^ySr^^'^HiUfSSi SS < I :f A5 \ **^ • i^^^S ^i tK^ LM ^ A- .C '^ .-■;.»: ..-^-S^., I' -^y-jl' ■'i- -/ l-^J^^r^m^^V-;/^ 'X, WA '^4:^ ^.^ X V 30 .♦», U. S. DEPARTMENT OF AGRICULTURE OFFICE OF EXPERIMENT STATIONS A. C. TRUE, DIRECTOR EXPERIMENT STATION RECORD VOLUME XXX JANUARY- JUNE, 1914 LIBRARY NEW YORK BOTANICAL QAKDEW. WASHINGTON GOVERNMENT PRINTING OFFICE 1914 ~A U. S. DEPARTMENT OF AGRICULTURE. Scientific Bureaus. Weather Bureau — C. F. Marvin, Chief. Bureau of Anim4.l Industry — A. D. Melvin, Chief. Bureau of Plant Industry — W. A. Taylor, Chief. Forest Service — H. S. Graves, Forester. Bureau of Soils — Milton WTiitney, Chief. Bureau of Chemistry — C. L. Alsberg, Chief. Bureau of Statistics — L. M. Estabrook, Statistician. Bureau of Entomology — L. O. Howard, Entomologist. Bureau of Biological Survey — H. W. Henshaw, Chief. Office of Public Roads — L. W. Page, Director. Office of Experiment Stations — A. C. True, Director. THE AGRICULTURAL EXPERIMENT STATIONS. Alabama— College Station: Auburn; J. F. Duggar.o Canebrake Station: Uniontown; L. H. Moore.o Tuskegee Station: Tuskegee Institute; G. W. Carver.o Alaska— iSiiSAS— Manhattan: W. M. Jardine.o Kesivcky— Lexington: J. H. Kastle.o LOUISLAlNA— State Station: Baton Rouge; \ Sugar Station: ^Md«6onParfc,„^ ,. ^ , ,T ^, >W. R. Dodson.o New Orleans; | North La. Station: Calhoun; J Maine— Orono; C. D. "VVoods.o Marylani>— CoWc^e Park: H. J. Patterson.o Massachusetts— ^mfters^; W. P. Brooks.o Michigan— £o5< Lansing: R. S. Shaw. a Minnesota— University Farm, St. Paul: A. F. Woods.a Mississippi— ^^rjCMttwrai College: E. R. Lloyd.o Missouri— College Station: Columbia; F. B. Mumford.o Fruit Station: Mountain Grove; Paul Evans.a a Director. 6 Special agent in charge, Mont Ay; A— Bozeman: F. B. Linfield.o Nebraska— imcoZn.' E. A. Burnett.o Nevada— J2fr?o.' S. B. Doten.o New Hampshire— Dwrftam.- J. C. Kendall.o New Jersey — New Brunswick: J. G. Lipman.o New Mexico— Sia^e College: Fabian Garcia.o New York— State Station: Geneva; W. H. Jordan. « Cornell Station: Ithaca; B. T. Galloway.* North Carolina— College Station: West Raleigh;\^ „. _., State Station: Raleigh; T' ^^- ^^S^''^''* North 'Dakota— Agricultural College: T. P. Cooper.o Omo— Wooster: C. E. Thome.o Oklahoma— )S^?ZZM;a^er.- L. L. Lewis.o Oregon— CormZZis; A. B. Cordley.o Pennsylvania — State College: R. L. Watts.o State College: Institute of Animal Nutrition; H. P. Armsby.a Porto Rico— Federal Station: Mayaguez; D. W. May. 6 Sugar Planters' Station: Rio Piedras; J. T. Crawley.o Rhode Island — Kingston: B. L. HartweU.o South Carolina— CZcmson College: J. N, Har- per.o South Dakota— Brookings: J, W. Wilson.o Tennessee— Znoit^iZZe.- H. A. Morgan.o Texas— CoZZef^e Station: B. Youngblood.o JjTAn—Logan: E. D. Ball.o V^RisiONT-Burlington: J. L. Hills.o Virginia— Blacksburg:Vf. J. Schoene.c Norfolk: Truck Station; T. C. Johnson.** "Wasiiington- PttZZmaw.- 1. D. Cardiff.** West Virginia— Morgantown: E. D. Sander- son.a Wisconsin— Jfodison.-H. L. Russell.o Wyoming — Laramie: H. G. Knight.o in Charge. c Acting director. II EXPERIMENT STATION RECORD, Editor: E. W. ALLEN, Ph. D., Assistant Director. Assistant Editor: H. L. Knight. EDITORIAL DEPARTMENTS. Agricultural Chemistry and Agrotechny — L. W. Fetzer, Ph. D., M. D. Meteorology, Soils, and Fertilizers]-. *„- m [R. ^. Trullinger. Agricultural Botany, Bacteriology, Vegetable Pathology|,„' ^" _^^^^' • • T^- ij r^ \J. I. SCHULTE. ^'^'^'^■^Pia. M.Tucker, Ph.D. Horticulture and Forestry — E. J. Glasson. t:, T . XT AT + •*• fC. F. Langworthy, Ph. D., D. Sc. Foods and Human Nutntioniutions of manganese salts, Acqua 31 Deposits in plant tissues duo to culture in manganese nitrate solution, Boselli. . 31 Influence of nitrates on toxicity toward fungus spores, Hawkins 31 The action of sodinm sulphate as affecting growth of plants, Haselhoff 31 Atmospheric impurities near an industrial city, Crowther and Steuart 32 Influence of tar, particularly tarred streets, on vegetation, Claussen 32 FIELD CROPS. Study of farm practice versus field experiments, Spillman 32 Determination of probal)le error in field experiments, Hamoth 32 Determinations of probable errors in field experiments, Alexandrowitsch 83 Determination of probable errors in field experiments, Hamoth 33 Methods of testing varieties, Kostecki 33 Variety tests of field crops, Lemmermann et al 33 Electroculture, Escard 33 Observations on some new methods of growing cereals, Remy and Kreplin 33 Dominant and recessive characters in barley and oat hybrids, Thatcher 33 [Fertilizer experiments], de Jong 34 Cooperative irrigation experiments at Davis, Cal., 1909-1912, Beckett 34 The reseeding of depleted grazing lands to cultivated forage plants, Sampson. . . 35 A note on two textile plants from the Belgian Kongo, Mestdagh 35 Alfalfa seed production, Blinn 35 Alfalfa management in Iowa, Hughes 36 Experiments with Turkestan alfalfa in Hungary, Grarfas 36 A new two-rowed winter barlej', Neumann -.■•-•. ^^ A mutation in a pure line ot Hordeum distichum, Kiessling 36 Variation studies in brome grass, Keyser 36 On the presence of hydrocyanic acid in wliite clover, Mirande 36 Silver King. — A corn for northern Iowa, Hughes 37 Com culture in North Carolina, Burgess 37 Notes on com growing in Guam, Thompson - - 37 Twelfth report of Indiana Com Growers' Association, edited by Christie 37 Fourtli annual report of the Ontario Com Growers' Association, Duff 37 Rubelzui cotton: A new species of Gossypium from Guatemala, Lewton 37 The cotton of the Hopi Indians: A new species of Gossypium, Lewton 37 Experiments on the retting of flax, Ringelmann 37 Potassium fertilizer for hops, Neumann 37 Seed varieties of Lupinus angustifolius and L. luteua, Kajanus 38 IV CONTENTS. Page. African Baanioe, Henry, Yye«, wid Ammaon 38 Vegetative experiments with 88 varieties of oats, Schneider 38 Breeding and seed production of tho Rcht«l Mountain oats, Raum 38 Wild plantain fiber from India 38 Variety [and manurial] teats of potatoes, Dacy -^ 38 Pointers on the growing and selection of types of eating potatoes, Schiftan 39 Experiments in the defoliation of sugar beets, Strohmer, Briem, and Fallada. . 39 Small beet seed, Briem 39 The size of the seed ball of beets, Plahn-Appiani 39 The value of bees to seed beet growing, Vaailieff 39 The manuring of sugar cane at Samalkota, 1902-1912, Hilson 39 The culture of flue-cured tobacco, Mathewson 39 The U telo, a plant with oleaginous seeds, Mestdagh 39 On the selection of a type of wheat resistant to severe winters, Kolkunov 40 Portuguese varieties of wheat and their improvement, Klein 40 Clover and grass seeds, Boerger 40 Seed tests, Hiltner et al 40 HOBTIOTJLTURB . Grarden farming, Corbett 40 Pomology, horticulture, and viticulture, Reimers 40 Report of field work by the horticultural department during 1911, Dacy 40 [Fruit trees in Paraguay], Bertoni 41 Wild fruits of Paraguay, Bertoni 41 The pubescent-fruited species of Prunus of the Southwestern States, Mason. . . 41 Fruit variety testa on the Southern Utah Experiment Farm, Ballantyne 41 Orchard notes, Thompson 41 Fruit for exhibition, Batchelor 41 Box packing of apples. Palmer 41 Packing Indiana apples. Palmer 41 Cold stoia^e for Iowa-grown apples, Greene 41 The Amencan peach orchard, Waugh 42 Maurer's gooseberry book, Maurer 42 The practice of grape growing. — I, The technique of grape grafting, Wanner. . . 43 Influence of various grape stocks on the harvest, Faes and Porchet 43 The sexual elements of grape hybrids, Gard 43 Variability of the coffees grown in the Dutch East Indies, Cramer 43 First reports on selection testa of Robusta coffee. Van Hall 43 On the tarring of pruning-wounds in tea plants, Bernard and Deuss 43 Tea manuring experiments, Bernard and Deuss 43 Leucasna glauca as a green manure for tea, Bernard 43 Individual variation in the alkaloidal content of belladonna plants, Sievers. . . 44 Rose geranium culture, Charabot and Gatin 44 FORESTRY. Forestry, Hausrath 44 Forestry, Kostlan 44 Logging, Bryant 44 Work of the Dominion Forestry Branch, Campbell 44 [Report of the] committee on forests, Leavitt et al 45 Forest policy of British Columbia, Ross 45 Avondale Forestry Station, Forbes 45 Report on forest statistics of Alsace-Lorraine 45 The sun energy in the forest, Wagner 45 The influence of aquatic mediums on the roots of trees, Bondois 45 Florida trees. Small 45 The forests of the Far East, Hofmann 45 Some Douglas fir plantations.— II, Cochwillan wood, North Wales, Thomson. . 46 The structure of the wood of East Indian species of Pinus, Groom and Riishton. 46 The kapok trees of Togo, Ulbrich 46 The "wood-oil" trees of China and Japan, Wilson 46 Tagua, vegetable ivory, Albes 46 Uses of beech, birches, and maples, Maxwell 46 The wood-using industries of Iowa, Maxwell and Harris 46 Forest products of Canada, 1912, Lewis and Boyce 46 To get long life from untreated timber in trestles 47 CONTEin». V DISEASES OF PLANTS. Page. Smut diseaece of cultivated plai. ta, their cause and control, GQbsow 47 Further cultures of heteroecious rusts, I