalo grass (Buchloe), wheat grass (Agropyron), wire grass (Aristida). Tickle grass (Agrostis) and blue stem (Andropogon), are abundant in the slight draws. The Composites are certainly entitled to second place. In fact except in the spring they surpass the grasses. The most noteworthy genera are: Blazing Star (Liatris), Goldenrod (Solidago), Coneflower (Ratbida), Golden Aster (Chrysopsis), White Aster (Aster), Resin or gum-weed (Grindelia), Nigger- head (Brauneria), Wormwood and Sage (Artemisia), Sun- flowers (Helianthus), Yarrow (Achillea), Prairie Pink (Lycodes- mia), Sideranthus, Erigeron, Actinella. The Legume family ranks third. It includes some of the most aboundant plants of these plains: Leadplant (Amorpha), Prairie Clover (Petalostemon), Dakota Vetch (Lotus), Buffalo bean, Loco, etc. (Astragalus), Lupine (Lupinus), Psoralea; and in the draws the true vetch or wild sweet pea (Vicia), (and the Oxalis). Monocots, other than the grasses, are the Wild Onion (Allium), Prairie Lily (Calochortus and Leucocrinum.) There are several crucifers ; Shepherd's Purse (Capsella), Wall Flower (Erysimum), Lesquerella, Sophia, Arabis. Various sorts of evening primroses are conspicuous because of showy flowers. Genera represented are Anogra, Onagra, Gaura and Meridolix. Members of the Chenopodaceous plants (Chenopodium, Eriogonum, etc.) are plentiful in the more clayey or more sandy portions. Two scrophs (Orthocarpus and Pent- stemon) adorn the plains. Among the many other abundant genera may be mentioned: The roses (Rosa), Wild Flax (Linum), Milk wort (Polygala), Malvastrum, Cogswellia, Puc- coon (Lithospermum), Oreocarya, Plantain (Plantago.) The steppe grades, in areas of the sandy loam, into the sand- hill formation. The wire-grass association is an intermediate phase between the typical short grass ( Grama and buffalo) and the beyond. *For specific names consult "The list of plants collected in this area' )nd. ADAPTATIONS OF THE LIFE OF THE STEPPE 17 bunch grass type of vegetation which occupies the rougher areas. Steppe areas covered by the Pierre clay frequently have developed on them the wheat grass association. Among the mammals conspicuous on the plains are the north- ern coyote*, the gray or buffalo wolf, the kit-fox or swift, large weasel or ermine, striped ground-squirrel or gopher, Jack rabbit or prairie hare, pocket gopher. The prairie dog, badger, the large skunk and the spotted or little skunk are found. The grass- hopper mouse, the large meadow mouse, the little vole or meadow mouse all occur. A few antelope still remain especially west of Slim Buttes and in a large pasture a couple of miles north of Camp Crook. The plains birds are especially the following: Western Meadow-lark*, Desert Horned Lark, Lark Bunting, Chestnut- collared Longspur, Western Vesper Sparrow, Brewer's Black- bird, Marsh and Swainson Hawks, Burrowing Owl, Sennett Xight- hawk. Upland Plover, and about the blowouts, the Killdeer. The rattle snake (Crotalus*) and the bull snake (Pituophis) are the reptiles commonly found in this association, and they are far from plentiful. Land snails (Succina*) are rare and earth worms are lacking here. Grasshoppers of several genera and many species*, dung beetles, ants, and robber and bot flies, wasps, and running spiders are a few of the groups of insects which are conspicuous. fc) Remarks on the "Adaptations'' of the life of the Steppe. The adaptations shown by the plant-, are numerous. The following seem to be the most prominent: ('i) The predominance of perennial herbs of the higher plains. Though in favorable years annuals are conspicuous, the char- acteristic vegetation year in and year out is distinctly herbaceous — no larger shrubs and of course no trees. This is contrast to woodland, desert, prairie and most marshes. (2) Compactness of growth of stalk or of flowers or of both. This compactness of stalk is illustrated by almost all the plants. Xo abundant upland species reaches a height, in ordinary *For scientific names of mammals see "the list of mammals found in this area" beyond. For full scientific names see "the list of the birds," "the list of reptiles," "the list of mollusca" and "the list of insects." Sig.— 2. 18 THE BIOLOGY OF HARDING COUNTY seasons, of much over a foot and practically none reach two feet. The vast majority have most of their bulk within six inches from the surface. The conspicuous place held in the flora by the Com- positae points to compactness of flowering parts. Even the grasses, (Grama, buffalo, wheat, etc.) have the spikelets relatively compactly arranged instead of loose as is the case of many prairie and v/ood land grasses. (3) Root system specialization: Since there are, in time of drought, frequently only slight showers which do not soak in, there are many plants, notably the short grasses which have a shallow, wide-spreading root system developed. The buffalo and grama grasses have their roots nearly confined to within a foot from the surface. In contrast to these there are such deep-rooted plants as Psoralea which has almost all of its roots at a depth greater than four feet, and in some cases penetrates hard sub-soil as deep as six feet. 'Certain species notably Artemisia and Gutierrizia have both well developed lateral roots and rather deep tap-roots. The plants showing storage are chiefly the bush morning glory, the blazing star (Lacinaria) and the Indian turnip (Psoralea). The cacti are the only ones that store considerable amounts of water above ground. (4) Prevalence of narrow, small or resin-covered leaves : Almost all the plants have either small or narrow leaves. The prairie pink (Lygodesmia) and Gutierrizia are almost leafless. Abundant species with resin are the cone flowers, gum-weed, Psoralea, etc. (5) Wind dispersal including the tumble weed habit: The "tumble weed habit" is developed chiefly by plants of the wind-swept plains. Several species belong to the different groups such as the Russian thistle (Salsola pestifer) a Chenopod; Psoralea, a legume; the tumble-weed (Amaranthus) a member of the Amaranthaceae, have this habit. (6) A short growing period not closely confined as to season: The climate of plains is irregular. In some years the vege- tation is several weeks ahead of normal and the next year it may be as far behind. Delays in the coming of the rains occasionally cause surprising late flowering. We found flowers of the Pasque flower and of the prairie rose in August, following July rains. THE ADAPTATIONS OF THE PLANTS OF THE STEPPE 19 (7) Destruction of exposed parts does not result in death of the individual : In the case of many trees, shrubs and other plants belonging to other ecological association, the individual is killed by the destruction of the aerial parts. In the case of many steppe plants such destruction is frequent by grazing animals and perhaps in all bui: the season of greatest growth, by prairie fires. Certain species are killed by too frequent fires (oftener than once in three years for example) or by close pasturing, but the characteristic steppe plants have wonderful resistance in this regard. (8) Ability to withstand inactivity (forced by drought) for an entire season or even two or three years : This ability is very essential. After a series of wet years many new immigrants into the steppe flora are noticed. The re- turn of the dry cycle eliminates these species which are only sojourners on the steppe. The characteristic species seem to be uninjured by even prolonged drought. In the summer of 1911 for example, there were localities which for two years had been so dry that no grass at all had started, yet when the unusual rains of September came, even-thing was green in a few days. (9) Resistance to unseasonable weather: The vegetation does not readily start in the spring. However, if after it has started a freeze comes, there is surprisingly slight destruction of the characteristic plants. Early frosts in the fall also affect the native steppe vegetation scarcely at all. (10) Marked seasonal succession depending on accumulated temperature, water content of the soil, relative humidity, etc. : The succession of flowers, in an ordinary year is striking. During one month the prairie is tinted by one group of flowers, and during the next month by others, and the succeeding month by still others. In this locality the early bloomers of the plains include Cymopterus, Townsendia, Viola, Pulsatilla, Leucocrinum. Among those blooming in June are Pentstemon, Allium, Zygode- nus, Astragalus, Linum. In July, Braunia, Ratbida, Psoralea. Malvastrum, Gaura, Euphorbia, etc., are prominent. During August, the Asters, Solidagoes, Senicios, etc., are in their glory. The Artemisias are in full bloom early in September. It has been determined by others that accompanying this progressive activity there is a shifting in the floristic complexion 20 THE BIOLOGY OF HARDING COUNTY of the region. Early in the season, the plants are mainly related to eastern or mountain plants. While as the season advances the active or dominant species are successively related to prairies, plain and finally the desert. (n) Predominance of plain yellow flowers, with many browns. Although several of the conspicuous flowers are white, sev- eral are orange and a few pale blues, there are few reds, deep blues or violets. Scarcely any are streaked or mottled. In the vast majority of the cases the flowers are small in size as com- pared with those of other plant formations. (12) Fertilization accomplished chiefly by the aid of the wind. The mammals of the plains have all adopted one or more of the following characteristics : 1. Fleet runners : Antelope (32 miles an hour), jackrabbit (28 miles in an hour), coyote (24 miles an hour), kit-fox or swift, and gray wolf (20 miles per hour.)* 2. Burrowers : Pocket-gophers, striped gophers, badgers, prairie dogs, voles. 3. Acute long-range vision. 4. Gray or tawny in coloration. 5. Ability to do without drinking water. Water for physiological activity and for cooling by per- spiration is mainly secured from the food eaten. Mud about the water holes very seldom indicates that these animals have been drinking there. 6. Daily period of activity chiefly in the early morning, also to a lesser degree in the evening, and at night. Voluntary activity of every one of the above mentioned mammals is very limited during the heat of the summer day. Most of them are in the shade then. Activity liberates heat which must be eliminated by perspiration which in turn re- quires precious water. 7. Many hibernate: (The fleet long-distance runners are the exception to this rule). 'Quoted from Seton: Life Histories of Northern Animals. THE ADAPTATIONS OF THE ANIMALS OP THE STEPPE 21 The birds of plains possess one or more of the following characteristics : 1. Nests necessarily built on the ground. 2. Many sing on the wing. (Lark Bunting, Longspur, Horned Lark, frequently the Meadowlark, are examples). 3. Songs and calls comparatively loud. 4. Tendency to flock not nearly as prominent as in birds of the woods or water. The winter flocking is largly accidental. They gather to feed where food is exposed by the blowing of the snow. 5. Ability to withstand strong wind. Seed-eaters feed dur- ing winter in apparent comfort on hills swept by high winds. 6. Females and nestlings are almost all protectively colored. This seems required by the exposures of the nesting sites. Highly migratory. I>ut few individuals remain on unbroken plains during winter and these of different species than in summer, except in the case of the Desert Horned Lark. Even this bird mi- grates somewhat. 8. Ability to withstand the intense heat of the sun. This is required especially by the nestlings which are often on dark ground. The birds of the steppe must of necessity require but little drinking; water. Heavy dews are rare on the plains. The reptiles, of which the rattle snake, bull snake, and the horned lizard are the chief, possess a surprisingly effective pro- tective coloration. Of the insects of the steppe the following points may be made. 1. The period of the day when the greatest activity is evi- denced is in the forenoon from 7-11 o'clock. Mating is chiefly indulged in between n o'clock and one. During the rest of the twenty-four hours the insects are quiescent except when disturbed. 2. Seasonal activity limited to but three or four months of the year. Almost complete inactivity during six months of the year. 3. Many forms burrow or occupy mammalian burrows. 4. Predominance of hoppers. 22 THE BIOLOGY OF HARDING COUNTY 2. GRASSY FLATS OR TERRACES ALONG THE VALLEYS. 1 i ) This biologic association is related to the steppe ; it also sometimes adjoins the wooded bottoms. Its conditions are similar to those of the steppe, but not so severe. There is no more, and perhaps there is less rainfall, but there is more ground water be- cause of two reasons: (a) The run off from the adjacent eleva- tions, (b) The terraces are lower and consequently nearer the water table of the district. (2) Some of the conspicuous plants and animals of the grassy Hats. Almost all of the plants of the steppe occasionally grow here. Since the wash of the rain brings down the seeds of al- most all the steppe plants it is very reasonable that sporadic repre- sentatives should occur. The predominant vegetation, however, is somewhat different. There is a much larger percentage of the wheat grass (Agropyron*) and decidedly more prickly pears. There are many .large patches of the buckbush (Symphoricarpos). The wild rose (Rosa arkansana) is often associated with these patches. Brome grass (Bromus) is frequently prominent and with it the grass-like Collomia. Other plants which are usually in evidence are burr tomato (Solatium), blue-joint (Calamagrostis) wild-rye (Elymus), red-top (Agrostis). In addition there are several species each of Atriplex, Chenopodium, Erigeron, Solidago, Helianthus and Artemisia most notable of which is the true sage brush and the lancelate sage. As far as my observation goes there are decidedly fewer flowers than on the steppe. Locally on the the plains and rarely on the steppe are blowouts or "hardpan" spots which have a peculiar flora. The small or fragile prickly pear (Opnntia fragilis) here replaces the larger Opnntia polycantha of the loam and is sometimes exceed- ingly plentiful The grass is chiefly the alkali grass (Distichlis). Three flowers which we found only on such spots are Talinum, Suaeda, Monolipis. The conspicuous mammals making these flats their breeding places are the prairie dog (Cynpmys*) and in these colonies animals that prey on them, especially the weasel (Putorius) and rattlesnakes. The western cotton-tail rabit (Lepus) is often found *For specific names see the technical lists of species which follow this section of "the biology." THE ECOLOGY OF THE WOODED AREAS 23 on these flats, especially where there is "buck-bush." There also nests the Sharp-tailed Grouse and Western Meadowlark. There are other birds more characteristic of the steppe. Every prairie- dog town has its brood or broods of Burrowing Owls. The smaller rodents, as far as we discovered, were those of the steppe and of the open woods. Perhaps the most striking insect is the large brown and white moth which feeds upon the sage bush. For a few clays each summer these "butterfles" are very abundant and conspicuous. 3. THE WOODED AREAS In Harding County there are scattered groves in the Little Missouri Valley especially near Camp Crook. The canyons in the forest reserves are more or less filled with deciduous trees and there is generally a narrow extension along the streams into the plain or steppe. In each of the forest reserves there has been at one time or other a saw mill. The timber cut was chiefly the pine, however. i a i It seems evident that the conditions for growth of most sorts of plants are much more favorable here than on the plains. The proximity of springs and running streams indicates that the ground water is within the reach of such trees as grow here. These trees partially shade the other vegetation and protect it somev, hat from the wind. In the canyons, the walls of rock have the same tendencies. The relative humidity is raised both because of the cooler temperatures, and because the ground being shaded it does not dry so quickly after a shower. The daily range of temperature is less. (b) Sonic characteristic plants and an'unals: The chief trees are the Cotton wood (Populus), boxelder (Acer). Ash (Fraxinus) and hackberry (Celtis). The Elm (Ulmus) is most abundant and largest about the Cave Hills. The Western Yellow Pine (Pinus) and Aspen (Populus) are locally abundant on the sides of the canyons in the forest reserves, and found to some extent among the deciduous trees in the ravines. Among the larger shrubs are the plum (Prunus), chokecherry (Prunus), buffalo berry (Lepar- gyraea), dogwood (Cornus), Currants and gooseberries (Ribes), buck bush ( Symphorocarpos), Roses (Rosa). In the ravines ad- ditional shrubs are the hawthorne (Crataegus) Service-berry TAmelanchier) and blackhaw (Viburnum). The western poison 24 THE BIOLOGY OF HARDING COUNTY ivy (Rhus) is widely represented. Of the twining plants the chief are smilax (Nemexia) clemantine (Clematis) and in the ravines, hop (Humulus), bittersweet (Celastris) and Virginia Creeper ( Parthenoeissus ) . The most characteristic grasses of the open woods are the wild rye (Elymus) and brome (Bromus) with squirrel-tail (Hordeum) and red-top (Poa) locally conspicuous. Among the herbs chief are the horse mint (Monarda), thistle (Carduus), false- solomon-seal (Smilacina), Disporum, golden-rods (Solidago). In the ravines the following are in evidence : Geum, snake-root (Sanicula), loose-strife (Stieronema), nettle (Urtica), and on the shaded north facing banks the wintergreen (Pyrola), twinflower (Linnea), brittle fern (Filix), strawberries (Fragaria), and three- flowered-bedstraw (Galium). The most numerous birds of the groves are : Western Mourning Dove, Downy and Redheaded Woodpeckers, the Flickers, Kingbird, Alder Flycatcher, Magpie, Sparrow Hawk, Cross bill, Goldfinch, Western Lark Sparrow, Arctic Towhee, Black headed Grosbeak, W-hite-rumped Shrike, Yellow Warbler, Long- tailed Chat and Brown thrasher. Among the mammals the more conspicuous are the cottontail (Lepus) the chipmunk (Eutamias), the porcupine (Erethizon), the skunks (Mephitis and Spilogale), big brown bat (Eptesicus), red bat (Lasiurus), the pack rat (Neotoma), the raccoon (Pro- cyon), Kangaroo or jumping Mouse or rat (Zapus) etc. The Canada Lynx (Lynx) has been occasionally trapped in the forest reserves, and puma (Felis) are reported to have strayed into this country within the past decade. The Whitetailed Deer (Odo- coileus) is not yet quite exterminated. ,(c) The vegetation of the woods averages infinitely more bulky than does that of the grass lands. The trees of the open groves of this area all have a well developed tap root system. The dispersal of the seeds of the trees is left to the wind to accom- plish. Almost all the shrubs bear fruits which are edible to the birds which therefore distribute them. The birds, instead of being runners or walkers as those of the plains are mainly hoppers or creepers. Most of the nests are placed in the trees or shrubs. Several indeed, nest in holes in the THE ECOLOGY OF THE BUTTES 25 trees. There are numerous other characteristics of woodland birds. 4. THE BUTTES— PARTLY PIXE COVERED. The buttes of the forest reserve are all "flat" topped. The west member of the Cave Hills is called Table Mountain, be- cause it is so level. The margins at least of the tables are rocky. (a) Conditions: The buttes are more exposed to the winds. Because of the increased elevation and wind they are cooler than the steppe. In fact, excessively warm temperatures are nearly lacking. Occasionally, when the clouds hang low, the buttes re- ceive more precipitation, in the form of mist than do the lower elevations. (b) The most conspicuous plant is the western red or yellow pine (Pinus). The distribution of the pine is rather peculiar. It grows most generally on the slopes, especially the north facing ones, near the tops of the buttes. Locally it extends well down to the base, or even beyond onto the plain (in the case of a valley which heads in the southwestern part of the East Short Pines). Consequently it is not elevation alone that limits their growth. Neither is it slope alone for pines are found on the level top of the West Short Pines and elsewhere, but near slopes. The more probable explanation of the distribution is that pine seedlings can with great difficulty resist the climatic conditions except where protected by the slope or shaded by other pines which when they were young were so protected. The occasional pine on the level and not shaded by a pine which is on a slope is perhaps due to unusually favorable conditions such as being buried in a gopher hole. If slopes are here favorable to the growth of pine trees the question may naturally be asked why pines are not found on hillsides throughout the area. Four factors doubtless combine to bring about this result, (i) The absence of seeds from which pine might grow. The cones of seeds washed down from the buttes are carried along the channels of the ravines and not de- posited on the favorable slopes. The occasional cone favorably dropt as to slope may be prevented from starting a tree by (2) the thick cover of grass or by (3) prairie fires or by (4) the slope being so rapidly eroded as to undermine the seedling. One or more of the reasons is the cause for the lack of pines about the numerous small rocky buttes of this region. The forest service 26 THE BIOLOGY OP HARDING COUNTY holds that if pines were carefully set out and protected from fire, each moderately steep north-facing slope could be forested. The absence of pine on Table Mountain is probably due to the lack of proper lodgment for the seed here. The Western Red Cedar (Juniperus) forms thickets on some of the slopes in this general area though to no great extent in Harding County. There are cedar thickets in the forest reserve of the East Short Pines; also in "brakes" or badlands along the Little Missouri river, near the southern edge of North Dakota. The most extensive thickets are in some of the gulches on the divide south of the Moreau river in southern Perkins County. Short sighted indeed was the policy that permitted the destruction of these valuable groves while the land was still owned by the government. However, quarter sections for miles about are well . fenced. A third tree found about buttes is the quaking aspen (Populus.) Thickets are numerous on the talus slopes at the foot of cliffs especially north or east facing cliffs. Among the shrubs the more abundant are the dwarf and creeping junipers (Juniperus), skunk bush (Rhus) and sandcherry (Prunus). The chief grass is the bunch grass (Andropogon). The Spanish bayonet (Yucca) is common, as are also various "locos" (Aragallus and Astragalus). Other plants are Sieversia, Gilia, Phacelia Phlox, Cerastium, Northern bedstraw (Galium), small sage (Artemesia), blue-bell or hare-bell (Campanula), Ereogonium, Antenaria, Potentilla, Yarrow (Achillea) and the fern Woodsia. The grassy portions of the tables are covered with the plants of the plain, but the growth is more dense ; in fact the tables are quite extensively mowed for hay. The birds most often seen about the buttes in the pine woods are Hairy Woodpecker, Sharp-tailed Grouse, Pinyon Jay, White- winged Junco, Arctic Towhee, Western Tanager, Cedar Waxwing, Andubon's Warbler, Western House Wren, Long-tailed Chickadee, Western Robin and Mountain Bluebird. Several others nest about the cliffs, including Prairie Falcon, Western Redtailed Hawk, Golden Eagle, Western Horned Owl, Say's Phoebe, Rock Wren and White-Throated Swift, Turkey Buzzards roost in the pines. I have seen as many as twenty in one tree in the Slim Buttes. THE ECOLOGY OF THE BADLANDS 27 The mammal most frequently seen is the chipmunk (Euta- mais). Mounds of the pocket gopher (Thomomys), are plentiful; signs of the gnawing of porcupines are seen on many young pine trees. In the various small caves of Cave Hills many pack rats (Xeotoma) and bats (Corynorhinus) make their homes. 5. BADLANDS The badland areas include a large percentage of those marked as "rough land" on the general and soil maps of this area. The finest badland areas are near Reva Gap in the Slim Buttes and on the northeast side of the East Short Pines, and along the "jump off" but many small areas occur (see general map). The common custom is to call any area having slopes nearly bare of soil and vegetation ''badlands." (a) Conditions: In regard to precipitation these areas doubt- less fare approximately as does the adjacent plain. Their average temperature is probably somewhat greater, as is also the intensity of light, at least in badlands in the light colored formations. The relative absence of vegetation is seemingly due to two factors (i) because of the steep slopes with its consequent rapid run off, as well as the somewhat peculiar nature of the clay of most of the badlands, water is not absorbed to any great extent. Hence any vegetation which starts has an insufficient supply. The other factor is that the rapid erosion undercuts and soon destroys a con- siderable proportion of the seedlings which obtain a start. Con- sequently most of the vegetation of badland areas is at the foot of the steeper slopes, in the valleys. (b) Some conspicuous plants and animals of the badland areas are: The rabbit bush (Chrysothamnus*), Gutierrezia, Gold den Aster (Chysopsis), False boneset (Kuhnia), Mentzelia, Senecio, Machaeranthera, Thermopsia, Cheno podium Watsoni, Saltbush (Atriplex), the gumbo lily (Pachlophus), and several sages (Artemesia). Occasionally forming thickets: the buffalo berry ( Shepherdia) and the cedar (Juniperus). Birds that may be expected to be found nesting in Harding County badlands are the Rock Wren, Say's Phoebe, Prairie Fal- con, and Cliff Swallows. Western Horned Owls and White For full scientific names see technical lists which follow the Ecological Section. 28 THE BIOLOGY OF HARDING COUNTY Throated Swifts were noted as nesting in the badlands in the White River formation (Slim Buttes and E. Short Pines). The only common mammal is the pale chipmunk (Eutamas). Bob- cats are fairly plentiful. Formerly blacktailed mule deer and bighorn sheep could be found in the larger badland areas. (c) The badland life displays several peculiarities: The plants are mainly long-lived, perennial, chiefly compositiaceous, shrubs possessing powerful tap and anchor roots and narrow and pubescent leaves. All shrubs offer great resistance to erosion, under-cutting and slumping. They are also conservative, late flowering, and present to cattle very little edible stuff. Prac- tically every species has yellow flowers. In addition to these perennials there are various annuals which thrive during moist seasons on the moister alluvial flats. The animals are uniformly grayish in coloration with the exception of the bat and swifts. The crevices and eavelets furnish homes for the chipmunk, bat, bob cat, Say's Phoebe, Prairie Fal- con, Rock Wren, etc. The Cliff Swallow and White-throated Swift find the cliffs suitable for nesting sites. Several of the mammals are notable jumpers (Bighorn sheep and mule or black- tailed deer). 6. SANDY AREAS In this region most of the sand is found in areas covered by Morton Sandy Loam which covers a considerable portion of cen- tral and southeastern Harding County and northwestern Perkins County. (See soil map). Sandhills or dunes are most extensively developed locally southeast of Buffalo in central Harding county. Here and there along the river valleys sandy stretches occur and then in small areas sand is heaped into dunes. (a) Conditions: Though there is no more rainfall in the sand-hills than in the surrounding associations there usually is, except for small bare batches, much more vegetation. This is due to the fact that the sand at once absorbs any rainfall. For a short time after showers the evaporation is very rapid and if this were to continue long this absorbed moisture would soon disappear. However, evaporation from the surface layers of the wet sand soon becomes more rapid than water can be supplied from below by capillary action. . Consequently the capillary tubes become broken and evaporation stops long before any considerable amount AQUATIC ASSOCIATIONS 29 of the recent precipitation has disappeared. Relative humidity — As low as that of the steppe. Temperature — Above the average for this area. Light — intensity considerable, but many small areas shaded. Wind — Except in the protected depressions, average velocity and hot. (b) Abundant plants in sand areas: The chief grass is the sand grass (Calamovilfa), the needle grass (Stipa) is very plentiful especially on the more loamy sandy soil, the bunch grass ( Anclropogon) occurs in the rougher areas. The sand worm- weed (Ambrosia), the bee plant (Cleome), Clammy weed (Pola- nisia), annual erogonum (Eriogonum), and wormwood sage (Artemesia) and lupine (Lupinus) are perhaps generally the most conspicuous plants. Other abundant plants are Abronia, Allionia, Franseria, the brome rape. (Orobanche), the groundcherry (Physalis) spiderwort (Tradescantia) and spurge (Euphorbia). The most common shrub is the wild rose (Rosa). We found no birds or mammals characteristic of the sand areas here. Because of the small extent of the sandhills such would hardly be expected to be found. (c) Characteristics of sandhill vegetation. With few ex- ceptions the plants which grow on sandy soil have long tap roots —much longer than even very closely related plants which grow on firmer soils. Plants with long tap roots would probably be less likely to be killed by exposure caused by the drifting of the sand than would those with short roots. The vegetation is de- cidedly coarser than that of the steppe. Coarse plants would be less apt to be covered by drifting sand. Blowing sand undoubtedly prevents plants unable to resist it from becoming abundant. Pos- sibly the secretion of oil from the leaves of various plants such as the clammy weed, Abronia, Orobanche, may be a method of resisting abrasion. 7. STREAMS, PONDS AXD MARSHES The chief permanent streams are the Little Missouri river, the north and south forks of the Grand river and the north fork of the Moreau river. Most of the creeks are but a string of wraterholes connected except during rains only by seepage flows. The ponds are of two sorts (a) waterholes along the creeks and (b) "blow outs" most of which contain water only during wet spells. Marshes are very restricted. We found small ones at a 30 THE BIOLOGY OF HARDING COUNTY few points along brooks in the forest reserves. The largest are in the North Cave Hills. Boggy spots occur about springs in a few other places. A few characteristic aquatic plants and animals: The rivers flow swiftly and are subject to frequent floods. Submerged plants, other than algae are practically lacking. For a list of the plants found on moist shores see the next two heads. The chief animals are "clam" (Anodonta) and a snail (Sphaerium), several fish of which the following were collected: bullhead (Ameiurus), cat- fish (Ictalurus), buffalo-fish (Ictiobus), sucker (Catostomus), Dace (Phoxinus), Shiner or minnows (Notropis) — and various insect larva. The houses of Caddice flies are abundant on the submerged rocks. Some of the birds frequently seen along the rivers are the spotted and solitary sandpipers, killdeer, the king- fisher, th eherons and various ducks. Among the mammals musk- rats and beaver are the most plentiful — mink and otter occur. The ponds differ chiefly in their permanency as in this limited area "alkali" ponds are nearly lacking. The more permanent waterholes have an abundance of snails of several species and three genera (Lymnea, Planorbis and Physa), numerous insects (water beetles, water boatman, water striders, back swimmers, dragonfly and other immature stages of insects, etc.) ; crustacia are locally very plentiful. In the larger waterholes along streams suckers and minnows at least, among the fish, are found. Turtles and garter snakes represent the reptiles, and frogs the amphibians. Muskrats are the most abundant mammal. Killdeer and ducks are the chief birds. About the blowouts and other shallow ponds waders (sandpipers, etc.) are usually seen in migration. Killdeer nest near ithem. Submerged in waterholes we found the water butter cup (Batrachium), False Water Cress (Roripa), Pond weed (Potomagetan) and Chara. On the moist soil bordering waterholes are various marsh plants such as Arrowgrass (Trig- toclim), Water Plantain (Alisma) Arrowhead (Sagittaria) Cord Grass (Spartina), Sedge (Carex), Rushes (Scirpus, Juncus), Spike rush (Eleocharis), buttercup (Ranunculus) and Haler- pestes, Mint (Mentha), Hyssop (Gratiola) Beggar's tick (Bidens), Water hoar hound (Lycopus), waterhemlock (Cicuta) Willowher'b (Epilobum), and the 'smartweed (Polygonum), and dock (Rumex). CHARACTERISTICS OF AQUATIC LIFE 31 The marshes even though small have an abundant flora in- cluding many most of the above mentioned genera of marsh plants and in addition the cattail (Typha) the mat grass (Catabrosa), canary grass (Phalaris), and many less common species. The most characteristic birds noted were the redwing blackbird and the two rails. The aquatic life is in the main similar to that of the ponds; along the brooks in the forest reserve, however, the darter (Boleosoma) and brook trout (Salvelinus) were seen, the latter especially in Slick Creek. The fresh water shrimp (Gam- marus) is exceedingly abundant about some springs and brooks. Orchids (Limmochis) is one of the semi-aquatic plants noted only along brooks. (c) Characteristics of Aquatic Life. Plants and Animals found in marshes and other aquatic associations have characteristics which if they were less fre- quently exhibited would be quite striking. The plants are chiefly aquatic or semi-aquatic herbs, many of which are biennials or short-lived perennials. Ordinarily there is an abundance of available water and transpiration can be freely in- dulged in; occasionally, however, the swamps go partially dry. The plants which are most successful in a region where they fre- quently occur, are those which can resist such dryings. The fertilization is largely by the agency of insects and the seed dis- tribution by water and animals as well as by wind. The tick marigold (Bidens) is obviously adapted for animal distribution. Many, if not most, marsh plants also propagate by root runners. The mammals are all semi-aquatic and rear their young either in burrows above the water table or in houses. The musk- rat and beaver are examples. The birds nest in reed hung or floating nests. The females and nestlings are, in almost every case, grass-colored for protec- tion. Most species are swimmers or waders. Their bills are chiefly sharp and adapted to impaling, or are adapted to probing, or are supplied with strainers. Almost all the insects characteristic of marshes spend a por- tion of their life as aquatic forms. Examples are mosquitos, dragon-flies, damsel-flies., may-flies, water beetles, water boatmen, etc. 32 THE BIOLOGY OP HARDING COUNTY III. LIST OF PLANTS OF HARDING COUNTY, NORTH- WESTERN SOUTH DAKOTA.* Collected by S. S. Visher, determined by Aven Nelson, i. OPHIOGLO'SSACEAE (Adder's-tongue Family) i. Boirychinm virginianum (L) Sw. Rare in the forested buttes. 2. POLYPODIACEAE (Fern Family) 2.. Dryopteris FilLi'-mas (L) Schott. Shield Fern. Rare in deep narrow gorge, Cave Hills. 3. FilLv fragilis (L) Underw. Brittle Fern. Fairly abundant in deep shady ravines. 4. Pellaea atropnrpurca (L) Link.? Cliff Brake. Rare in crevices in rocks, Lodge Pole Butte. 5. Woodsia scopulina (DC) Eat. Abundant, growing in tuffs on exposed rocks about the buttes. 3. MARSILEACEAE *6. Marsilia mucronata R. Br. "Four-leaved-clover." Very abundant in waterholes, especially conspicuous after these holes go dry. 7. Marsilia vestita. Hook & Grev. Abundant on muddy bottoms if intermittent creeks. *The plants were collected, chiefly during July, August and the first week of September, 1910 and 1912. During June, 1911, most of the country was visited and some 90 numbers obtained. W. H. Over, formerly of Date, collected 16 additional species June 1-15, and a small collection by B. B. Rowley of the 1909 survey party adds 18 species. In addition 29 species are inserted, bracketted, in the list. F. D. Fromme collected about 200 species during" the summer of 1910 and identified them, chiefly by manuals, the following winter. Of these 200 some 29 are additions to my list of plants as identified by Nelson. Over one hundred and fifty of the following 467 species are not seemingly mentioned in any way in Saunder's Catalog; and about one hundred and twenty, marked with an asterisk, are added to the total known flora of South Dakota by these collections. A bibliography of the Flora of South Dakota flora. (1) Rydberg P. H. Flora of the Black Hills, Contrib. U. S. Nat. Herb. 3:463-536. (2) Flora of South Dakota, Bull 64, U. S. Experiment Station, Brookings, S. D. 1899. (3)S. S. Visher additions to the Flora of the Black Hills, I. Torreya IX, pp. 186-188 1909, 9 additions. II. Muhlenbergia VIII 12, pp. 135-7 1912, 13 additions. III. Muhlenbergia IX 1, pp. 33-39 1913, 31 additions. (4) S. S. Visher Plants of the Pine Ridge Reservation Bull 5 S. D. Geol. and Biol. Survey, pp 84-108, 1912, 96 Additions. (5) S. S. Visher "Additions to the Flora of S. D." I. Muhlenbergia p. 45-52, 1913. A revised list of the additions to the state based on the Pine Ridge collections. Also includes two species of Carex, not in Bull. 5. LIST OF THE PLANTS COLLECTED 33 4. EOUISETACEAE (Horsetail Family) 8. Equisetum ari'ense L. Locally abundant in moist wooded gulches, Cave Hills. Common along Little Missouri River near Willett. 9. Equisctum laez'-igatum A. Br. ffl Tolerably common on flood plains, and valley of buttes. 10. Eqiiisetum robnstnm A. Br. Rare on springy ground, East Short Pine Hills. 5. SELAGIXELLACEAE *ii. Selaginella dcnsa Rydb. Resurrection Plant. Very abundant locally on the dry soil of the plains. 6. PIXACEAE (Pine Family) 12. Juniperus coinmitnis Sibcrica (Burgsd) Rydb. Creeping Juniper. Abundant, especially in the shady woods. Frequent on the exposed surfaces of the tables. *I3. Juniperus sabina L. Very abundant on high grassy slopes especially on the sides of the buttes. 14. Juniperus scopulorum Sarg. Red Cedar. Forms extensive "Cedar brakes" along the Little Missouri River near the X. D. line, and occurs sparingly in the Slim buttes and somewhat abundantly in the E. Short Pines. Cedar apples (gymuosporanguin Xclsomi. Arth.) is common. 15. Finns scopulorum Sarg. Western Yellow or Bull Pine. Abundant. on the higher slopes of the forested buttes. Attain the diameter of three feet. Saw mills have been located in each of the buttes. AXGIOSPERMS 7. Typhaceae (Cattail Family) 16. Typha latifolia L. Abundant about artificial ponds, and marshes caused by slumping in the forest reserves. 8. XAIADACEAE (Pondweed Family) 17. Potamogeton Sp. Pondweed. Abundant, submerged, in some of the ponds of the creeks. Sig. — 3. 34 THE BIOLOGY OF HARDING COUNTY 9. JUNCAGINACEAE (Arrow-grass Family) 17. Triglochin maritima L. Arrow-grass, Abundant along some of the permanent streams. 10. ALISMACEAE (Water Plantain Family) 19 Alisma Plantago-aquatica L. Water Plantain. Very abundant on mud along all streams. 20. Sagittaria arifolia (Nutt) J. G. Smith. Arrowhead. Abundant along streams throughout. *2i. Sagittaria cuneata Sheld. Fairly common on the smaller water courses. n. GRAMINEAE (Grass Family) 22. Agropyron caninum (L) Beaut. Awned Wheat Grass. Rare, floodplain of north Moreau River ; abundant in ravines of Slim Buttes. *23. Agropyron dasystachyum (Hook) Scribn. Common in draws on the steppe. [Agropyron pseudorepens Scrib. & Smith. Determined by Fromme. "Practically equals A. tene- rum," Gray's Manual.] [Agropyron Smithii Rydb. Reported by Fromme.] 24. Agropyron tenerum Vasey. Slender Wheat Grass. Very common along valleys and draws throughout. 25. Agrostis hiemalis (Wats.) B. S. P. Tickle Grass. A very abundant grass; mixed with other grasses on the plains and floodplains, especially prominent in the bluestem- filled draws. Has "the tumble-weed habit." 26 Alopecurus fulous Smith. Shaded brooksides, West Short Pines. *27 Alopecurus pratensis L. Locally common on the steppe. 28 Andropogon furcatus Muni. Bluestem. Common on grassy hillsides and in draws of the steppe. (Indicates moister conditions.) 30 Andropogon Hallii. Hack. Common on sandy part of floodplains and about Cave Hills. 31 Andropogon scoparius Michx. Little Bluestem. Fairly plentiful on the plains. LIST OF THE PLANTS COLLECTED 35 32 Aristida longistcda Steud. Bunch Grass. Frequent on gravelly foothills of the buttes ; occasional on the hill-sides of the rougher parts of the plains. 33 Atheropogon curtipendula (Michx) Fourn. Tall Grama Grass. Rare, on grovelly foothills of all the higher buttes. 34 Beckmannia cntcacformis (L) Hast. Locally common in open woods of Little Missouri Valley. 35 Boutcloiia oligostach\a ( Xutt) Torr. Grama Grass. Very abundant on the steppe throughout. Grows in vague patches usually with buffalo grass. [Bromus altissimus Bursh. Reported by Fromme.] 36 Bromus cinatns L. Fringed Brome. Abundant in ravines in woods of Slim Buttes. *37 Bromus inermis Lyss. Locally common in open woods of the Little Missouri Valley. [Bromus purgans L. Brome Grass. Collected by Fromme.] 38 Buchloe dactyloides (Nutt.) Englm. Buffalo Grass. With the grama grass but more restricted to mesas and the higher steppe. *39 Calamagrostis hyperborea Lange. Reed Grass. Frequent along streams. 40 Calomozilfa longifolia (Hook.) Hock. Sand Grass. Abundant on sandy soil. On the steppe it occurs in patches usually a rod or two across. Such clumps apparently start about a large burrow where the soil is more porous and spread by means of root propagation. 41 Catabrosa aquatic a (L) Beauv. Forming great mats in sluggish portions of the brooks in the buttes. *42. Chaetochloa viridis (L) Scrib. Green Foxtail. Infrequent. Found in grassy depressions. 43. DisticJilis spicata (L) Greene. Alkali Grass. Very plentiful in alkali spots along valleys. 44 Hchinochloa crus-galli (L) Beauv. Frequent along water courses. 45 Hlymus canadensis L. Common along streams. 36 THE BIOLOGY OF HARDING COUNTY [Elymus glaucus Buckley. Smooth Wild Rye. Reported by Fromme.] 46 Elymus Macoutiii Vasey. Locally abundant on Antelope Creek and in open woods in Little Missouri Valley. (Extends range from little Minnesota Valley) [Elymus striatus Willd. Taken by Fromme.] [Elymus virginicus L. Virginia Wild Rye. Recorded by Fromme.] 47 Ericoma cuspidata Nutt. Common along floodplains and other valleys throughout. [Festuca ovina L. Sheep's Fescue Grass. Collected by Fromme.] *48 Festuca rubra L. Rare on the steppe. 49 Glycerin neruata (Willd.) Trin. Common on springy soil in the forest reserves. 50 Hordeum jubatum L. Squirrel tail. Frequent in open woods of Little Missouri and occasionally in wet spots on the plains. *5i Hordeum nodosum L. On open clay banks. 52 Koeleria cristate (L) Pers. June Grass. Abundant in the bunch grass association about buttes. 53 Muhlenbergia racemosa (Michx.) B. S. P. Common along brooks in the Slim Buttes. 54 Panicum capillare L. Frequent in moist soil of Little Missouri and other valleys 55 Panicum virgatum L. Locally common on floodplains. 56 Phalaris arundinacea L. Very abundant on open springy ground in the buttes. 57 Phleum pratense L. Common along brooks well up in Slim Buttes. *58 Poa e pilis Scribn. Rare in the West Short Pines. LIST OF THE PLANTS COLLECTED 37 *59 Poa interior Rybd. Meadow Grass. Rare, shady valley elevation 3,600 ft. in Slim Buttes Forest Reserve. *6o Poa laevigata Scribn. In shady valleys in Slim Buttes, abundant. 6 1 Poa ncrvosa (Hook.) Vasey. Rare in shaded valleys in the Slim Buttes. [Poa triflora Gilib. Fowl Meadow Grass. Reported by Fromme.] *62 Poa Sheldonii Vasey. Western Blue Grass. With P. interior; also collected by Fromme. 63 Pnccinellia airoides (Xutt) Wats & Coult. Frequent about the ravines of buttes and on wet soil. 64 Schedonnardus panicnlatns (Nutt.) Trel. Occasional in grasslands. 65 Spartina gracilis Trin. Cord, Slough or Marsh grass. Abundant on well-drained soils near water throughout the county. Flowers grade from red to white in color. 68 Sporobolus asperifolius Thurber. Dropseed Grass. Rare on the steppe. Collected by Fromme also. 67 $porvbolus~brevifoliuis (Nutt.) Scribn. Infrequently widely scattered. Grows in clumps along 'cut banks. 68 Stipa comata Trin. & Rupr. Needle, Spear or Devil's Grass. Predominant in certain areas especially those where the soil is somewhat sandy; also those sections which have been over pas- tured by sheep. 12. CYPERACEAE (Sedge Family) *69 Care.\- abbre-riata Prescott. Rare in West Short Pines. 70 Care.r a urea Nutt. Rare on springy ground at low altitudes about the buttes. *7i Carc.\- deflexa Farwellii Brit.? Common in mesophytic gullies in the Cave Hills. 72 Carex festucacea Willd. Infrequent along the Little Missouri and streams in the Short Pines. 73 Care.r grarida Bailey. Rare- in Moreau Vallev. 38 THE BIOLOGY OF HARDING COUNTY *74 Car ex Hookeriana Dewey? Rare, floodplains of Boxelder Creek. 75 Care.i- lanuginosa Michx. Abundant along some of the forest reserve brooks. 76 Care.i' longirostris Torr. Rare, in the West Short Pines. *77 Carex inonile Tuckm. Tolerably common along brooks in Slim Buttes. 78 Care.i' Sartzcellii Dew. Frequent in moist soil along Little Missouri River and on spring soil in the Short Pines. 79 Care.i' sic cat a Drew. Common in tall grass of bluestem swales. *8o Carex vesicaria L. Very frequent on the margins of the permanent streams of the higher buttes, and along the rivers. 8 1 Cy perns inflexus Muhl. Locally abundant in blowouts between Zeona and Govert. 82 Eleocharis aciculwis (L) R. & S. Common on moist ground bordering rather permanent bodies of water. 83 Eleocharis palnstris (L.) R. & S. Tolerably common on springy soil along the Little Missouri River. 84 Scirpus americamis Pers. Along streams and ponds. Probably the most abundant rush of the area. 85 Scrirpus atrovirens Muhl. Fairly common along streams of foothills and steppe. 86 Scirpus lacnstns L. Common on marshy ground. 87 Scirpus campestris Brit? Tolerably common about water. 13. LEMNACEAE (Duckweed Family) 88 Lemna minor L. Duckweed. Covering small stagnant ponds in the East and West Short Pine Hills. LIST OP THE PLANTS COLLECTED 39 14 COMMELINACEAE (Spiderwort Family) 89 Tradescantia occidentalis Brit. Spiderwort Occasional on the moister parts of the plains and along the floodplains. 15. JUNCACEAE (Rush Family) 90 June us balticus Willd. Found about an artificial pond near Ashcroft. 91 June us Ion gist y Us Torr. Common along the larger streams. 92 Juncus nodosus L. Frequent along shady brooks in the West Short Pines. 93. Juncus tennis Willd. With J. longistylis, less frequent. 94 Juncus Torreyi Coville. Very plentiful along streams and also about slight undrained depressions of the steppe. 16. LILIACEA (Lily Family) 95 Alliuni rcticulatum Fraser. Onion. Very abundant and widespread. *96 Allium rubrum Osth? Wild Onion. Abundant on the steppe. 97 Asparagus officinalis L/. Escaped from cultivation and locally fairly frequent in moist draws near Ashcroft. 98 Calochortus Xuttallii T. & G. Very abundant in the bunch grass of rough land. Valley side of foothills are showy with their flowers early in June. 99 Fritillaria atropurpurea Nutt. Quite general on the foothills of the buttes. 100 Lcucocnniiin inontanum Nutt. Plentiful on the prairie. 101 Yucca glauca Nutt. Abundant on the dry rocky slopes of the buttes, especially near the top. 17. MELANTHACEAE (Bunch-Flower Family) *IO2 Zygadenus intenuedius Rydb. "Death Camass." Especially plentiful in bunch grass association of rough land. 40 THE BIOLOGY OF HARDING COUNTY 18. CONVALLARIACEAE (Lily-of-the-Valley Family) 103 Disporum tray chy carp-urn (Wats.) B. & H, Fairly numerous on shady slopes of Cave Hills and other forested buttes. 104 Smilacina stellata (L) Desf. Common in and about open woods. 19. SMILACEAE (Smilax Family) 105 Neme.via herbacea (L) Small. Abundant in open deciduous woods of buttes and valleys. 20. IRIDACEAE (Iris Family) 106 Sisyrinchium an gusti folium Miller. Blue-eyed Grass. Not common in draws on the plains. 21. ORCHIDACEAE (Orchid Family) *io/ Limnorchis sparsiflora (Wats) Rydb. Common along the brooks of the Short Pines. 108 Limnorchis viridiflora (Cham.) Rydb. Not uncommon in marshy spots in the shady wooded gulches of the West Short Pine Hills. 22. SALICACEAE (Willow Family) 109 Populus angusti folia James. Narrow-leaved Popular. Rare, along Soft Water Creek, near Redig. no Populus occidentals (Rydb.) Brit. Cottonwood. The cottonwood is the most widely distributed tree of this section of the state. It occurs either singly or in groves along all the larger streams, a diameter of over three feet is oc- casionally attained. in Populus trcmnloides Michx. Quaking Aspen. Aspen thickets occur on talus slopes at the foot of cliffs and locally in the box canyons of the forested buttes. 112 Sali.\- amygdaloides Anders. Large Willow. Frequent along the streams throughout. 113 Sali.v Bcbbiana Sarg. Found at widely scattered localities. *ii4 Sali.v Fendlcriana Anders. Bunch Willow. Common on boggy soil in the Forest Reserves and also the Little Missouri River. LIST OF THE PLANTS COLLECTED 41 115 Sali.v flifiiatiiis Xutt. Locally abundant on the Little Missouri floodplain; also in the Short Pines. 116 Sali,r Sconlcriana Barr. Red Willow. In gulches in the several forested buttes. 23. BETULACEAE (Birch Family) 117 Betnla papvrifcra Marsh. Frequent in the valleys of the West Short Pine Hills. :;-n8 Bctula foutinalis Sarg. Found only once, about bog in the North Cave Hills. 24. ULMACEAE (Elm Family) 119 Ulmus fuh'a Michx. Red or Slippery Elm. Rare, found sparingly in canyons of the Forest Reserves. Trees of a fair size seen only in South Cave Hills. 25. MORACEAE (Mulberry Family) 120 Hninulns Iiipulus L. Hop. Frequently met with in the ash thickets in gulches of forested buttes. 26. URTICACEAE (Nettle Family) 121 L'rtica gracilis Art. Nettle. Fairly common on moist ground in the Slim Buttes and else- where in high open valleys. 27. SAXTALACEAE (Sandalwood Family) i22Comcndra pallid a A. DC. Bastard Toadflax. Tolerably frequent on foothills of buttes. especially on sandy es. POLYGONAOEAE (Buckwheat Family) 123 Eriogonum annuum Nutt. Abundant on the steppe. In flower as late as Aug. 25. *I24 l:,i'io^onui:i cenir.un Nutt. Abundant in caverns in the Cave Hills. 125 Eriogonum crassifoliuw Benth. Comm n n sand. 126 Eriogcnum flawm Nutt. n hilltops in rocks. 42 THE BIOLOGY OF HARDING COUNTY 127 Hnogonum nmlticeps Nees. Frequent on the steppe, abundant on sand where also the largest individuals are obtained. *I28 Eriogonum Visheri A. Nels? Dakota Eriogonum. Abundant on the steppe near Rabbit Butte, Perkins County. "As far as I can see now a good strong species; will describe it soon." — Professor Nelson. 129 Polygonum articular e L. Door-yard Weed, Knot-grass, Goose-Grass. Not rare along 'streams in all parts of the area. 130 Polygonum convolvulus L. Uncommon on moist ground in the forested hills. 131 Polygonum Douglasii Greene. Locally common on plains. 1.32 Polygonum crnersum (Michx) Brit. P. muhlenbergia Tolerably common in water holes. (Perkins County). [Polygonum erectum L. Erect Knot weed. Reported by Fromme.] :!:][33 Polygonum exsertum Small. Open woods in the Little Missouri Valley near routes of travel. [Polygonum lapathifolium L. Reported by Fromme.] 134 Polygonum pennsylvanicum L. Tolerably frequent in water holes and along streams. T35 Polygonum persicaria L. Fairly frequent on springy soil in Little Missouri Valley. [Polygonum ramorissimum Michx. Recorded by Fromme.] 136 Polygonum scandens L. Climbing False Buckwheat. Sparingly introduced. [Polygonum tenue Michx. Taken by Fromme.] 137 Rumex me.ricanits Meisn. Local on waste moist ground — abundant on Soft Water Creek r.iar Redig. LIST OF THE PLANTS COLLECTED 43 138 Rinne.v accident alls Wats. Conspicuous in small marshes in the moister valleys in West Short Pine Hills. 139 Rnmex renosns Pursh. Fairly frequent on the steppe. 29. CHEXOPODEACEAE (Goosefoot Family) 140 A triplex argentea Xutt. Uncommon on the steppe. 141 Atriplex canescenus (Pursh) James. Abundant on gumbo. 142 A triple A- hast at a L. Common on clay banks. 143 A triplex Nnttallii Wats. Salt Bush. Common in the badlands areas and on the drier steppe. *I44 A triplex philonitra A. Nels. Abundant on clay banks, etc. 145 A triplex Suchleyana (Torr.) Rydb. Common to abundant in badlands and on the rougher parts of the steppe. 146 Chenopodium album L. Lambs Quarters. Commonly introduced. *I47 Chcnopodiiun ainbrosioides L. Fairly frequent along South Grand River. 148 Chcnopodiiun Fremontii Wats. Wide spread but not abundant. 149 Chenopodium glaucnm L. On bare clay in cuts, along roads, creeks, etc. Fairly common. 150 Chenopodium hybrid inn L. Common about caves ; occasionally on the steppe. 151 Chenopodium leptophyllum (Mog.) Nutt. On the grassy table of Cave Hills. [Chenopodium rubrum L. Goats Elite. Reported by Fromme.] ^152 Chenopodium ]Vatsonii A. Nels. On plains and badlands locally this is a predominant plant. *I53 Corispermum nit id urn Kit. Bugseed. Locally common on steppe. 154 Enrotia lanata (Pursh) Moq. Winter Fat or White Sage. Rare on the steppe. 44 . THE BIOLOGY OF HARDING COUNTY 155 Monolepis Nuttalliana (R. & $•.) Engelm. Occasional in blowouts, on ''hard pan." 156 Solsola pestifer A. Nels. Russian Thistle. A very serious weed in small grain and flax fields. Occasion on the sod. *I57 Suaeda erecta (Wats.) A. Nels. Abundant on bare clay of blowouts on flats along streams. Also in fields. (Perkins Co.) [Suaeda depressa (Pursh) Wats. Reported by Fromme.] *I58 Suaeda Moquinii (Torr.) A. Nels. Locally common on foothills and tables. 30. AMARANTHACEAE (Amaranth Family) 159 Amaranthus retrople.vus L. Redroot. Rarely introduced, near Buffalo. 160 Amaranthus graecizans L. Tumble weed. More commonly introduced. 31. NYCT AGIN ACE AE (Four-o'clock Family) *i6i Abronia micrantha (Torr.) Chois. Infrequent in sandy areas of floodplains. 162 Allionia linearis Pursh. Abundant in fields, frequent along roads and occasionally on the steppe. 163 Allionia hyctaginea Michx. Rare on the floodplain of the Little Missouri near Ashcroft. *i64 Allionia pilosa (Nutt.) Rydb. Occasional on sand. 32. PORTULACACEAE (Purslane Family) 165 Talinnm peniflonim Nutt. Locally abundant on gumbo spots. 33. CAROPHYLLACEAE (Pink Family) 166 Agrostemina gigatho L. Corn Cockle. Rare, in fields, Perkins Co. 167 Cerastiiiui arrcnsc L. Chickweed. Abundant in the thin soil of the edge of the tables arc! in cracks in the cap rock of the LIST OF THE PLANTS COLLECTED 45 168 Lychnis Drummondii Wats. Cockle. Occasional along Antelope Creek near Rabbit Butte, Perkins County.) *i6o, Paronychia scsselifolia Xutt.? Abundant in gravelly soil -in the drier parts of the steppe. Grows in compact clumps from a strong root. 170 Saponaria -laccaria L. Cockle. Occasionally introduced into fields. 171 Silenc sp. Occasional on gravelly foothills of the buttes. 34. RAXUXCULACEAE (Buttercup Family) 172 Anemone cylindrica Gray. Xot rare, on the steppe and the swales of the foothills. 173 Batrachinm trichophylhtm ( Chaix.) Bossch. Floating Butter- cup. Locally abundant, submerged, in water holes of streams on steppe. *I74 Clematis occidentals Homem. Widespread especially in boxelder groves. 175 Halerpestes cymbalaria (Pursh) Greene. Abundant on the wet flats of the floodplains of streams on the plains. 176 Pulsatilla hirsittissima (Pursh) Brit? Pasque Flower. Fairly abundant, but inconspicuous in summer. The unusual event of finding pasque flowers in full bloom on August 26, 1910, was probably associated with the drought of the early part of the year. Specimens sent Professor Xelson were re- ported not to be typical. 177 Ranunculus abortions L. Tolerably common on springy ground in the buttes. [Ranunculus o-ralis Rat. Reported by Fromme.] *I78 Ranunculus crcmogencs Greene. Uncommon along brooks in the fores: reserves. 179 Ranunculus pcnnsyh'anicus L. Xot uncommon in the shaded valleys of the Slim Buttes. 180 Ranunculus Macounii Brit. Rare along brooks in the Short Pines. 46 THE BIOLOGY OF HARDING COUNTY 181 Thalictrum dasycarpnm F. & L. Meadow Rue. Occasional in the small openings along streams at high alti- tudes in the buttes, sometimes abundant. 35. BERBERIDACEAE (Barberry Family) 182 Berberis aquifolium Pursh. Common in the forest reserves. Surprising abundant on the eastern foothills of Slim Buttes in Reva Gap. 36. PAPAVERACEAE (Poppy Family) 183 Argemone intermedia Sweet? Prickly Poppy. Occasional on the steppe. 184 Corydalis aurea Willd. False Dutchman's-breeches. Several clumps were found in the higher ravines of the Short Pines. 37 CRUCIFERAE (Mustard Family) *i85 Arabis caduca A. Nels. Rare, Short Pine Hills. 1 86 Arabis hirsuta Scop. Wide spread and fairly plentiful. 187 Brassica arvensis (L.) B. S. P. Yellow Mustard. Sparingly introduced into fields. 188 Camelina sativa Crantz. False Flax. Local in badlands near East Short Pines. 189 Capsella bursa-pastoris Medik. Shepherd's Purse. Naturalized from Europe but now very abundant everywhere. 190 Draba nemorosa L. In fields and on plains. 191 Hrysimum asperum DC. Tolerably common on the steppe throughout but especially on the foothills. 192 Hrysimum asperrimum (Greene) Rydb. On bare clay in the steppe, not at all common. 193 Hrysimum cheiranthoides L. Western Wallflower. Wide spread but not abundant, open woods, brooks and steppe. 194 Hrysimum inconspicuum (Wats.) Mac M. Rare on the steppe, Rabbit Butte, Perkins Co. 195 Lepidum apetalum Willd. Pepper grass. Sparingly introduced on the steppe. OF UNIVERSITY V f> T / «*H % LIST OF THE PLANTS COLLECTED 47 [Lepidium medium Greene. Reported by Fromme.] ^196 Lesquerella alpina (Nutt.) Wats. Common on the bare soils of tables, etc. *I97 Lesquerella argentia (Pursh) Mac M. Globular-podded Crucifer. Common on the steppe. *I98 Lesquerella Lunellii A. Nels. Abundant on the steppe. 199 Physaria didymocarpa Gray. Rare, Slim Buttes, June. *2OO Roripa lyrata (Nutt.) Rydb. Abundant on muddy margins of streams throughout. 20 1 Roripa paluslris (L.) Bess. Fairly abundant in mud along streams throughout the area. 202 Roripa sinuate (Nutt.) A. S. Hitch. Nastursian. Uncommon in open woods along the Little Missouri Valley and elsewhere along streams. 203 Roripa "close to R. sinuata but likely distinct." A. Nels. Fields, roadsides, etc., near Rabbit Butte, Perkins Co. 204 Sophia incisa (Engelm.) Greene. Tansy Mustard. Plentiful about the Short Pine Hills. *2O5 Sophia pinnata (Walt.) Brit. Common on tables of buttes. 38 CAPPARIDACEAE (Capper Family) 205 Cleome serrulata Pursh. Bee-plant. Infrequent on sandy floodplains. *2o6 Polanisia graveolens Raf. Common in sand. 207 Polanisia trachysperma T. & G. Clammy-weed. Abundant on :sand along valleys. 39. SAXIFRAGACEAE (Saxifrage Family) 208 Heuchera hispida Pursh.? Alumroot. Rare in the shade at high altitudes in the buttes. *2O9 Heuchera valifolia Nutt. Fairly numerous in cracks in the rocks in gulches in the forest reserves. 48 THE BIOLOGY OP HARDTNG COUNTY 40. GROSSULARIACEAE (Gooseberry Family) *2io Ribes americanum Nutt. Common. 211 Ribes cereum Dougl. Red Currant. Quite abundant about the buttes. *2I2 Ribes hudsonianimi Rich. Currant. Abundant along the sides of the larger valleys and in the coulees. *2i2 Ribes longiflorum Nutt. Golden or Missouri Currant. Common in open woods. *2I4 Ribes sa.rosnm Hook. Common wild gooseberry. Fairly abundant in thickets throughout the county. 214 Ribes setosum Lindl? Not uncommon in the woods. 41. ROSACEAE (Rose Family) *2i5 Agrinomia Brittoniana Bickn. Rare on springy ground in the buttes. 216 Dasiophora fruticosa (L.) Rydb. Shrubby Cinquefoil. Locally abundant on rocky slopes in the South Cave Hills. 217 Drymocallis argnta (Pursh) Rydb? Rare on the margins of Table Mountain. 218 Fragaria americana (Porter) Brit. Wild Strawberry. Not uncommon on the shady north facing banks of ravines in the forest reserves. 219 Geiwn canadense Jacq.? Rare along wooded valleys. 220 Geum strictum Ait. Along streams throughout especially in the reserves. Com- mon . *22i Potentilla biennis Greene. Frequent in open woods of the valleys and on the steppe. 222 Potentilla concinna Rich? "Probably a form of this species" Nelson. Common about buttes. 223 Potentilla Hippiana Lehm. On the grassy table of the Cave Hills, infrequent. 224 Potentilla monspliensis L. On springy ground in the West Short Pines. LIST OF THE PLANTS COLLECTED 49 *225 Potcntilla penns\kauica arachnoidea Lehm. Tolerably common on the plains. *226 Potcntilla pennsylvanica strigosa Pursh. In grasslands, frequent. [Rosa Arkansana Porter. Abundant on the steppe, determination by Fromme.] *227 Rosa Fendleri Crepin. \Yild Rose. Common on the steppe. In flower as late as July 23 in 1910. Abundant in woodlands of buttes. *228 Rosa Sayi Schwein. Longfruited Rose. Locally common in woods of Slim Buttes. 229 Rosa IVoodsii Lindl. Plentiful in open woods, and also on the steppe. 230 Rosa sp. Abundant on the plains. Reported by Professor Nelson as propably a new species. Xo. 582. 231 Rosa sp. "These tiny roses I do not know." Professor Nelson. Com- mon in the East Short Pines. 232 Rubus strigosiis Michx. Red Raspberry. In thickets especially in talus at the foot of the escarpments of the buttes. 233 Sicrersia ciliata G. Don. Abundant on tables and foothills. 42. POMACEAE (Apple Family) 234 Auiclanchicr alnifolia Nutt. Juneberry, Service-berry. Scattered specimens wherever copses occur. Very abundant in the buttes. 235 Cratacgus Shcridana A. Nels. Thorn-apple, Hawthorne. Forming small thickets in coulees, in the gulches in the buttes and occasionally along the valleys in the low-lands. 43. DRUPACEAE (Plum Family) 236 Primus americana Marsh. Wild Plum. In close thickets in open gulches, at base of cliffs about buttes, and along streams of the plains. 237 Primus Bcsscxi Bailey. \Yestern Sandcherry. Frequent on the dry hillsides especially on the foothills of the buttes. Sig.— 4. 50 THE BIOLOGY OF HARDING COUNTY 238 Prunus melanocarpa (A. Nels.) Rydb. Western Chokecherry. In thickets in wooded parts of the valleys. Less abundant than the Wild Plum. 44. LEGUMINOSAE (Pea Family) 239 Amorpha canescens Nutt. Lead Plant, Shoe String. Abundant on the steppe, even locally giving the color to the landscape early in August. 240 Aragalhis Lambertii (Pursh) Greene. Loco. Oxytropis lambertii Pursh. Very plentiful in the bunch grass association on the foothills. *24i Aragalhis dispar A. Nels.? Common on the plains especially in the rougher areas. 242 Astragalus bisulcatus (Hook) Gray. Along streams, frequent throughout. 243 Astragalus caespitosus (Nutt.) Gray? Abundant on gravelly soil in the drier parts of the steppe. Grows in compact clumps from a strong tap root. 244 Astragalus carolinianus L. Locally abundant along the Little Missouri River. Astragalus diversifolius Gray? Rare on table of Short Pine Hills. Astragalus elatiocarpus Sheld. Rare along roads on the plains of southern Perkins Co., etc. 247 Astragalus lotiflorus Hook. Abundant on rougher land. ^248 Astraguhiis nitidus Dougl. Tolerably frequent about buttes. *249 Astragalus pauciflorus Hook? Prof. Nelson thinks more material might indicate that this represents a new species. Fairly frequent in the bunch grass association on the foothills of the forested buttes. *25 late as August 5'. The Killdeer is certainly our most 72 THE BIOLOGY OF HARDING COUNTY common water bird. Almost every pond, or even permanent puddle has its brood and each lake is the home of several pairs. Though in our state killdeers prefer to nest near water, I have found broods who could claim only a small patch of moist earth as their own. But you may be sure this wet ground was claimed as vociferously as though it had been an artesian well pond. The Killdeer is one of our noisiest of birds. Its loud killdee, killdee, killdee, repeated incessantly is heard so fre- quently as to be familiar to all. In fact its harshness is such that it often is an unwelcome call. However, I never met a "man with soul so dead" as not to be thrilled by the cheerful calls of the first killdeer to return in March. ir This bird has an exasperating habit of signalling the ap- proach of an intruder. Often it. will fly a quarter of a mile with loud outcries to meet and scold the sportsman who is trying to get within shot of a flock of ducks, and it will often follow a man or dog a long way, advertising his presence. If the nest of downy young be approached the parents re- double their complaints and may become almost frantic in their endeavors to lead us away. They run ahead, limp, fall over, flutter seemingly helplessly and otherwise pretend to be wounded. I suspect that every boy at least once in his career was so well deceived that he chased after the wounded bird only to find that a sudden cure has taken place. Again and again have I seen a daring mother so tempt a dog by flut- tering almost within his reach as to lead him far from her helpless young. Such is the mother instinct ! "The Killdeer is particularly valuable to the farmer on account of its fondness for grasshoppers and for insects of cultivated land. As many as 49 locusts have been taken from a single Killdeer's stomach and the average of six stomachs was 44." Piping Plover (Aegialitis ineloda}. One seen and heard on Box- elder Creek, July 17-18. Prairie Chicken (Tyinpannchns aincricanns). Fairly abundant resident in the valleys near the Short Pine Hills. Feeds almost solely on "buffalo-berries" during their season, August and September. LIST OP THE BIRDS SEEN 73 Gray Ruffed Grouse (Bonasa nmbcllus umbell&ides). One seen in the Short Pine Hills. Fairly abundant in the Long Pine Hills. Prairie Sharp-tailed Grouse (Pedioecetes pkasianellus campestris). Very abundant resident along the permanent 'streams and in the park-like area at the top of the buttes and near their base. Broods this year contain about twelve. One nest was found in a clump of " buck-bush" (Symphoricarpos). It was only a slight hollow. The stomach of a bird of the year, shot August 14 on the mesa of the South Cave Hills, con- tained 200 flying ants, 4 small (shorthorned) grasshoppers, i small beeetle ( Chrysomelidae), I small caterpillar, 25 black currants, 50 pods of wild flax. Sage Hen (Centrocercus nrophasianns). Abundant resident in the areas covered with scrub sage-bush (Artemisia tridentata), where water is far distant ; therefore mainly found on the terraces in the stream valleys. Eight live tapeworms, the largest a foot long, were taken from the body cavity of an adult female which, though in good health, was solitary.. The Sage Grouse is in many respects one of the most in- teresting of the birds of many portions of the west. The cock is almost as large as a hen turkey, so he is big enough to attract anyone's attention. All grouse are wonderfully effectively colored from the standpoint of protection. Some, of which the sage hen is one, have so much confidence in their invisibility that they have been dubbed "Fool Hens" because they allow such close ap- proach. It is astonishing how completely hidden a sage chick can be even on bare ground. Many a time I have come upon a mother walking conspicuously along with her brood. \Yhen she flew they wouM squat on the short grass and disappear from sight. It is a mighty good test of acuteness of observation to then try to find all the young. Perhaps some may be located quite easily but others "in plain sight" will not be seen until they fly almost from under one's feet. Formerly they were found in many sections of western South Dakctn and westward. The last ones recorded from this state, except in the northwestern corner, were found in Sage Creek in the Badlands in 1907. By 1910 all were gone except those in 74 THE BIOLOGY OF HARDTNG COUNTY Harding and Butte Counties. Now (1913) after three more years of homesteading Sage Grouse are restricted in this state to the Little Missouri Valley in Hiarding County and to the headwaters of Indian Creek in Butte. In a very few years they will occur in South Dakota only as a rare winter straggler from Montana. This wide spread extermination of the Sage Grouse is in spite of the fact that the flesh of all but the youngest Sage Hens tastes so strongly of !sage that they are not usually considered edible. Sage hens are somewhat destructive to gardens and are sometimes killed as pests. The young, which are easily shot with a 22 rifle, are used extensively as food. Polygmany among wild birds is very rare and the Sage Grouse is one of our few examples. The mating dance takes place in April and May and lasts from dawn till well along in the fore- noon. Upon an open grassy slope as many as fifty of these stately birds will gather. The cocks walk about with tail wide spread and the neck much distended by the enflatment of the air sacs. Upon approaching a female the male drags one wing on the ground. From time to time the cock utters a dull ringing- note which can be heard but a very few rods. The females seem to pay but Httle attention to the dance nor do they select mates in any obvious manner since several are looked upon with favor during a single morning. The nest is made in slight depression and contains from seven to nine spotted eggs. The young remain with the mother until winter. They spend the night, not on the lower flats along streams where most of the day is spent, but on the edge of upland frequently near the border of a patch of sand grass. The flock sleep within a few feet of each other. The mother clucks to her very young chicks after the same manner as does the domestic hen. During the summer the cocks congregate together while un- fortunate females are solitary. Sage Hens require drinking water and are hence found near water-holes. Since a few small trees are usually found near our permanent pools, the most frequent place to find Sage Hens in the heat of the day is sprawled out in the shade of the single tree, or under a rearby "cut bank." LIST OF THE BIRDS SEEN 75 Western Mourning Dove- (Zenaidura macronra marginella). Though a common breeder in the groves along the streams it is but rarely seen in driving about the country. The Mourn- ing Dove, also known as Turtle Dove, Wild Pigeon, etc., is very plentiful especially in the autumn. It arrives from the south early in April and departs in October or November, depending upon the season. The cooing is one of the most soothing of the notes of our groves. The free, swift flight of the [Mourning Dove and the skill with which he manages his airship proclaim him a traveller. As he shoots by over head he cuts the air with the hiss of a bullet. Mourning Doves ordinarily build a slight nest of twigs in low trees but frequently they nest on the ground. This is one of our most useful birds feeding chiefly upon weed seeds but destroying many grasshoppers in season. Though doves eat considerable grain it is almost entirely the stray kernels which have been spilled along the roads. Turkey Vulture (Carthartcs aura septentriondis). Tolerably abundant summer resident about the higher buttes. Especially abundant about Slim Buttes, where thirty or forty were found roosting together in a large pine tree during the last week of August. Marsh Hawk ( Circus hndsoniiis). A common summer resident on the plains. The Marsh Hawk is certainly our most easily recognized hawk and even it is often misidentified because of the different color phases. The young have a general reddish aspect while the aged birds, especially the males, become quite hoary. However, they always can be known by their white patch on their lower, back or rump in con- .lection with their habit of flying close to the ground. They never soar, never fly high, never perch in trees, and very seldom on fences. The Marsh Hawk is of very great value to the farmer. They are constantly passing to and fro over his meadows on the outlook for mice and gophers. Once in a long while an immature Marsh Hawk, before he has learned to catch mice very well, may pick up chickens now and then. The old birds apparently never bother poultry and deserve the farmer's protection. 76 THE BIOLOGY OF HARDING COUNTY Goshawk (Astur articapillus). One seen in the Cave Hills, August 12. One reported by Saunders from near Harding Nov. 7. Sharp-shinned Hawk (Accipiter relo.r). Common during the autumn migration, which commenced August 22. Cooper's Hawk (Accipiter cooperi). Several seen early in Sep- tember along the Little Missouri Valley. Western Red-tail (Buteo borealis calurus). A common summer resident throughout the area. Krider's Hawk (Buteo borealis krideri). Two were observed, apparently near their nest, at the cliff of the Cave Hills. Swainson's Hawk (Buteo szvainsoni) . Abundant summer resi- dent. Rough-legged Hawk (Archibnteo lagopus ^ancti-johannis). Seen July 14, and three or four times during the last of August and the first of September. Ferruginous Rough-leg (Archibnteo ferrugineus). Quite abundant on the plains. Nests in the buttes. Especially numerous after August 20. Golden Eagle (Aquila chrysaetos). A common resident about the high buttes. Aeries were seen in the Cave Hills and in the Short Pines. Bald Eagle (Haliaeetus leucocephalus). One 'seen July 20 on the Little Missouri. Prairie Falcon (Falco mexicanus}. Abundant summer resident in the badlands and elsewhere where clay cliffs occur. Duck Hawk (Falco peregrinns anatum). Rare. Seen twice. Pigeon Hawk (Falco columbarius). Rare autumn migrant along the Little Missouri Valley. Sparrow Hawk (Falco sparverius) . Abundant summer resident on the plains. Osprey (Pandion lialiactus carolinensis) . One seen September 2 . • along the Little Missouri River. Western Horned Owl (Bubo vtrgiwianus hallcsccns'). Abundant resident in the badlands and about the stepper buttes. .Short-eared Owl (Asio flammeus). Grinnell reported several from the Little Missouri Valley. I have seen this species chiefly east of the Slim Buttes and in .Perkins County. Under the name of Fanning Owl it is fairly well known there. LIST OF THE BIRDS SEEN 77 Snowy Owl (Xyctca nyctca). A frequent winter visitor. Saund- ers reports several seen north of Camn Crook December 14. Burrowing Owl (Speotyto ciinicnlaria Jiypogaea). Abundant in some of the prairie-dog towns. Black-billed Cuckoo (Cocoysits erythrvphthalmus) . One ob- served July ii in the Little Missouri Valley within six miles of the Montana line, and a short distance north of Harding County, in Xorth Dakota. Kingfisher (Ceryle alcyon alcyon}. A few pairs nested along the Little Missouri River, and one on the largest stream of Cave Hills. Rocky Mountain Hairy Woodpecker (Dryobates rill os us uionti- cola). Rare summer resident in the forested buttes and along the Little Missouri near Camp Crook. Bachelders Downy Woodpecker (Dryobates pubesccns homorus). 'Much more frequently seen than the preceding. A specimen collected near Willet identified by Biological Survey. Red-headed Woodpecker (Melanerpes zrythroceplutlus}. An abundant summer resident in the groves of the Little Mis- souri Valley, and sparingly in the buttes. Northern Flicker (Colaptes auratus luteus). Breeds wherever trees occur ; much more frequent east of the Little Missouri than west of it. Red-shafted Flicker (Colaptes cafer collaris). A common sum- mer resident in and west of the Little Missouri Valley. More rare to the eastward. NuttalFs Poonvill (Phalaenoptilus nuttaUi nuttaUi). A frequent breeder in the high buttes. One was seen on the mesa of Cave Hills, one in badlands in Slim Buttes, and a third was flushed in an arroya at the base of Slim Buttes. They were heard each night during the two weeks spent about the Cave Hills in 1910. Bennett's Xighthawk (Chordeiles wi-giiiianus senn-etti). Common breeder in the plains. The Xighthnwk, often called Bull Bat, is a very picturesque bird. During the day time it sits on fence posts, or stones nearly asleep. Yet when disturbed it may fly about peenting shrilly even in the middle of the hottest and brightest days. In fact the jerky zig-zag flight and loud call of the nighthawk is constantly associated in my 78 THE BIOLOGY OF HARDING COUNTY mind with our most sultry days. The loud boom which sounds as the long swoop earth-ward is ended is more fre- quently heard in the early evening. The Nighthawk nests on flat stones or on the ground and the eggs and young are so well protected by their coloration as to be very difficult to find. The food of the nighthawks consists of insects of which myriads are destroyed. As many as nearly 2,000 flying ants have been taken at one time from the mouth and stomach of a single bird. Since such food is digested very rapidly the total number eaten must be enormous. White-throated Swift (Aeronantes inelanoleucus). Several pairs nested on the high castellated buttes of Slim Buttes and a few at the north end of the East Short Pine Hills. Kingbird (Tyrannus tyrannus). Nests sparingly, usually in box- elder trees, wherever trees occur. The Kingbird is so well known that it needs but scanty mention. In some parts of the country it is called the bee-bird ; but the Biological Survey after the examination of many stomachs has found that though it sometimes catches honey bees, they are usually the large, slow flying drones and not the valuable workers. Since ninety per cent, of his food consists of insects, mostly of grass- hoppers, crickets, butterflies, weevils, wild bees, wasps and gadflies it is seen that the Kingbird is another of the farmers' friends. The Kingbird is pugnacious and does not hesitate to attack and drive away hawks and owls. It scarcely ever molests birds smaller than itself. Arkansas Kingbird (Tyrannus rerticalis). Rare in the area un- der discussion. One pair nested in the foothills of the Cave Hills and two more in the extreme eastern and southeastern portions of the county. Their favorite nesting site, a small tree near a farm house on the plains, is almost lacking as yet. Say's Phoebe (Sayornis saya). Abundant summer resident wher- ever cliffs occur. Therefore most numerous in the badlands. Western Wood Pewee (Myiochanes richardsoni richardsoni) . Nests rarely in the forested parts of the high buttes. LIST OF THE BIRDS SEEN 79 Olive-sided Flycatcher (XnttaUornis borealis). One was seen in Slim Buttes August 20. Alder Flycatcher (Empidona.v trallll alorum). Nests, not fre- quently, along the Little Missouri and in canyons of the forested buttes. Least Flycatcher (Empidon&x minimus). A pair nested in a grove in a valley in Cave Hills. Desert Horned Lark (Otocoris alpestris leucolaema) . One of the four most numerous residents of the plains. A nest with four eggs was found July 15. \\e estimated that there were perhaps twenty-five adults to each section (640 acres) of land. The Horned Lark is with us the year round. It is a demure, companionable little bird of roadsides, along which it runs a fearlessly vanguard for travelers ; or from which it may be seen perching on wayside fence posts with its little horns raised in curosity as we pass. Its quaint ditty is usually rendered from the ground, a stone or a post but in the nesting season, .which commences as early as March, the males frequently circle around high in the air for several minutes poising repeatedly for an out pouring of song. Since the Horned Lark is a very close relative of the Famous Eng- lish Sky Lark which always sings on the wing, this trait of our bird might be expected. So far there is no evidence that Horned Larks are in- jurious ; on the contrary examination of stomachs show that from the large number of weed seeds, and the considerable number of harmful insects eaten, that they are decidedly beneficial. Magpie (Pica pica hudsonla). Common resident in groves in the Little Missouri Valley and in canyons of the buttes which are filled with deciduous trees. Raven (Corrns cora.r principalis) . Reported by Catron to be abundant at Camp Crook during the very coldest weather only. "Ravens were seen almost every day on the way to the Black Hills. They had bred on many of the lofty buttes that we passed." (Grinnell.) Crow (Comts brachyrhynchos) . A common migrant. A few nest near Camp Crook in the Little Missouri Valley. 80 THE BIOLOGY OF HARDING COUNTY Clarke's Nutcracker (Niicifraga columbiana). A frequeni sum- mer resident in the forested Short Pine Hills — no nests found. Pinion Jay (Cyanocephalus cyanocephahis) . In 1910 we saw Pinion Jays only in the North Cave Hills; residents i* form me that they spread to the Slim Buttes that fall. I found them in the Short Pine Hills in 1911. Bobolink (Dolichonyz oryziz'orns) . Rare summer residents along the Moreau River. Cowbird (Molothrus atcr ater). Grinnell found this species numerous. We found it very rare in 1910 but frequeni in 1911 and 1912. Yellow-headed Blackbird (Xanthocephalus .vanthocephalus). An occasional migrant only, because of absence of reedy marshes. Thick-billed Red-wing (Agelaius phoeniceus fortis). A common migrant. A few pairs nested in a tiny marsh in the North Cave Hills. Western Meadowlark (Sturnella neglecta). Abundant nester on the plains and on the mesas of the buttes. We estimated that there were about ten pairs to each section of land. From the standpoint of the agriculturist the meadowlark has few rivals ; in fact we know of not a single bad habit. Seventy- five per cent of its food for the entire year is made up of insects. Grass seeds and weed seeds make up the rest. It rarely eats grain of any kind and probably never takes sprouting grain or grain from head or shock. It lives on grasshoppers, crickets, spiders, cut worms, caterpillars and a variety of other insects especially those to be found in meadows. Professor Beal of the Biological Survey calculates that by killing grasshoppers and other insects meadowlarks save for man's use, at the lowest estimate, twenty-five dollars worth of hay per township per year, on the average the whole country over. Bullock's Oriole (Icterus Bullocki). One pair was found nesting in a grove in the Little Missouri Valley July 20. Brewer's Blackbird (Euphagus cyanocephalus) . Abundant breeder. Fifty or so fly around together after the breeding season. Ecologically they replace the Cowbird, the Redwing, the Crackle, and the Yellowhead. That is to say, they inhabit groves, etc., much as do the Crackles ; they follow the plow, South Dakota Geological Survey. Plate 5 Western Meadow Lark LIST OF THE BIRDS SEEN 81 etc., as do the Yellow-heads; they hang about streams as do the Redwings ; they follow the cattle as do the Cowbirds ; and in addition, they wade in the water as do Snipe. Bronzed Crackle (Quiscalns quiscula aeneiis). Several nested near Reva in Slim in 1911. Crossbill (Lo.ria currirostra minor). A frequent summer resi- dent wherever trees are plentiful. After the breeding season they fly about in flocks of twenty or thirty. Redpoll (Acanthis linaria linaria). Saunders reports having seen a small flock of Redpolls in the \Yest Short Pines, Novem- ber 6. Goldfinch (Astragaliniis tristis). Not uncommon during the summer. Pine Siskin (Spin-its pinns). A small flock was seen early in September. English Sparrow (Passer domesticns). Abundant in the only large town, Camp Crook, even when there was no railroad nearer than 80 miles. Snow Bunting (Plectrophena.v nivalis niz'alis). Flocks of Snow Bunting were seen by Saunders during the last half of No- vember, and first half of December, the time he was in that region. Lapland Longspur (Calcarius lapponicus lapponicus). Reported by Saunders to have been abundant during his stays. Chestnut-collared Longspur (Calcarius ornatits). Abundant breeder on the plains of the eastern part of the county ; less numerous westward. McCown's Longspur (Rhynchophancs nutccowtti). Abundant on the plains. This and the preceding probably outnumber the Horned Larks. A nest containing young just hatched was found July 16. \Yestern Vesper Sparrow (Pooecetes gramineus confinis). A com- mon summer resident on the plains. Very frequently seen dur- ing the first half of September. \Yestern Savannah Sparrow (Passerculus sanduuichensis alaud- iuus). Seen September 1-6. It may be expected to nest here. Sig. — 6. 82 THE BIOLOGY OF HARDING COUNTY Baird's Sparrow (Ammondramus bairdi). Breeds rarely in the moister draws of the -steppe. Common as a migrant toward the close of August and early in September. Western Grasshopper Sparrow (Ammodramus savannarum bima- culatus). Nests in the moister blue-stem swales of the east- ern part of the area. Western Lark Sparrow (Chondestes grammacus strigatus). A common breeder in the groves along the streams. They left the region about August. White-crowned Sparrow (Zonotrichia leucophrys leucophrys). A few were seen several times early in September. Western Tree Sparrow (Spizella monticola ochracea). Common in the Short Pines in December (Saunders). Western Chipping Sparrow (Spizella passerina arisonae). Rare summer resident along the Little Missouri. Quite numerous in the Slim Buttes during the last half of August. Clay-colored Sparrow (Spizella pallida). Seen once in July on the plains. Western Field Sparrow (SpizeUa pusilla arenacea). Not un- common on the foothills of the higher buttes, where suitable situations occur — copses and grass. Occasional elsewhere. White-winged Junco (Junco aikeni). Common nester in the Short and Long Pine Hills. Fledgelings observed July 20 in the Long Pines. Dakota Song Sparrow (Melospiza melodia Juddi). Nests in each of the suitable localities about the buttes. Quite common as a migrant after August 21. Lincoln's Sparrow (Melospiza lincolni lincolni). One collected September 7, 1912, in the East Short Pines. Swamp Sparrow (Melospiza georgiana). One seen August 22 on the Moreau River. Arctic Towhee (Pipilo niaculatus) . Abundant breeder wherever woods occur. Black-headed Grosbeak (Zamelodia melanocephala). Abundant nester in those parts of the Little Missouri Valley which are well filled with cottonwood groves. One was observed to sing while flying, a song much resembling that of the West- ern Mockingbird. LIST OF THE BIRDS SEEN 83 Indigo Bunting (Passcrina cyanea). One seen in the Slim Buttes early in June — probably a wanderer. Lazuli Bunting (Passerina ainoena). A rare breeder in the forested buttes. Lark Bunting (Calamospiza melcmocorys). One of the most numerous summer residents of the plain. Most of the males have moulted by August first, when migration is under way. However, a mother was observed to feed a fledgeling as late as August 31. The Lark Bunting is commonly known as the "White- winged Blackbird" which name is chiefly objectional because this bird belongs to the finch, sparrow, or bunting family, and is therefore not a blackbird. In fact only the male can ever be called black and he wears his sable robes during but three or four months. During the rest of the year he re- sembles the greyish brown female. He is a delightful songster. He flies to a height of a few rods and then flutters slowly down to earth singing a stimu- lating lay throughout. During the nesting season I have observed no tendency to flock, but afterwards when the immature are able to fly they gather sometimes in immense flocks and sit around on the fences and weeds "as if they had nothing to do." \Yestern Tanager (Piranga ludoviciana) . An abundant breeder in the Short Pines in June, 1911. Cliff Swallow (Petrochclidon lunifrons lunifrons). Abundant nester on the cliffs of badlands and along streams wherever such cliffs occur. The only swallow seen frequently. Barn Swallow (Hinindo crytJirogastra). A pair or two nest about the sheds of each of the old ranches, and in Camp Crook. They do not wander far from their nests. The Barn Swallow is perhaps our best known swallow, though we have several others which are very abundant in many localities. Our other kinds are all colony builders, but the Barn Swallow generally nests a pair or two to a barn. It builds an open mud nest. The Eve or Cliff Swallow makes a covered mud nest ; the Bank and Rough-winged burrow into banks, while the Tree Swallow nests in trees and the Violet green in crevices in cliffs and the Martin in bird boxes. 84 THE BIOLOGY OF HARDING COUNTY Though we wonder about the strange and varied nesting instincts of the swallows, their most wonderful trait is their remarkable powers of flight. They circle about with such rapidity as to almost defy efforts to continually follow with the eye their movements. "No bird is better loved by the average country dweller. With absolutely no bad habits, believed to subsist entirely upon winged insects (mosquitoes, flies, etc.) and always graceful, beautiful and musical, this bird has few rivals in the affections of the real nature lover." Bank Swallow (Riparia riparia). One small colony is established on the North Fork of the Grand River. Bohemian Waxwing (Bombycilla garrula). A large flock is re- ported to have spent several days in the Short Pine Hills during February, 1910, and to have been conspicuous through- out the winter of 1910-11. Cedar Waxwing (Bombycilla cedrorum), A common summer resident in the pine-forested parts of the buttes. White-rumped Shrike (Lanins ludovicianils excubitorides) . Abund- ant summer resident of the plains". Nests in the scattered trees which occur along the intermittent creeks. The Shrike is a peculiar bird. Though it is far less abundant in numbers than many other of our birds it is noticed very frequently because of certain of its traits. It spends much of the day sitting on telephone and fence wires where the big head and tail are held in odd positions. When persons pass along the road the shrike flies slowly by rapid beating of small wings, off on a level until near the next landing place when it swoops almost to the ground and as it alights it sails nearly vertically. This position is very fa- vorable for the display of its distinctive color pattern — sug- gesting a crazy quilt of black and white. This shrike, often called summer butcher-bird, is con- sidered decidedly beneficial. The greater part of its food consists of large insects of which it cometimes kills more than it eats, leaving the rest empaled on the barbs of fences. Mice are frequently eaten. Our shrikes nest about tree claims and other clumps of trees. The nest is a bulky affair of small twigs. LIST OF THE BIRDS SEEN 85 Red-eyed Vireo (Vireo oliiaceus). Not a rare nester in the wooded canyons of Slim Buttes. \Yestern Warbling Vireo (Vvreosylva gilva sivainsoni). Common during the summer in the woody areas. Yellow Warbler (Dendroica aestiva). Nests commonly in the canyons along the brooks of the buttes, and along the Littk: Missouri. The Yellow Warbler or yellowbird is often called "The Wild Canary" because it resembles the canary. The black and yellow goldfinch, however, might more correctly be so named since it belongs to the canary or sparrow family. The yellow bird is our most common warbler and because it nests abund- antly in willow thickets, small groves and orchards it is quite frequently seen. As it flits about it distinctly suggests a flash of golden sunlight. Its simple song has a pleasing happy ring and a surprising penetration. The food of warb- lers consists very largely of insects. The Yellow Warbler arrives from the tropics during the first week in May and departs early in August. The nest is built very soon and is commonly placed in some low bush or shrub, often a rose bush. It usually is made largely of light- colored flaxen materials gathered from various weed stalks and is often lined with the cotton from the seeds of willow and cottonwood. The Yellow Warbler is constantly victimized by the Cow- bird, which you know is too lazy to rear its own young. Where this parasite is abundant many deserted nests are found containing from two to four eggs of the Cowbird with or without some of the warblers' own. This clever warbler sometimes covers a cowbird's eggs with a new layer of material, and I have found two nests where a second "false bottom" had been added to cover additional eggs of the intruder, resulting in a three storied nest. Audubon's Warbler (Dendroica audiiboni}. N.ests in the pine forests of the higher buttes ; fairly common. Ovenbird (Seiurus aurocapillus). Nests in the Short Pine Hills. Fledglings seen in the Long Pines. Grinnell's Water-Thrush (Seiurus noveboracensis notabilis). Three seen along the river early in September. 86 THE BIOLOGY OF HARDING COUNTY Western Yellow-throat (Gcothlypis trichas occidentals). Breeds commonly along the permanent streams. Long-tailed Chat (Icteria inrens longicauda) . Nested abundantly in the most wooded portions of the Little Missouri floodplain. Wilson's Warbler (Wilsonia pnsilla). An abundant migrant, ar- riving August 19. Redstart (Selophaga ruticilla). Several pairs nested in the Slim Buttes in 1911. Common along the Little Missouri River in September, 1912. Sprague's Pipit (Anthus spraguei). Common breeder on the grassy plains of the northeastern part D£ the country. Abund- ant migrant. The call, che,che, is then frequently heard. Western Mockingbird (Miuiits polvglottos Icucoptcrns) An in- dividual was closely observed by W. H. Over of Date near Rabbit Butte, Perkins County, on August 12, 1912. Mr. Over is familiar with this species and I do not doubt the accuracy of the record which extends its range from the southern Black Hills. Catbird (Dnmctella carolinensis). Not common during the sum- mer, in the groves along the streams. Brown Thrasher (Toxostoma rufnui). More numerous than the preceding, in similar situations. Rock Wren (Salpinctes obsoletus}. Breeds abundantly wherever steppe slopes with crevices occur. Hence especially noticeable in badlands and on the cliffs of the steep-sided buttes. Western House Wren (Troglodytes aedcn parkmani). Nests abundantly in the more wooded portions of the Little Mis- souri Valley and in the pine forests of the high buttes. The House wren is as energetic a little bird as you could want. They are all the time on the go. They sing with all their might. Their notes fairly tumble over each other, they are poured out so fast. At times the little musicians become so ecstatic that they raise their quivering wings high over their backs. The food of the wren is almost entirely insects. "Half of the food consists of grasshoppers and beetles and the other half is made up of almost equal quantities of cater- pillars, bugs, and spiders." A LIST OF THE MAMMALS 87 Rocky Mountain Nuthatch (Sitta carolinensis nelsoni). Seen November 8 in the East Short Pines, by Saunders. Red-bellied Nuthatch (Sitta canadensis). A common resident in the pines of the buttes. Long-tailed Chickadee (Penthestes articapillus septentrionalis) . Breeds abundantly in the forests of the buttes. Common later in the woods elsewhere. Olive-backed Thrush (Hylocichla ustulata swainsoni). Frequent migrant. Taken in September, 1912, near Camp Crook. Willow Thrush (Hylocichla fuscescens salicicola). Not uncom- mon along the Little Missouri, August 27-September 3. Robin (Planesticus migratorius migratorius). Seen seyeral times in August, 1910. Western Robin (Planesticus migratorius propinquis). Nested quite plentifully in the Short Pines in 1911. The two vari- eites of robins differ most noticeably in regard to white on the tail. The eastern robin has some, and the western has none. Bluebird (Sialia sialis). Common breeder in the pines of the higher buttes. Mountain Bluebird (Sialia cnrnicoides). A brood was seen in the Short Pine Hills. Grinnell also reports seeing a brood of young there in 1874. V. A PRELIMINARY LIST OF MAMMALS OF HARDING COUNTY. Compiled by S. S. Visher. [Elk (Cer-cus canadensis). Formerly were doubtless abund- ant. The last were killed in 1879 when a large crew cut trees for the N. P. R. R. in the Long Pines. We found two skulls in the Cave Hills, one of which was well preserved. Some of the older settlers have fine antlers.] Western \\~hitetailed Deer (Odocoileus virginicmus macron- rus). Until quite recently this deer was fairly plentiful in the forest reserves. In 1910 we saw deer or certain evidences in each. During the winter of 1910 over thirty were killed in Slim Buttes. It is believed that thev are now nearlv exterminated. 88 THE BIOLOGY OF HARDING COUNTY [Blackballed Mule Deer (Odocoileus Jieinionus hemionus). Blacktails were formerly found in the brakes along the Little Missouri and near the "Jump Off" north of the East Short Pines. They were exterminated by 1900.] [Big horn Sheep (Ovis montamts). " Sheep Mountain," a large butte at the end of Slim Butte is reported to have been until the go's the home of the mountain sheep. The older set- tlers state that in the 8o's they were found on each of the buttes. Pronghorned Antelope (Antilocapra ornericana). Antelope were until about 1900 very plentiful in this region. In 1910 we saw four or five bunches. A cowboy who rode about a good deal estimated that there were over 500 in the county that sum- mer. In spite of a fine and a year's imprisonment for killing this beautiful animal they are rapidly disappearing. Although I visited the most likely portions of the county in 1912 I saw none, though I learned that there is still a small bunch in a large pasture a short distance north of Camp Crook. [Buffalo (Bison bison). In 1874 the Custer expedition in crossing this area saw no buffalo. An old settler reports seeing a small bunch in 1886. Judging from the large number of skulls with bullet holes through them, the* "market shooters" who killed the buffalo solely for the hide must have 'slaughtered many here. Northeast of the north Cave Hills and west of the South Cave Hills we came across groups of numerous skeletons. In one place more than 13 must have been killed within a few rods of each other.] Dakota Red Squirrel (Schirns hndsonicus dakotonsis). I col- lected a red squirrel in the Long Pines in July, 1910. They are reported to have been seen in the West Short Pines also. \Yestern Chipmunk (Eutamias quadrkitatus borcalis}.* Quite abundant in badlands and about streams near scattered trees. Striped Gopher (Citcllus trideciiiiluicatus pallid us). \Yith the coming of the homesteader gophers are increasing in numbers though they are far from plentiful. They are smaller as well as paler than the common eastern form. Richardson Ground-squirrel (Citcllus richardsoni) . This northern gray gopher or "flicker-tail" war, seen only in the ex- *A specimen of chipmunk from near the mouth of the Moreau river has been identified by the Biological Survey as Eutamia.s pallidus. South Dakota Geological Survey. Plate G Beaver Dam on Rabbit Creek. A LIST OF THE MAMMALS 89 treme northwestern corner of the country. It supplements the striped gopher in much of North Dakota. [Gray Gopher (Citellns Franklini). One was seen in ex- treme eastern Perkins County. \Yith the settlement of the region it will probably extend its range westward into Harding County.] Prairie-dog (Cynomys ludovicianus) . Very large towns oc- cur. One covering several sections was driven across west of the Little Missouri river. Most of the towns are along the "flats" of the streams. There is a small one, however, on the table of the West Short Pine Halls. Pack Rat (Xcotoina cinerea). Quite plentiful and general, several killed. (One from the mouth of the Moreau River was determined by the Biological Survey). Beaver (Castor canadensis canadensis). Beaver occur in various sections of this area. Freshly gnawed trees were seen along the Little Missouri and its chief tributary, Boxelder Creek, and along the forks of the Grand River. Numerous recent dams were found in 1910 along Bull Creek between the north and south Cave Hills and in 'The Devil's Gulch" in the North Cave Hills. Common House Mouse (Mils musculus). Not yet common. Most of the mice about the houses come in from the prairies. [Large Grasshopper Mouse (Omychomys leucogaster leuco- gastci'). Doubtless common on the grasslands.] \Yhitefooted or Deer Mouse (Peromyscus uianiculatus nebras- censisY Plentiful in the open groves along the Little Missouri and elsewhere. ~\Ye trapped three in one trap in one night. This mouse is one which enters the homesteader's cabins. (A speci- men from Pierre has been determined by the Biological Survey). Large Meadow Mouse (Microtus pennsylvanicus inodestits). The common short-tailed mouse. [Small Meadow Mouse or Little Vole (Microtus haydcui). Also doubtless abundant.] Muskrat (Tiber ziberthicns cinnanwninus) . Fairly plentiful along the streams having deep permanent "holes." (A specimen of this variety taken at the mouth of the Moreau River has been identified by the Biological Survey). Pocket-gopher (Thomomys talpoidcs talpoidcs}. Pocket- gopher mounds are quite frequent especially on some butte sides. 90 THE BIOLOGY OF HARDING COUNTY Prairie Jumping-mouse (Zapus hudsonius campestris). Kan- garoo mice or "rats" have been taken by Mr. Over in Perkins County. Porcupine (Erethizon epiranthum epi.vanthum) . We ran on to several porcupines and signs of their work as barkers of young pine trees were plentiful in the forest reserves. Jack-rabbit or Prairie Hare (Lepus campestris). Fairly com- mon in this area. Western Cottontail (Lepus nuttalli). Quite plentiful in the groves. [Canada Lynx (Lyn.v canadcnsis cental ensis). George Craig and others claim that specimens of this lynx have been taken recently in the Cave Hills.] Bobcat (Lyn.v nifus). Plentiful in the badlands and enter- ing the buttes where our party saw one in 1910. Kit Fox or Swift (I'nlpes I'do.v I'do.r). While the- Swift is so rare here that a rancher has hunted with hounds for years without ever seeing one, it nevertheless undoubtedly occurs. We saw one along the Little Missouri Valley in North Dakota. Catron reports having trapped a few. Prairie Red Fo>x (I'nlpes regalis). Catron reports having trapped two or three red foxes in this county. Another reports them not rare about the Long Pines. Gray or Buffalo Wolf (Canis occid entails occidentalism . Quite plentiful. As an indication of its abundance I may quote figures given me in 1910 by Assistant Forest Supervisor Haines : A gov- ernment trapper caught 5 adult and 25 pups in two months about the Short Pines and 2 adults and u pups about the Cave Hills in two months. Coyote (Cams latrans nebracensis] . Generally considered as abundant. However, in 1912, I traveled very widely throughout this area and saw but one though in 1910 and 1911 I saw several. Haines gave me the following data concerning the number taken by government trapper in the Short Pines in two months : 34, in the Cave Hills, 2 months, 22. These were the same periods during which the gray wolves were trapped and scarcely indicate the relative abundance of the two because of the greater bounty on the Gray. The same trapper took 102 coyotes and but 4 wolves in a whole winter (1909-10) in the Ekalaha Forest. A LIST OF THE MAMMALS 91 Otter (Lfiitra canadensis canadensis). This wide roving animal has been recently trapped along the Little Missouri River. Long-tailed Weasel (Pntorius longicanda longicanda). The weasel, which during winter when it is white is called the ermine, is quite common here. During the summer of 1910 we saw 4 or 5 dead ones along the roads. Mink (Putorins vis on vision). The mink is not common. Some trappers report never having caught one, but they occur. My friend, Alvin Mentzer, trapped one on Bull Creek in Feb., 1911. Skunk (Mephitis (Chincha) hndsonica). This large skunk is uncommon in this area. Little Skunk (Spilogale intcrntpta). The "spotted skunk" or "civet cat" is much more common than the large skunk. Badger (Ta.ridca ta.vns ta.nts). Quite common. Raccoon (Procyon lotor lotor). I know of the killing of two raccoons in Perkins County. Puma (Felis concolor). A puma or mountain lion visited the East Short Pines in the winter of 191011. It was doubtless a roamer from the larger Long Pines or Ekalaka Forests. [Grizzly (Ursiis Jwrribilis horribilis). In the early go's a grizzly was killed a short distance southwest of Camp Crook. Years before they were doubtless fairly plentiful in this area.] [Black bear (Ursus americanus americanus). It is reported that a black bear was seen near the Cave Hills in July, 1910. Bears have been recently killed in the Long Pine and Ekalaka forests, but their day of extermination is here near at hand.] [Shrew (Sore.r personatus personatus). Though we have no specimen of the shrews from this county the species certainly is present.] Little Brown Bat (Myotis lucifugiis lucifugiis). Abundant about the groves along the Little Missouri and in the forest reserves. (Determined by the Biological Survey). [Say Bat (Myotis subulatus). Some of the little brown bats we saw may have been of this species.] [Silver haired Bat (Lasionyctcris noctivagaus). This small black bat was probably seen in the canyons of the Cave Hills.] 92 THE BIOLOGY OF HARDING COUNTY Large-eared Bat ( Corynorhinu s macrotis pallescens Miller). Several made Ludlow Cave their home in early September, 1912. One was sent to the biological survey for determination. Hoary Bat (Mycteris (Lasiiirus) cinereus). This very large bat is doubtless a migrant to this area. I saw an individual, I be- lieve, of this species late in August, in a plum thicket (a speci- men taken in July at the mouth of the Moreau River has been determined by the Biological Survey.) VI. A PRELIMINARY LIST OF THE REPTILES AND AMPHIBIANS OF HARDING COUNTY. By S. S. Visher. Prairie Rattle Snake (Crotahis confluentus). After ques- tioning many persons we concluded that where several rattles are killed in a year on a quarter section rattlers are considered to be "very abundant." One may drive or ride a couple hundred miles without seeing one. Mr. Over reports an interesting case of abundance. In the summer of 1912 he saw not a one until early in August ; nor another until October first. During the first two weeks of October he killed 27 in a very limited locality. Bull Snake (Pityophis catenlfer sayi)* The "yellow gopher" snake is the most abundant of the snakes, except along some of the streams where the garter snake is more plentiful. Blue Racer (Bascanion constrictor flaziventris) . Occasional on the plains. Western Hog-nosed Adder (Heterodon nasicus). Fairly fre- quent on the sandy portions of the floodplains. Garter Snake. (Thamnophis sirtctlis}. The most abundant snake ; along all streams. Horned Lizard (Phrynosoma douglassii hcrniandesi) . Horned "Toads" are according to my experience quite common in this general area, though large sections seem to be without them. I have found them chiefly in the rougher portions of the steppe — about such buttes as Wage Pole butte and on the borders of badlands. Mud Turtle or Terrapin (Malococlemnys geographica). Plentiful in streams. *Specimens of these varieties were determined by Dr. Alx. Ruthven of the U. of Michigan Museum. LISTS OF THE ANIMALS COLLECTED 93 Snapping Turtle (Chclydra serpentina). Fairly frequent in water holes. Common Toad (Bufo amcricanus). Quite plentiful especially around buildings. Great Plains Toad (Bnfo co gnat us). This "leopard" toad was met with twice, once just west of the North Cave Hills and the other time near the Slim Buttes. This apparently establishes a new northern limit to its range. Tree Frog (Acris gryllus). I captured an individual of this species near the dump-pond in the East Short Pine Hills. [Spade-foot Toad (Scaphiopus hammondii bombifrons). This toad ought to be found in this county, though we did not suc- ceed in finding it. It comes out only after heavy rains and such were very rare in 1910, 1911, which may account for not seeing any.] Common Leopard Frog (Rana pipieiis). Green frogs are most plentiful along the springs in the buttes, but are locally abundant elsewhere. We had several meals on them. Mud Puppy (Xocturus inaculosna). Mud Puppies believed to be of this species were seen several times. They are quite common about cellars, etc. VII. A PARTIAL LIST OF THE INSECTS COLLECTED IN HARDING COUNTY. Orthoptera (Grasshoppers) (Named by Prof. L. P. Morse, Ph. D., Wellesley College.) Sparogemon. Barren Ground Locust. Melanophus. Two striped Locust. Asphia. Opeia Dactylotum pictum. Brilliant Locust. Brachystola magna. Giant Grasshopper. Cole opt era (Beetles) (Named by Wm. M. Mann. Bussey Institution, Harvard Uni- versity.) Agonoderus pallipes. 94 THE BIOLOGY OF HARDING COUN1Y Amara sp. (New?) Caligrapha lunata. Cincindela longilabrus var montana. Tiger Beetle. Cincindela punctulata. Tiger Beetle. Dicerca elongata. Disonycha triangularis Galerucella notulata. Hiistera abbreviatns. Lebia furcata. Pachybrachus bivittatus. Saprinus lugens. Trirhabda canadensis. Hymenoptera (Named by Wm. Mann.) Agatheis. Philanthus. Lepidoptera ( Butterflies ) (Collected and named by B. B. Rowley.*) Argynnis adwardsi. Dnoisa pluxippus. Agynia electa. Erynnis uncas. Argynnis idalea. Euptoieta claudias. Argynnis meadi. Hispiris montivaga. Argynnis nevadensi. Lycaena comyntus. Apatela quadrata. Lycaena lycia. Autographa sp. Lycaena melissa. Basilarchia weidemeyeri. Lyneda divergens. Chrysophanus rubidus. Phycoides phaon. Coelnonympha inornata. Primba sp. Colias scudderi. Pyramus atalanta. Oolias philodin. Satyris baroni. Cymatophora ribcaria. Scoliopteryx lilatrix. Drasteria crassiuscula. Thanaos martialis. *Rowley's collection together with additional specimens collected by Visher were submitted to specialists in 1912, but no returns have been received. However, it is believed that the determinations are fairly correct and hence this provisional list is published. LIST OF THE SNAILS COLLECTED 95 VIII. LIST OF MOLLUSCA OF HARDING AND PERKINS COUNTIES.* Collected by Win. H. Over and Determined by Dr. H. A. Pilsbry of Academy of Natural Sciences, Philadelphia, Pa. Lymnaea bulimoides cockerelli Pils & Fer. Common in water- holes. Lymnaea palustris Mull. The most common freshwater shell in state. Lymnaea Caperata Say. In waterholes, not abundant. Lymnaea bullimoides var. techella Hald. Near Camp Crook. Lymnaea humilis var. modicella Say. Spring-holes in East Short Pine Hills. Lampsilis luteolus Lamk. Rare, only one specimen collected in Little Missouri river at Camp Crook. Anodonta grandis Say. Several seen in North Grand river, near Grand River, P. O. Physa sayi Tapp. Springholes in West Short Pine Hills. Physa gyrina Say. Near Antelope Creek. Physa integra Hald. Little Missouri river north of Camp Crook Planorbis exacuos Say. Antelope creek, Perkins county. Planorbis deflectus Say. Antelope creek, Perkins county. Planorbis trivolvis Say. Waterholes 7 miles north of Camp Crook. Planorbis tinidus Pfr. Antelope creek. Planorbis umbilicatellus C'k'll. Waterholes near Rabbit Butte. Euconulns fulvus Mull. Damp shady places in Slim Buttes. Succinea avara Say. Floodplain Little Missouri River at Camp Crook. Succinea grosvenorii Lea. Collected from under sagebrush and cacti. The most abundant land shell in the plains country. Pisidinm contortum Ptime. Springs in Slim Buttes. Musculium jayense Prime. Waterholes near Sorum. Sphaerium striatum var. acuminatum Prime. Little Missouri River. Vallonia gracilicosta Reinh. Camp Crook and West Short Pine Hills. *As Perkirvs County joins Harding- on the east and the topography is nearly identical, it is probable that all specimens listed from Perkins could be found in Harding County. 96 THE BIOLOGY OF HARDING COUNTY Agriolimax campestris Binn. Slim Buttes. Bifidaria armifera Say. Wooded ravines in Slim Buttes. Bifidaria armifera agna P. & V. Wooded ravines near Antelope Creek. Bifideria armifera var. abbreviata Str. Shady places in Slim Buttes. Zonitoides arboreus Say. Wooded ravines in Slim Buttes. Pyramidula cronkhite var. anthonyi Pils. Collected in moist shady places in Slim Buttes, West Short Pine Hills and at Camp Crook. IX. NOTES ON ANIMALS AND PLANTS OF ECONOMIC IMPORTANCE. BY S. S. VISHER. i. ANIMALS OF PREY. (a). The gray wolf is moderately plentiful, and because of the proximity of rough lands will probably continue to give some trouble to horse and cattle raisers for some years to come. (b) Coyotes are plentiful. However, fences that are coyote proof are not difficult to make. (c) Weasels and skunks are especially feared by poultry rais- ers. Since their activities are limited to the hours of darkness, precautions can easily be taken against their entrance. (d) Hawks and owls are, with a couple of exceptions, very great allies of the farmer, because they live on gophers and rabbits. Consequently, they ought by all means be permitted to live. The only owl which is destructive to poultry is the very large Horned Owl which is occasionally seen in this area. The Sharp-shinned Hawk, a rather small, swift-flying hawk, is the only one found at all regularly here, which merits destruction. Persons who discriminately shoot every hawk or owl that they can get at are extravagant to say the least. (e) All the snakes are useful. The only one that has any serious faults is the rattler. Even they do much good, and ex- ceedingly rarely do any damage. However, they are rapidly ap- proaching extinction. THE EXTERMINATION OF THE PRAIRIE DOG 97 2. GREGARIOUS OR VERY ABUNDANT ANIMALS. (a) The prairie dog is 'locally abundant. The poisoning of these pests is comparatively such a simple task that no one need have a town near his land unless he is too lazy to get rid of it. Large towns have been entirely destroyed by one application of poisoned food done properly and at the right time. The poisons found most satisfactory, and recommended by the Biological Survey of the Department of Agriculture are (i) Sulphate of strychnine. Care should be taken to secure strych- nine sulphate since the strichnine usually sold by druggists is in- soluble in water. One and one-half ounces of strychnine sulphate to a bushel of grain is sufficient. The strychnine should be ;ved in 2 1-2 gallons of water by heating in a covered re- ceptacle. After thoroughly dissolved, add the grain and allow to stand over night. The grain will absorb the liquid. In dis- tributing the grain, one-half teaspoon full should be put just outside of each hole, and had better be distributed during the evening hours. (2) One ounce of strichnine sulphate dissolved in one gal- lon of water mixed with green alfalfa or green, growing grain cut in lengths of 2 to 4 inches and distributed in the evening so that it may be eaten before it is dried by the sun, is usually en- tirely successful. (3) Crude bisulphide of carbon suitable for killing burrow- ing animals costs about 8 cents per pound in 50 pound carboys or drums. It is a volatile liquid and hen.ce should be kept tightly corked. It is highly explosive. A tablespoonful of crude bisul- phide should be poured in a piece of dried horse manure, corncob or other absorptive material and this should be thrown as far as possible down a burrow into which a prairie dog has just disap- peared. The burrow should be immediately closed. Bisulphide can be used to best advantage after a heavy rain. It should be clearly understood that the method recommended by the government consists of two steps — (i) to destroy the great bulk of the inhabitants of the colony by poisoning with strychnine in \vinter or early spring when food is scarce; (2) to kill the re- maining animals with bisulphide of carbon. In this way it is be- lieved that colonies of any size may be wiped out at a total cost of not to exceed 16 or 17 cents per acre, probably less. Sig.— 7. 98 THE BIOLOGY OF HARDING COUNTY (b) Gophers. The carbon bisulphide method of killing prairie dogs can 'be applied to gophers. Trapping and digging - out as well as shooting is very much more simple with gophers than with prairie dogs, and is usually sufficient. (c) Rabbits are chiefly destructive to young fruit trees and gardens. We heartily recommend that anyone setting out an orchard or garden to first have it fenced with a rabbit-proof fence. (d) Wild Mice are caught in baited traps even more easily than the house mouse. Of course, the best way to keep down the mice in the fields and meadows is to allow hawks, owls and snakes to be unmolested. (e) Blackbirds, crows, magpies, and jays are all highly use- ful during the most of the year. Occasionally they are trouble- some for short periods. At such times it is recommended that they be frightened away rather than killed. (f) Grasshoppers are abundant but ordinarily not destruc- tive. It is occasionally worth while to soak binding twine in tar. (g) Striped potato beetles can usually be controlled by proper application of Paris Green. Since the few individuals which winter are the ones which multiply sufficiently to cause the trouble, it is good economy to go over the patch shortly after the potatoes are up and to kill these adults before they have laid eggs. If clumps of yellow eggs are observed on the lower side of the leaves they ought to be destroyed. During a hot day this can be most delicately done by picking off that portion of the leaf and allowing it to dry up. The bur-tomato, or buffalo-bur thistle (Solanum rostra-turn) is frequent in this -area, especially on deserted ground. This plant is fed upon by the potato beetle, which by its means can exist long distances from potato fields. Since these plants are easily killed, the wide awake farmer, and the one who endeavors to save himself future work will cut down all avail- able plants of this species. This plant, by the way, is the original food plant of the potato beetle (Leptinotarsa decinlincata) . Un- til the cultivated potatoes were introduced into its range, this beetle was found only occasionally, as we found it, on the scat- tered Solatium rostratum,. 3. PARTICULALY USEFUL ANIMALS. (a) Insectivors \ All birds feed their nestlings upon insects, worms or other soft animal food. Most birds subsist almost to- USEFUL ANIMALS 91 tally upon insect life during the summer months. Almost all birds in summer time, especially the so-calied song birds are use- ful and many are so highly useful as to be almost invaluable. Every farmer can well afford to put himself out to encourage the birds. In many treeless localities a clump of trees or a plum thicket would attract them. It is an excellent plan to place water in such a position as to be accessible for drinks. Cats which are not valuable "mousers" ought by all means to be destroyed. (b) Carnk-ors: Coyotes, hawks and other animals of prey are valuable as destroyers of rodents such as rabbits, mice and gophers. In regions where there are no sheep, and where reason- able precautions are taken with the poultry, even coyotes are use- ful animals. (c) Seed eaters: Many of the birds subsist chiefly on seed, except during the summer months. All kinds of seed is eaten, but since the most available ones are usually seeds of weeds the birds are very effective weed destroyers. The flock of sparrows, usually of several species, flushed from the weed patches in fall and spring are doing a good work for the farmer and should be appreciated. (d) As sources of food. Rabbits are always good food though without a doubt, young rabbits and those not having ''grubs" are most attractive. Ducks, geese and snipe are all ex- cellent food. It is indeed a short sighted person, that kills these birds in the spring after breeding is under way. Grouse and bobwhites or quail present first class flesh. They however are exceedingly valuable as destroyers of grasshoppers. Let anyone who maintains that these birds eat much grain before it is har- vested, examine the crops of such as are available. Since these birds have practically no bad faults, and have such excellent qualities, as sources of food and as destroyers of insects, it would indeed be a pity to have them exterminated. 4. XATIVE PLANTS AS INDICATORS OF AGRICULTURAL POSSIBILITIES. "Land which bears a pure short-grass cover was found to be supplied with water in the surface foot or two of soil only, and usually even to that depth for but a brief period during spring and early summer. Land with a uniform cover of tall grasses was found to be supplied with water to a much greater depth and to offer conditions favorable for plant growth during a much longer 100 THE BIOLOGY OF HARDING COUNTY season. As a connecting link between these two conditions a short grass cover which supports a scattered growth of taller plants was found to indicate intermediate conditions as regards water supply. "The area of greatest agricultural value one year with another are those marked by the presence of the wire-grass vegetation. Of almost equal value are the areas characterized by those phases of the grama-buffalo-grass vegetation which are distinguished by the presence of a considerable quantity of Pso-ralea or of wire- grass. Bunch grass land is best for crops during especially dry years, but is relatively the least productive during favorable years. Typical short-grass land (grama-buffalo-grass association) pro>- duces more than any other type during wet years, but is first to fail in time of drought." (From Bulletin No. 201 Bureau of Plant Industry U. S. D>ept. Agri. 1911.) 5. POISONOUS PLANTS. (a) Locozveed. This is a low, stemless plant having a few pinnate leaves and a clump of small, white flowers which re- sembles those of beans. The seeds are borne in capsules which rattle when dry. Stock which get the habit of eating this plant finally gets "locoed." Horses are especially susceptible, partic- ularly young horses. The loco leaves are green after the grass has turned dry, and also early in spring. It is eaten more or less by all live stock. It is dangerous only when an animals gets the habit of making it the main article of its diet. This most frequently takes place when the supply of grass is short. Symptoms. Two stages are recognized. The first, which may last several months or longer is accompanied by defective eye- sight and many queer actions. After acquiring a taste for the. plant it refuses every other kind of food and the second stage, characterized by sunken eyeballs, lusterless hair and feeble move- ments, is ushered in. The animals die from starvation in periods ranging from a few months to one or two years. Treatment of locoed animals. Animals in the earlier stages can be cured by depriving them of opportunities of obtaining loco, and feeding them" on nutritious food. Probably nothing is bet- ter for locoed horses and cattle than turning them, under proper conditions, into a field of alfalfa. Locoed animals are constipated. POISONOUS PLANTS ' tiff. If alfalfa or alfalfa and oil meal are not effective in overcom- ing this, Epsom salts may be given (mature cattle does — I pound; calves, 2 oz. ; horses, 8 oz. ; sheep, 4 oz.) Animals chronically locoed in addition need a remedy to overcome nervousness. For horses arsenic in the form of Fowler's solution (4-6 drams) given in the grain or drinking water is effective after a considerable time, usually more than a month. Cattle respond best to hypoder- mic injections of exceedingly small daily doses (3 to 4 twentieths of a grain) of strychnine. Locoed cattle are easily killed by doses which would be considered small in ordinary veterinary prac- tice. It is usually necessary to treat cattle for thirty days or more.* On the principle that an ounce of prevention is worth a pound of cure, careful stock men will keep their stock out of pastures badly infected with loco until the grass has -started well in the spring, and at other times when the grass is short. It is not a dif- ficult plant to kill the loco plants — chopping them off just below the ground is sufficient. (b) Poison ivy. This low, three-leaved shrub is found in the woods and upon north-facing hill sides and about the buttes. The leaves resemble those of the boxelder. The poisoning is caused by a non-volatile oil and is not spread by the blood. It causes swellings, itchings, and finally, in bad cases, running sores. The oil is readily dissolved and can be washed off by 50-75 per cent, alcohol. If all the sugar of lead (Lead acetate) which will be readily dissolved be added to weak alcohol a cure can be secured as a result of several applications a day for a few days. Appli- cations of castile soap are beneficial. (c) Snoiw-on-the-mountain. (Euphorbia). Honey made from the flowers of this plant is hot and disagreeable to the taste and causes vomiting and purging. The milky juice of this plant may cause skin eruptions similiar to those produced by poison ivy. This blistering is, in fact so decided that a few stock raisers in Texas use the juice to brand cattle, it being held by them to be superior to red-hot iron for that purpose, because the scar heals more satisfactorily.** *These notes on the treatment of locoed stock are taken from Far- mers Bulletin 380 U. S. Department of Agriculture. **According to Farmers Bulletin 86. 102 THE BIOLOGY OF HARDING COUNTY 6. PLANTS USED IN MEDICINE. Quite a variety of plants which are used in medicine and for which, under proper conditions, have a market value, occur in this county. For directions concerning collecting, as well as description, price, etc., see Farmer's Bulletin 188 U. S. Dept. of Agriculture which can be secured free of charge through your Congressman or Senator. A list of the plants treated in this bulletin which are found somewhat commonly in these counties are as follows : Tansy (Tanacetum mlgdre). Gum plant (Grindclia sqitarrosa). Yarrow (Achillea uriltifoliitm). Fleabane (Eriogerou [Lcptilon] canadcnsis). Wormseed (Chcnopodinm anibrosioides, etc.). Mustard (Brassica nigra and Sinapis alba). At least two other species not mentioned in Farmer's Bul- letin 1 88, of considerable medical importance are locally common in this area. Oregon grape (Bcrberis aquifoliuin). (Rhizons and roots). Slippery elm (Ulnus fulra). (Inner bark). 7. PLANTS AS SOURCES OE FOOD. The chief wild fruits are ( I ) the plum found in thickets along- all wooded valleys (2) chokccherry found with the plum (3) sand- cherry, occasional on buttes, etc. (4) buffalo-berry found in thickets along streams, especially in the badlands. (5) wild goose- berry and currants along the flood plains and in the woods. (6) The June or senice berry occurs scattering in brush especially in the forest reserves. Herbs used 'somewhat for food include the Indian Turnip (Psoraela), ground cherry (Physalis), and night shade (Solannm). 8. PLANTS AS SOURCES OF WOOD. With about 100,000 acres of Harding County included within national and state forest reserves, the natural assumption is that there is considerable timber of economic importance. Before the establishment of the federal reserves there had been saw mills in each of the forest buttes, and many of the larger trees were TREES^ AND WEEDS 103 then cut. Certain treeless areas apparently favorable for tree growth are doubtless the result of former extensive fires. At present there are encouraging young growth of pine (Pinus Scopulorum) upon most of the north facing slope in the forest reserves, and locally elsewhere in the reserves. Ash thickets have been of great value in furnishing fence posts. There is still a considerable supply in the Sioux Reserve. Red cedar is now quite rare in Harding County. The most extensive thickets we noted were in the Bad Lands just east of the East Short Pine Hills. Extensive cedar brakes occur in North Dakota along the Little Missouri River a few miles north of the state line. The remnant of what was formerly a very valuable supply of cedar timber is found in Cedar Canyon, etc., on the south side of the Moreau River a short distance southeast of our area. The only extensive groves of cottonwood in Harding county are found in the Little Missouri Valley in Camp Crook. 9. WEEDS. \Yeeds are not troublesome in Harding County. This is due mainly to the dryness. The common weeds require more water than is available. An additional fact is that as yet but few weeds have been introduced and established because of the newness of the region agriculturally. Fields almost perfectly free from weeds are frequent. SOUTH DAKOTA GEOLOGICAL SURVEY Biennial Report of the State Geologist for 1913-14 ELLWOOD CHAPPELL PERISHO University of South Dakota, Vermillion 1914 THE GEOLOGICAL SURVEY OF SOUTH DAKOTA REPORT OF THE STATE GEOLOGIST ELLWOOD CHAPPELL PERISHO, University of South Dakota, Vermillion, 1914. The work of the State Survey is of vital interest to the people of South Dakota. This interest is both educational and economic. Few fields of endeavor furnish such returns to the people for so small an expenditure of money. The Survey has been active the last two years along the following lines of work : I. General Information. A large number of inquiries from the citizens of the state concerning mineral specimens, clays, soils, climatic conditions, artesian and common \vells, plants, birds, coal, oil, etc., are being constantly received and answered. All this is without charge and hence must be a saving of no small amount to our citizens. All the people of the state are urged to make use of the Survey by sending in specimens of minerals, clays, birds, plants, and mammals for indemnification or other information desired. II. The State Museum: For years the State Geologist has been anxious to see the collections made by the Survey put into a more permanent and accessible form. The importance of having a State Museum in which the type forms of life, especially those found in our state, are properly classified, labelled, mounted, and systematically arranged, is so self-evident that it needs no argu- ment. Such a collection of the representative forms of life would prove to be of great value as an educational factor. There is certainly no one in the state who would not only endorse this idea but be glad to aid in its accomplishment. The Survey was exceptionally fortunate in securing the services of William H. Over who has devoted much time the past year in assisting the Department of Geology of the University and the Survey in col- lecting, classifying and arranging specimens for the Museum. Aside from three or four months in the summer occupied in the field, his whole time was devoted to museum and laboratory work. 108 REPORT OP EiLLWOOD C. PERISHO, STATE GEOLOGIST Early in 1913, work was started on the mounting and labelling of the large collection of the type botanical specimens of our state, mostly collected by S. S. Visher under the direction of the Survey. This was accomplished and a metallic case was purchased and placed in the Museum to contain the plant collections. This gives the state an exceptionally valuable herbarium so arranged that it may be used as a work of reference by all who are interested in botany or the plants of the state. The collection is especially rich in the flora of the Black Hills, Forest Reserves, western plains and many other localities of the state. We yet need to make extensive collections of the early spring flowers in a number of counties before the herbarium reaches its maximum of completion and usefulness. Another valuable addition to the Museum in the spring of 1913 is a large case of old Indian stone, flint and bone articles, of 2,000 specimens, about 500 of which belong to the department and represent the implements of warfare, the chase, and ornamentation of the Arickaree Indians, who formerly lived on the Missouri River in South Dakota. The balance of the collection was loaned by William HI Over. It is valuable on account of representing the implements of prehistoric races of America, and is the largest and best collection of old flint and stone relics in South Dakota. A large case of land and freshwater Mollusks were also loaned by William H. Over and displayed to the public. There are nearly 1,000 species of shells in the collection, properly identified and labelled, representing the Mollusca from all parts of the world. One hundred and thirty species of Unionidae or clams of our rivers and lakes are shown in this case. In the display there is also a series showing the economic products of the clam shell as manufactured at the pearl button factories along the Mississippi river. A collection of one hundred twenty-five species of woods were received from the Philippines and properly displayed. In addition to a number of skins, forty-five mounted birds and seven mounted mammals including a black bear and a coyote have been added to the Museum during the year 1913. The taxi- dermy work was done by H. E. Lee of Rapid City and William H. Over. Many valuable specimens were presented by friends to the Museum during the year. Every one was properly labelled FIELD WORK DONE 109 with the donor's name. The Survey wishes to especially thank the following for donations or loans : Dr. Franklin Gault, Tacoma, Wash., Snowy Owl ; Roy C. Davis, Vermillion, bear, monkey, and fifteen mounted birds, loaned ; Roy C. Davis, Lamprey and Krie- der's Hawk, donated; Floyd Bond, -Custer, specimen of tremolite, loaned ; Professor A. L. Haines, Vermillion, fossil sponge, polished, donated ; E. D. Cowles, Vermillion, petrified wood, and screech owl, donated ; Carlton A. Haines, Vermillion, Bat, Garter Snake and Mole, donated ; W. J. Jones, Rolling Bay, Wash., section of pile from dock showing effects of ravages of ship worm; Maurice Chancy, Vermillion, Lamprey, donated ; Floyd Bond and O. R. Skola, Screech Owl, donated; Wm. H. Over, one hundred species of land and freshwater shells, donated ; Peter Lund, Vermillion, Long-eared owl, donated ; Wm. Bauman, Gophers and moles, donated ; Van Buren Perry, Aberdeen, fossils and minerals, do- nated ; William Siders and Ronald Jordan, Vermillion, three Bats, donated ; Lewis Kephart, Vermillion, Bats, donate^ ; Lewis Ort- mayer, Vermillion, large Hornets' nest, donated ; John Visher, Vermillion, Barnacles, donated ; L. A. Riter, Vermillion, American Merganser duck, donated ; Harold Howard, Vermillion, Indian Maul, donated. In addition to arranging the accessions, Mr. Over has classi- fied many of the specimens already in the Museum, and made a catalogue of all plants, birds and mammals. III. Field Work: Stephen S. Visher, and Wm. H. Over, visited Harding County for the Survey during the fall of 1912. This trip was made to complete the herbarium collection and con- tinue geological observations. Collections were especially made in and around Slim Buttes, South Grand River, Cave Hills, Little Missouri River, East and West Short Pine Hills, and Crow Buttes. This route covered the most interesting part of the county, from a geological and biological 'standpoint, and part of the material for this bulletin was obtained on this trip. Some work was done along archeological lines in the Cave Hills, where it was discovered that the old tribes of Arickaree Indians had long ago used for living rooms, the eroded-out de- pressions or "Caves" in the sandstone walls. Fragments of pot- tery, flint and bone articles were found and in one place their 110 REPORT OF ELLWOOD C. PERISHO, STATE GEOLOGIST pictograph writings showed plainly and drawings were taken for future reference. Mr. Barthold Iverson did some valuable field work for the Survey in the eastern part of the state upon the artesian well problem. The State Geologist has spent a limited amount of time in field work in the northwest part of the state making a study of the general geology with special reference to the lignite coal beds. Also in the Southern Black Hills, principally upon the mica and lithia ore formation. A valuable mineral collection was added to the Museum by this trip. He has also made many observations and collected data concerning the Artesian water supply for eastern South Dakota. Wm. H. Over devoted the summer to field work. The month of June was spent upon the fauna and flora of Clay County. Some four hundred plant specimens were obtained. Special at- tention was paid to the collecting of grasses of this locality. Many specimens of Reptiles, Amphibians and Mollusks were taken. During July, August, September and part of October Mr. Over was camping at different localities in the southwestern part of Stanley County, Washabaugh and Lawrence Counties. In Lawrence County about four hundred plant specimens were pro- cured, forty-five 'species being new to our Black Hills collection. In Stanley County the time was occupied in the Badlands collecting fossils, however, nothing of interest in geology or bio- logy was neglected. Perhaps the most valuable specimen collected was an almost complete fossil skull of the ancestral rhinocerous, (Caenopus Tridactylus) found in the Oligocene formation. This was found embedded in a sandstone layer. Later it was worked out of the sandstone matrix and is now on exhibition in the Bad- land fossil case. A number of specimens of fossil Turtles were found, two of which are new to our Museum collection of turtles. The skull of a fossil Elotherium was found in the Oligocene. This mammal was about the size of, and perhaps allied to the ancestral hog. A new species of Helix, a fossil land shell, was also found. Many teeth and parts of a skeleton of the fossil Mesohippus bairdi, or ancestral three toed horse, were collected and much PUBLICATIONS DONE 111 time and effort was spent in hunting for enough of the little horse to warrant us in attempting the construction of a skeleton for the Museum, but without success. Two hundred and fifteen species of plants were collected from Stanley County and seventy from Washabaugh County, about twelve hundred specimens, including duplicates. All plants col- lected from Clay, Stanley and Washabaugh Counties and the Black Hills were properly named and a true type from each specie was labeled, mounted and placed in the Museum Herbarium. The duplicates were all labeled and may be used in exchange for speci- mens from other Universities. The Mollusca of the different localities visited, was also col- lected and will be properly identified. Much attention was paid to the collecting of mammal skins and especially the rodents and bats. These were identified by the United States Biological Survey and many new species were added to our Museum. One species of pocket gopher (Thomomys Clusius) and one of bats (Myotis californicus ciliolabrum) were the first records for the state. Bird Skins of about forty species were taken in Stanley County and the Mountain Plover (Podasocys montanus) is a new record for the state. Eighty specimens of Reptiles and Amphibians were collected and are in the Museum. A number of these were identified by Alexander G. Ruthven of the University of Michigan. Many insects, including grasshoppers, beetles, moths and butterflies were taken in the different localities visited and are in the Museum. IV. Publications. Bulletin IV may be secured upon re- quest. It contains the following articles : ist. Preliminary Report of the Geology of the Northwestern Cen- tral South Dakota — Professor J. E. Todd, formerly State Geologist. 2nd. Preliminary Report on the Geology of Gregory and Tripp Counties. — Ellwood C. Perisho. 3rd. List of Birds, Mammals and Plants of the old Rosebud Reservation. — A. B. Reagan and Sheridan R. Jones. 4th. Drainage of South Dakota. — Professor A. B. McDaniel. Uni- versity of South Dakota. 112 REPORT OF ELLWOOD C. PERISHO, STATE GEOLOGIST Bulletin V., published last year, may be procured upon request. It contains the following articles : ist. Report on the Geography and Geology of Mellette, Washa- baugh, Bennett and Todd Counties. — Ellwood C. Perisho and Stephen S. Visher. 2nd. A Preliminary Report on the Biology of this Area. — Stephen S. Visher. Bulletin VI., published in 1914, and may be procured upon request. It contains : ist. A Preliminary Report on the Biology of Harding County. Stephen S. Visher, under the following subjects: List of Birds, Plants, Mammals, Reptiles and Amphibians, Insects and Mollusks. Notes on Animals and Plants of Economic Importance. 2nd. Biennial Report of State Geologist. The Survey has much material, including field notes, manu- scripts, etc., which should be published as soon as funds are avail- able. The above will include material for two bulletins ; one on the Geology and Mineral resources of Northwest South Dakota. The other, The Birds of South Dakota. V. WORK TO BE DONE. There are a number of in- vestigations that the Survey should do for the people of our state. Among these may be mentioned : i. The continuation of the collecting and proper mounting of the type fauna and flora. The longer this work is delayed the more difficult it will be to procure the needed specimens. A sum expended now, in the biological work of the Survey, will accom- plish much more than even a large appropriation can do in a few years hence. It is the wish of the Survey, not only to locate and discuss and put to the service of the people the economic products of the state, but also to form a good working museum, where there will be found, in usable condition, the type fauna and flora of South Dakota. We are certain that everyone, especially teachers aftd students, will be interested in seeing a large and complete collec- WORK TO BE UNDERTAKEN 113 tion of the mammals, birds and insects, trees, wild flowers and grasses, all properly mounted and described. It is well known that the Surveys of our neighboring states have published educational Bulletins concerning the animal and plant life of their respective areas. No one questions the value of such publications, nor doubts the propriety of extensive appro- priations made for such purposes. The people of our state not only need, but are frequently requesting this information, and they should have it. 2. The services of a competent person for the entire year should be retained to do field and museum work. Specimens col- lected during the summer should be prepared, classified, labeled and properly mounted as quickly as possible. In addition to the collections made during the regular field trips, the Survey secures a large number of specimens during the winter months, which should demand immediate attention; Without such an assistant, individual and entire collections are stored away in boxes for months and at times for years. The work of Wm. H. Over the past year has been exceptionally helpful. 3. In a prairie country like South Dakota, the supply of building material is always a most interesting problem. Our state is rich in clay, cement and building stones. The exceptional var- ieties of clays found, especially in the western part of the state, should be carefully investigated with reference to the manufac- turing of brick as well as to tile and pottery possibilities. If properly studied the almost natural cement character of extensive beds of clay west of the Missouri River, might become of great economic value to the settlers. 4. Few problems now before the people of South Dakota can be of more vital interest than the one of fuel supply. As yet we have no oil, and but little natural gas, used for economic pur- poses. Our extensive Forest Reserves, with the limited amount of timber, is inaccessable to most of our population. 'The people of the state spend annually for fuel, millions of dollars more than the entire yearly gross output of the Homestake and all other mines, and all of our cement plants, brick yards and stone quarries. It is not certain as yet whether we have oil in usable quantities beneath the surface, nor do we know if we have an extensive field of gas which we may draw upon for fuel. These should be Sig.— 8. 114 REPORT OF ELLWOOD C. PERISHO, STATE GEOLOGIST determined. However it is known that we have beds of Lignite Coal, which may be converted into briquetts. In this form our lignite can be easily shipped and used in every way that the hard coal of the eastern states are now being utilized. When ever cheaper transportation is obtained along the Missouri River, or^ a fuel supply at less cost is accessable, then the inexhaustible beds of Niobrara Chalk, Ft. Benton and Ft. Pierre shales may become the sources of the greatest cement manufacturing plants the country has ever seen. South Dakota should have cheaper fuel. The Survey must help in this problem if necessary. 5. THE ARTESIAN WATER SUPPLY. Too much emphasis cannot be placed upon the importance of our artesian wells. No fact is better known, than that the water is decreasing in many of these wells. If the decrease in pressure is due to the loss of water, this must be caused by one of the following reasons : (i) Drainage into rivers which have cut into the water-bearing stratum. (2) Loss of water at the artesian wells. It seems probably that the very sudden decline in the flow of our wells is due to the loss at the well. This loss may be either through the pipe at the surface or around the pipe below the surface into porus beds. The whole problem of our artesian wells should be carefully studied by our Survey in order that proper precautions may be taken to conserve this great resource. If careful investigation shows that the amount of water escaping through the tube at the surface is quantitatively important, laws regulating the size of wells and the flow of water, must be passed and enforced. At present less than 5 per cent, of the water supplied by the artesian wells is used. However, if in- vestigation proves that much more water leaks into porous beds below ground than escapes at the surface, then great efforts will have to be taken to save our artesian well supply, since leaks usually become larger and larger. That there be no hole around the pipe through which water can escape will have to be required by law. At the time of the first piping of new wells, proper precaution can easily be taken. Methods for stopping the leaks in the older wells will have to be devised. That we have been careless in the past concerning our artesian wells, the greatest FUNDS NEEDED 115 mineral product of the eastern part of the state, is evident to all. The time for action has certainly come if this great resource is to be shared by our children. VI. FUNDS NEEDED. The survey should publish other bulletins during the coming period : Bulletin VII, on the Geography, Geology and Coal Resources of Northwestern South Dakota, especially Harding and Perkins Counties; Bulletin VIII, a preliminary report on the birds of South Dakota ; Bulletin IX. A revised "List of the Plants of South Dakota." The Legislature appropriated $3,000 for the past biennial period. In consideration of the work which ought to be done and the reports now awaiting publication, we feel that the appropria- tion for the coming period should be at least $2,000 or $2,500 a year. If all problems outlined above are to be advantageously un- dertaken a larger fund will be required. The policy of the Survey is to do those things which will be of the most real value to the people of the State. This work should be educational as well as simply utilitarian in character. The advancement of knowledge, as well as the development of in- dustries, must be an aim of this organization. The State Survey of South Dakota exists for all the people of the state. The Sur- vey cordially invites the hearty co-operation of all the people of South Dakota. To assist in making the work of the Survey as efficient as possible, Professor Christian P. Lommen of the Department of Biology, and Dr. Alfred N. Cook of the Department of Chemistry, of the State University, fill the positions of Biologist and Chemist respectively. ELLWOOD C. PERISHO, State Geologist. IIVDEX Numbers refer to pages of the Biological Section. Figures referring to pages of the scientific lists where specific names will be found are in each case the last numerals given. Page Abronia 29, 44 Acanthus 81 Accipeter 76 Acer 23, 52 Acerates 56 Aceraceai 52 Achillea 16, 26, 102, 64 Acris 93 Actinella 16, 64 Actitis 71 Adder 92 Adder tongue Family 32 Aegialitis 72 Aeronautes 78 Agastache 58 Agatheis 94 Agelaius 80 Agonoderus 93 Agrinomia 48 Agnolimax 96 Agropyron 16,34 Agrostemna 44 Agrostis 16, 34 Alfalfa, wild 51 Alisma 30, 34 Alismaceae 34 Allium 16, 19, 39 Allonia 29, 44 Alopecurus '. 34 Ambrosia 29, 63 Aniara 94 Amaranthaceae 44 Amaranthus 18, 44 Amblystegium 67 Amelanchier 23, 49 Ameuirus 30 Ammondromus 82 Amorpha 16, 50 Amphibian 14, 30, 93 Anacardiaceae 52 Anas 69 Andropogon .... 16, 26, 29, 34 Androsace . . . 56 Angiosperms 33 Anemone 45 Anodonta 30, 95 Anogra 16, 54 Page Antelope 14, 17, 20, 88 Antennaria 26, 63 Anthemideae 64 Antilocapra 88 Anthus 86 Ants 17 Apatela 94 Apocyaceae 56 Apocynum 56 Apple, balsam 60 Apple family 49 Aquila 76 Arabis 16, 46 Aragallus 26, 50 Archibuteo 76 Ardea 70 Argemone 46 Argynnis 94 Aristida 16, 35 Arrowhead 30 Artemisia 16, 18, 19, 26, 27, 29, 64 Asclepias 56 Ash 23, 56 Asio 76 Asparagus 39 Aspen 23, 26, 40 Asphia 93 Aster 16, 19, 61 Golden 16, 27, 61 Astragalinus 81 Astragalus 16, 19, 26, 50 Astur 76 Atheropogon 35 Atriplex 27, 43 Autographa 94 Avocet . 71 Badger 17, 20, 91 Badlands 14, 27 Conditions 27 Life 27, 28 Bahia 64 Baldpate 69 Balm 58 Bartramia 71 Bascanion 92 Batrachium 30, 45 Basilaichia . 94 118 INDEX — Continued Page Bats 24, 27, 91, 92 Bayonet, Spanish 26 Bean Buffalo 16, 50 Wild 51 Bear 14, 91 Beaver 30, 31, 89 Bedstraw 24, 26, 60 Beetles 17, 30, 98, 93 Beckmannia 35 Bell, blue or hair 26, 60 Berberis 102, 46 Berry Bear 55 Buffalo 23, 27, 102, 53 Rasp 49 Service 23, 102, 49 Straw 24, 48 Wolf 60 Berberidaceae 46 Betulaceae 41 Betula 41 Bidens 31, 63 Bifderia 96 Bighorn 14, 28, 88 Biology of the past 12 Birch . 41 Birds 13, 14 List of 68 Plains 17, 20 Bison 14, 88 Bittern 70 Bitter, sweet 24, 52 Blackbirds -. 80, 98 Brewers 17, 80 Blazing star 16, 18, 60 Elite, goats 43 Blowouts 11, 29 Bluebird 26, 87 Bnuim 67 Bobcat •. . . 90 Bobolink 80 Bog 30 Boleosoma 31 Bombycilla 84 Bonasa 73 Boneset 27, 61 Borage 57 Boraginaceae 57 Botrychium 32 Botaurus 70 Bouteloua 16, 35 Box elder 23, 52 Brachystola 93 Brachytheciunum 67 Branta 70 Brassica 102, 46 Brauneria 16, 19, 63 Page Bromus , . . 24, 35 Bryum 67 Buchlo 16, 35 Bubo 76 Buckwheat 41 Bufo 93 Buffalo, S. D 28 Buffalo 84 Bufflehead 70 Bugseed 43 Bunting 83 Lark 17, 21, 83 Butorides 70 Bush, buck 23, 60 Rabbit 27, 61 Sage 65 Salt 27, 43 Skunk 26, 52 Buttercup 30, 45 Buttes Birds of 26 Conditions of 25 Location of 11 Mammals of 27 Plants of 25, 26 Slim 11, 12, 17, 27, 28 Buzzards 26 Cactaceae 53 Cactus 18, 53 Calamogrostis 35 Calcarius 81 Calegrapha 94 Callitriche 52 Callitrichaceae 53 Calochortus 16, 39 Calomospiza 83 Calomovilfa 35 Camas 39 Camelina 46 Campanula 26, 60 Canis 90 Canvas back 69 Canyons 23 Capparidaceae '. 47 Capper family 47 Caprifoliaceae 60 Capsella 15, 46 Carex 30, 37 Carduus 24, 65, 68 Carophyllaceae 44 Carum 55 Carthartes 75 Castelleja 59 Castor 89 Catabrosa 31, 35 Catostonus 30 INDEX — Continued 119 Page Catbird 86 Catnip 58 Cattail 31, 33 Catron, S 68 Cave Hills 11, 23, 25 Cedar 26, 27, 103, 33 Celastris 24, 52 Celtis 23 Centrocercus 73 Cerastium 26, 44 Cervus 87 Ceryle 77 Chaenactis 64 Chaetochloa 35 Chamaenerion 54 Chara 30 Chat 24, 86 Chelydra 93 Chenopodium . . 16, 27, 102, 43 Chenopods 16, 43 Cherry Ground 29, 102, 58 Choke 102, 49 Sand 26, 102, 49 Chickadee 26, 87 Chicken, Prairie 72 Chipmunk 24, 27, 88 Chondestes 82 Chordeiles 77 Chrysopsis 16, 27, 61 Cicely, sweet Cichorieae 66 Cicuta 30, 55 Cieindela 94 Cinquefoil 48 Circus 75 Cirsium 66 Citellus 88 Cladonia 66 Clam 30 Clay, Pierre 17 Cleavers 60 Clemantine 24, 45 Clematis 45 Cleome 29, 47 Climatic conditions . 12, 18, 25, 27, 28 Cloudiness 15 Clover White 51 Prairie 16, 51 Cockle 44 Cocklebur 64 Cocoyzus 77 Coelnonvnpha 94 Cogswellia 16, 55 Colaptes 77 Coleoptera 93 Page Colias 94 Collomia 57 Colors of flowers 20 Colymbus 68 Comandra 41 Commelinaceae 39 Composites 60 Of steppe 16 Coneflower 16, 64 Convallariceae 40 Convolvulus 56 Convolvulaceae 56 Coot 70 Corispermum 43 Coreopsis 63 Corvus 79 ' Cornaceae 55 Cornus 23, 55 Corydalis 46 Corynorhinus 27, 92 Cottontail 24, 90 Cottonwood 11, 12, 103, 23 Cowbird 80 Coyote ...15, 17, 20, 96, 99, 90 Crane 14, 70 Crataegus 23, 49 Crawfish 14 Creeper, Virginia 24,53 Grepis 66 Crook, Camp, S. D 17 Crossbill 24, 81 Crotalus 92 Crow 79, 93 Crucifers 16, 46 Crustacia _ 30 Crypanthe 57 Cucumber, wild 60 Cucurbitacea 60 Cuckoo 77 Currants 23, 102, 48 Cyanocephalus 80 Cymatophora 94 Cymapterus 19, 55 Cymareae 65 Cynomys 89 Cyperaceae 37 Cyperus 38 D Dactylotum 93 Dafila 69 Dasiophora 48 Deer 24, 28, 87 Dendroica 85 Dicerca 94 Disonycha 94 Disporum 24, 40 Distichlis . 35 120 INDEX — Continued Page Dock 30 Dog, prairie 17, 20, 23, 97, 89 Dogbane 56 Dogwood 23 Dolichonyz . . . . 80 Dove 24, 75 Donisa 94 Draba 46 Drainage 11 Drosteria 94 Drought, results of 19 Drupaceae 49 Drymocallis 48 Dryopteris . ." 32 Ducks 14, 30, 69 Dumetella 86 E Eagle 26 E>chinochloa 35 Echmocystis 60 Ecological formations 14 Elaeagnaceae 53 Eleocharis 30, 38 Elgruns 35 Elk 14, 87 Elm 23, 102, 41 Empidonax 79 Epilobium 30, 54 Eptesicus 24 Equisetaceae 33 Equisetum 33 Erethizon 24, 90 Ericaceae 55 Ericoma 36 Erigeron 16, 62 Eriogonuun .... 16, 26, 29, 41 Ermine 17 Erynnis 94 Erysimum 16, 46 Euconulus 95 Eupatorieae 60 Euphagus 80 Euphorbia .... 19, 29, 101, 52 Euphorbiaceae 52 Euptoieta .' . . 94 Eurotia 43 Eutamias 24, 27, 88 Palco 76 Falcon 26, 27 Felis 24, 91 Fern 24, 26, 32 Festuca 36 Fiber 89 Filix 24, 32 Fires, Prairie 19, 25 Page Fish 14, 30, 31 Buffalo 30 Bullhead 30 Cat 30 Dace 30 Darter 31 Minnows 30 Sucker 30 Trout 31 Flats, grassy 14, 22, 23 Flax, Marsh 63 False, wild 16, 46, 52 Fleabone 102, 62 Flicker 24, 77 Flicker-tail 88 Flies 17, 30 Flower Bunch 39 Cone 18, 64 Pasque 18, 45 Sun 64 Twin 24, 60 Wall 16, 46 Flycatcher 24, 78, 79 Four-o'clock 44 Fragaria 24, 48 Franseria 29, 63 Fraxinus 23, 56 Fritillaria 39 Frogs 30, 93 Fox 17, 90 Fulica 71 G Galeracella 94 Galium 24, 60 Gallinage 71 Gammarus 31 Gaura 16, 19, 54 Gavia 69 Gayophytum 54 Geese 70 Gentiana 56 Gentianaece 56 Geum 24, 26, 47 Geothlypis 86 Gilia 26, 57 Glyceria 36 Glycyrrhiza 50 Golden-rod 16, 19, 24, 62 Gold-finch 24, 81 Gooseberry 23, 102, 48 Goosefoot 43 Gopher, pocket, 17, 20, 27, 98, 89 Stripped 17, 20, 98, 88 Grackle 81 Gramineae 34 INDEX — Continued 121 Page Grape 53 Oregon 102 Gratiola 30, 59 Grass Family 34 Grass Alkali 35 Arrow 30, 33 Blue 37 Blue stem 16, 34 Brome 24, 35 Buffalo 16, 18, 35 Bunch 26, 29, 35 Canary 31 Cord 20, 31 Dropseed 37 Foxtail 35 Grama 16, 18, 35 June 36 Marsh 37 Mat 31 Meadow 37 Needle 29, 37 Pepper 46 Reed 35 Redtop 24 Sand 29, 35 Squirreltail . 24, 36 Spear 37 Tickle 16, 34 Wheat 16, 18, 34 Wild rye 24, 36 Wire 16 Grasshoppers 1<, 98, 93 Grassy Flats 14, 22 Grebes 68, 69 Grindelia 16, 102, 62 Grinnell, G. B., 68 Grizzly 91 Grosbeak 24, 82 Gromwell 51 Grossulariaceae 48 Grouse, sharptailed 14,23,26, rt 3 Grus 70 Gull 69 Gutierrizia 18, 27, 62 Hackberry - 23 Halerpestes 30, 45 Haliaeetus 76 Haw, Black 23, 60 Hawks 96, 99, 75, 76 Marsh 17, 75 Redtailed 26, 76 Swainson 17, 76 Sparrow 24, 76 Hawthorne 23, 49 Hawkweed 66 Page Heath family 55 Hedeoma 58 Helenieae 64 Heliantheae 63 Helianthus 16, 69 Heiodromas 71 Hemlock, water 30, 55 Hen, sage 73 Herb, willow 30, 54 Herons 30, 70 Heterodon 92 Heuchera -47 Hieraceum 66 Hills Cave 11, 23, 25, 30 Short Pine 11, 25, 27, 28 Hoarhound 30, 58 Hop 24, 41 Hordeum 24, 36 Horsetail 33 Humidity 23 Humulus 24, 41 Hirundo 83 Hydrophyllaceae 57 Hylocichla 87 Hymenopappus 64 Hymenoptera 94 Hyssop 30, 58 Hisperis 94 Histera 94 I Ictalarus 30 Icterus 80 Ictiobus 30 Indian-Pipe 55 Insects . . 13, 14, 29, 30, 31, 93 Inulcae, tribe 63 Iridaceae 40 Iris 40 Iva 64 Ivy, Poison 24, 101, 52 J Jay 26, 98, 80 Juncaceae 39 Juncaginaceae 34 Junco 26, 82 Juncus 30, 39 Juniper 26, 33 Juniperus 26, 27, 33 K Killdeer 17, 30, 71 Kingbird 24, 78 Kingfisher 30, i 1 Kinnkinick oo Koeleria 36 Kuhnia 27, 61 122 INDEX— Continued Page Labiatae 58 Lacinaria 16, 18, 60 Lactuca 66 Lampsilis 95 Lanius 84 Lappula 57 Larus 69 Lark, Horned 17, 20, 79 Lasiurus 24, 92 Lasionyctaris 91 Lavauxia 54 Lead-plant 16, 50 Lebia 94 Legumes 16, 50 Legummosae 50 Lemna . , 38 Lemnaceae 38 Lepargyraea 23 Lepidoptera 94 Lepidium 46 Leptilon 102, 62 Leptinotarsa 98 Lepus 24, 90 Lesquerella 16, 47 Leucrinum 16, 19, 39 Liatris 16,60 Lichens 66 Light 15 Liliaceae 39 Lily, Prairie 16, 39 Gumbo 27, 54 Limmorchis 31, 40 Linaceae 52 Linnea 24, 60 Linum 16, 19, 52 Lithospermum 16, 57 Lizards 13, 14, 92 Loasaceae 53 Loco 16, 26, 100, 50 Locust 93 Longspur 17, 21, 81 ,Loon 69 Lophodytes 69 Lotus 16, 51 Loxia 81 Lupine 16, 29, 51 Lupinus 16, 29, 51 Lutra 91 Lycaena 94 Lychnis 45 Lycopus 30, 58 Lycodesmia 16, 18, 66 Lymnaea 30, 95 Lyneda 94 Lynx 24, 90 M Page Machaeranthera 27, 62 Macrocalyx 57 Madia 64 Magpie 24, 98, 79 Mallard 69 Malvaceae 53 Mamillaria 53 Mammals 14, 17, 20, 31, 87 Mann, Wm. M., 93 Malvastrum 16, 19, 53 Maple family 52 Mareca 69 Marigold 31, 63 Marila 69 Marshes 29, 31 Marsileaceae 32 Marsilia 32 Meadowlark .... 17, 21, 23, 80 Melanophus 93 Melanthaceae 39 Melilotus 51 Melospiza 82 Mentha 30, 58 Mentzelia 27, 53 Mephitis 24, 91 Merganser 69 Mergus 69 Meridolix 16, 54 Mertensia 58 Mink 30, 91 Mice 14, 17, 24, 98, 89 Micropalama 71 Microtus 89 Milfort 64 Mint 30, 58 Horse 24, 58 Mimus 86 Minium 67 Missouri, Little 11, 23 Mocking-bird 86 Mollusca 95 Molothrus 80 Monarda 24, 58 Monocots 16 Monolepis 44 Monotropaceae 55 Morning glory 56 Bush 18, 57 Morse, L. P., 93 Mosses 67 Moth, Sage 23 Mountain, Table 25 Moraceae 41 Mosauitoes 31 Muhlenbergia 36 Mulberry 41 Mus 89 INDEX — Continued 123 Page Musculium 95 Mustard 102, 46 Mycteris 92 Myiochones 78 Myotis 91 N Naradaceae 33 Nastursian 47 Xavarretia D7 Nelson, Aven 32 Xeotoma 24, 27, 89 Nettion 69 Nettle 24, 41 Nimexia 24, 40 Xighthawk 17, 77 Xiggerhead 16, 63 Xocturus 93 Xothocalais 66 Xotropis 30 Nucipaga . . : 80 Xumenius 71 Nutcracker 80 Nuthatch 87 Nuttallornis 79 Xyctaginaceae ' 44 Nyctea 77 Xycticorax 70 O Oak 12 Oenothera 54 Odocoileus 24, 87 Oleaceae 56 Oleaster family 53 Olive family 56 Omychomys 89 Onagra 16, o4 Onagraceae 54 Onion 16 Opeia .....' 93 Ophioglossaceae 32 Opuntia 53 Orchid 31, 40 Orchidaceae 40 Oreocarya 16,58 Oriole 80 Orobanche 29, 59 Orobanchaceae 59 Orthocarpus 16, 59 Orthoptera 93 Orthotrichium 67 Otocoris 79 Otter 30, 91 Ovenbird 85 Over, W. H., 13, 32, 86, 92, 95 Ovis 88 Owls 96, 76, 77 Page Burrowing 17, 23, 76 Horned 26, 27, 76 Oxalis 16, 51 Oxyechus 71 Pachybrachus 94 Pachlophus 27, 54 Pandion 76 Panicum 36 Papaveraceae 46 Parmelia 67, 66 Paronychia 45 Parsnip family 55 Parthenocissus 24, 53 Passer 81 Passerculus 81 Passerina 83 Pea family 50 Pear, prickly 53 Pedeoccetes 73 Pellea 32 Peltigera 67 Penny royal 58 Penthestes 87 Pentstemon 16, 19, 59 Peromyocus 89 Petalostemon 16, 51 Petrochelidon 83 Pewee, wood 78 Phacelia 26, 57 Phalaenoptilus 77 Phalaris 31, 36 Philanthus 94 Philonotes 68 Phleum 36 Phlox 26, 57 Phoebe 26, 27, 78 Phoxinus 30 Phrynosoma 92 Phycoides 94 Physa 30, 95 Physalis 29, 102, 58 Physaria 47 Pica 79 Pierre clay 17 Pilsbry, H. A., 95 Pine 11, 12, 14, 23, 25, 102, 33 Pinedrops 55 Pineaceae 33 Pink Family 44 Pink, Prairie 16, 18 Pinus 23, 25, 102, 33 Pipilo 82 Pipit 86 Piranga 83 Pisidium 95 Pisobia 71 124 INDEX — Continued Page Pityophis 92 Planesticus 87 Planorbis 30, 95 Plants Bee 29 Food 99 Gum 102, 62 Poisonous 100 Resurrection ^3 Plants of steppe 16 Plantago 16, 59, 60 Plantin 16, 30, 34, 59 Plectrophenax 81 Plover, Upland 17 Plovers 71, 72 Poa 24, 36 Plum 23, 102, 49 Podilymbus 69 Polanisia 29, 47 Polemoneaceae 57 Polygala 16, 52 Polygalaceae 52 Polygonaceae 41 Polygonum 30, 42 Polypodiaceae 32 Polytrichuum 68 Pomaceae 49 Ponds 29, 30 Porzana 70 Pooecetes 81 Poorwill 77 Poppy 46 Populus 11, 12, 23, 26, 40 Porcupine 24, 27, 90 Portulacaceae 44 Potentilla 26, 48 Potomageton 30, 33 Precipitation 11, 15 Primba 94 Primrose, evening 16, 54 Primrose, family 56 Primulaceae 56 Procyon 24, 91 Primus 23, 26, 49 Pseudoleskeela 68 Psoralia 16, 18, 19, 102, 51 Ptesospora 55 Puccinellia 37 Puccoon 16, 57 Puppy, mud 93 Pulsatilla 19, 45 Puma 14, 91 Purse, Shepards 16,46 Purslane 44 Putorius 91 Pyramidula 96 Pyramus 94 Page .Pyrola 24, 55 Pyrolaceae .55 Querquedula 69 Quiscalus 81 B Rabbit Cotton tail ... 24, 98, 99, 90 Jack 17, 20, 98, 99, 90 Raccoon 24, 91 Rail 70 Rallus 70 Ramalina 67 Rana 93 Ranunculaceae 45 Ranunculus 30, 45 Rape, broome 29, 59 Rat Musk 30, 31, 89 Pack 24, 27, 89 Ratbida 16, 19, 64 Raven 79 Ravines 14 Recurvirostra .- 71 Redpoll 81 Redroot 44 Redstart 86 Redwing 80 Reptiles 12, 20, 30, 92 Rera Gap 11, 12, 27 Rhus 24, 26 Rhynchophanes 81 Ribes 23, 48 Riparia 84 Rivers 11, 13, 29 Robin 26, 87 Roripa 30, 47 Rosa 16, 23, 29, 49 Rose ...16, 18, 23, 29, 48, 49 Rowley, B. B., 32, 94 Rubiaceae 60 Rubus 49 Rumex 30, 42 Rush 30 S Sage . 16, 26, 65 White 43 Sagittaria 30, 34 Salicaceae . ' 40 Salix 40 Salpinctes 86 Salsola 18, 44 Salvelinus 31 Samcula 24, 55 Sandalwood 41 INDEX — Continued 125 Page Sandhill formation 16, 28 Sandpipers 30, 71 Santalaceae 41 Saponaria 45 Saprinus 94 Satyris 94 Saunders, A. A., 68 Saxifagaceae 47 Sayornis 78 Scaphiopus 93 Scaups 70 Schedonnardus 37 Scirpus 30, 88 Sciurus 88 Scoliopteryx 94 Scrops 16, 59 Sedge 30, 37 Seed, tick 63 Seiurus 85 Selaginella 33 Selaginellaceae 33 Senicio 19, 27, 65 Setophaga 86 Shade, night 58 Shepherdia 27, 53 Short Pine Hills 11, 25 Shrew 91 Shoveller 69 Shrike 24, 84 Shrimp 31 Sialia 87 Sideranthus 16, 62 Sieversia 26, 49 Silene 45 Siskin 81 Sisyrinchium 40 Sitta 87 Skunk 17, 24, 96, 91 Skin Buttes 11 Smilaceae 40 Smilacina 24, 40 Smilax 24, 40 Snails 17, 30 Snake-root 24, 55 Snakes 14, 20, 96, 92 Bull 17, 20, 92 Garter 30, 92 Rattle 17, 20, 92 Soil 12 Solanoceae 58 Solanum 98, 58 Solidays 16, 19, 24, 62 Solomon-Seal, false 24 Sonchus 66 Sophia 16, .47 Sora 70 Sorex 91 Sorrel, wood . 51 Page Sparogemon 93 Sparrow, Lark 24 Sparrows 81 W. Vesper 17, 81 Spartina 30, 37 Spatula 69 Speotyo 77 Sphaerium 95 Spiders 17 Spilogale 24, 91 Sphaerium 30 Spinas 81 Spizella 82 Sporobolus 37 Spurge 19, 29, b2 Squirrel, red 88 Star, Blazing 16, 18, 60 Steppe Birds 21 Conditions 15 Insects 21 Mammals 20 Plants 16 Reptiles 21 Stereodon 68 Sticktight 57 Stipa 29, 37 Strife, loose 56 Stieronema 24,56 Strophostyles 51 Sturnella 80 Suaeda 44 Sucession, seasonal 19 Succinea 17, 95 Sunflower 16, 64 Sumac 52 Susan, Blackeyed 63 Swallows 27, 83 Swift, white throated 26, 28, 78 Swift, Prarie 17, 20, 90 Symphorocarpus 23, 60 Talinum 44 Tanager 26, 83 Tansey 102, 47 Teal 69 Temperature 15 Tern 69 Terraces 22 Terrapin 92 Tertiary 13 Thalictrum 46 Tharraos 94 Thermopsia 27, 51 Thistle 24, 65, 66 Thistle, Russian 18, 44 Thrasher 24, 86 126 INDEX— Concluded Page Thrush 87 Water 85 Tick, beggars 30, 63 Thindium 68 Thonmomys 27, 89 Toad 93 Toadflax 41 Tomato, wild 102, 58 Tongue, Beard 59 Topography . . 11, 12, 14 Tortula 68 Totanus 71 Towhee 24, 26, 82 Towndsendia 19 Toxostoma 86 Trahescantia 29, 39 Triglochisn 30, 33 Trirhabda 94 Troglodytes 86- Troximon 66 Tryngites 71 Turnip, Indian 18, 102 Turtles 14, 92 Tympanuchus 72 Typha 31, 33 Tyrannus 78 U Ulmaseae 41 Ulmus 23, 102, 41 Umbelleferae 55 Upland, Grass-covered, see Steppe Ursus 91 Urtica 24, 41 Urticaceae 41 Usnea .... . 67 Valley, lily 40 Vallonia 95 Vegetation 12 Vebena 58 Veronica 59 Vervain 58 Vetch 16, 51 Viburnium 23, 60 Vicia 16, 51 Viola 19, 53 Violet 53 Vireo 85 Vireosylva 85 Vitacene 53 Vitis 53 Vole 17, 20, 89 Vlupes 90 Vulture 75 W Warber, Auduboa 26, 85 Pago Warbler, yellow 24, 85 Washingtonia 55 Wasps 17 Water, ground 22 Watercress 30 Waterleaf 57 Waxwing 26, 84 Weasel 17, 96, 91 Weather, unseasonable 19 Weeds 103 Chick 44 Clammy 29 Duck 38 Knot 42 Fire 54 Prairie 62 Hawk 66 Milk &6 Resin or gum 16, 18, 102, 62 Pond 30, 33 Smart 30 Tar 64 Tumble 18, 44 Williams, R. S 66 Willow 40 Wilsonia .' 86 Wind 15 Wintergreen 24, 55 Wire-grass formation 16 Wolf 17, 20, 90, 96 Woodpeckers 24, 26, 77 Woods 14, 23, 24, 25, 26, 102 Woodsia 26, 32 Worms 14 Wormwood 16, 29, 64 Wort 59 Milk 16 Spider 29, 39 Wren House 26, 86 Rock 26, 27, 86 Xanthium 64 Xanthocephalus 80 Y Yarrow 16, 26, 102, 64 Yellow-legs 71 Yellowthroat 8-6 Yucca 26, 39 Z Zamelodia 82 Zapus 24, 90 Zenaidura 75 Zonitoides 96 Zonotrichia 82 Zygodemus 19, 39 ADVERTISEMENT. Bulletins 1-3 (1894-1900) are entirely distributed. Bulletin 4 (1908) can be obtained upon payment of 10 cents. The chief articles are: A Preliminary Report on the Geology of the Northwest- Central Portion of South Dakota J. E. Todd A Preliminary Report on the Geology of Gregory and Tripp Counties Ellwood C. Perisho (Reprints of this article are available.) Notes on the Flora and Fauna of the old Rosebud Reser- vation S. R. Jones, A. B. Reagan Bulletin 5 (1912) will be supplied upon request to residents of South Dakota. Others will please send 10 cents. This bul- letin deals in a preliminary way with Mellette, Washabaugh, Bennett and Todd Counties. The articles are: The Geography of South-Central S. D S. S. Visher The Geology of this Area Ellwood C. Perisho and S. S. Visher The Biology of this Area S-. S. Visher Bulletin 6 will be mailed free of charge to South Dakotans. Other individuals will please send 10 cents. Address, the State Geologist, Vermillion, South Dakota. 14 DAY USE RETURN TO DESK FROM WHICH BORROWED EARTH SCIENCES LIBRARY This book is due on the last date stamped below, or on the date to which renewed. Renewed books are subject to immediate recall. LD 21-40m-5,'65 (F4308slO)476 General Library University of California Berkeley