1919] 



INDEX OF SUBJECTS. 



931 



Bermuda grass — Page, 

 breeding experiments, Okla. . . 624 

 hay, mineral constituents, di- 

 gestibility, Tex 769 



pasture experiments, Okla 32 



seed, sulphuric acid treatment 234 



Beverages — 



and vinegars, homemade 118 



bottled, sugar substitutes in 68 



Bhringi, description and culture 231 



i'.iiiHographical mediums, scientific, 



as affected by the war 304 



Bibliography of — 



agricultural statistics 594 



ammonium sulphate 221 



Anteonime 265 



anthrax serum 84 



ants 547 



Azotobacter, Iowa 619 



bats of California 853 



birds, game, of California 640 



Buprestis 260 



Chermesidae 262 



cigarette beetle, U.S.D.A 759 



color In relation to chemical con- 

 stitution 505 



conifer rusts 645 



cotton bollworm, pink 857 



Cyrtida? 757 



field experiments, standardiza- 

 tion 823 



food economy 559 



foods, dehydrated 864 



galls, insect 554 



grape curculio, U.S.D.A 257 



ground water 785 



Insect wings 352 



insects, social habit 553 



lactose 415 



larch insects 453 



Lumbricida? 267 



Massachusetts College 595 



milk, dried 379 



natural history of District of 



Columbia 160 



Ophidia, wounds and dlseasi 55 



pentosans, determination I 1 1 



physiology 869 



Pimpla pomorum 65 



plant diseases 47 



potash from blast furnaces ami 



cement works 128 



potash, production in 1917 725 



protozoa, intestinal 187 



railroads, agricultural develop- 

 ment work 488 



rats 546 



rural church, community serv- 

 ice 390 



sanitation 594 



silage, methods of treatment 116 



soil aldehydes 22 



soils, sugar inverting activity.- 124 



Strepsiptera 266 



streptococci 184, 881 



sugar cane diseases 157 



Bibliography of — Continued. Page. 



Taphfina communis ami T. 



l>runi, Mont 



Thysanoptera of Florida 353 



transportation of perishable 



products 489 



Tropics, magastaa artftdei on 687 



vocational education 196 



weed growth 832 



wheat. Russian 



Blcarbonates — 



determination 1 12 



determination in hypochlorite 



solutions 809 



Bile, food accessories in l'71 



Billhugs, control, U.S.D.A <.:.:, 



BiocolloidS. (tfee Colloidal mix- 

 tures.) 

 Biological survey of Washington, 



Wjash 753 



Biomyia cleodivora n.sp., descrip- 

 tion 853 



Birch — 



borer, bronze, on white birch__ 552 



case-bearer, notes 551 



gray, relation to white pine re- 

 generation 842 



leaf-hopper, yellow, notes ."7 



Bird enemies of white grubs 547 



Birds — 



destructive, control 254 



game, of California 646 



injurious in Norfolk and Ox- 

 fordshire 255 



maggot-infested 351 



migration i!. r ,4, 646 



nestling, parasitism by fly 



larva* 047 



nomenclature 350, two 



observed near Mineo, Oklahoma- 640 



of Australia, food bai>its 351 



of British Guiana Botanic Gar- 

 dens 



of Connecticut, notes .",."1 



of Forrester Island, notes .".", l 



of Massachusetts, notes 847 



of North America, notes . . 851 



reproduction in. physiology 664 



secondary sexual characters 871 



survey at Washington, D.C 846 



useful, of Minnesota 2."it 



BSefoI, textbook and guide 2.".~i 



winter, handbook 254 



Black medic — 



culture experiments 136 



liming experiments 822 



variety tests 232 



Blackberries — 



breeding and testing in Minne- 

 sota 148 



breeding experiments, Minn 742 



breedinc experiments, Wash 7to 



training. Wash 743 



utilization 268 



Blackberry — 



diseases, notes 158 



