AGRICULTURAL INDEX 



651 



Labor saving devices — Continued 



Some methods and equipment for time sav- 

 ing. Dakota F 39:1919 D 1 '19 ^ . 



Switching from gas to electricity. S. De Brie, 

 il Country Lite 36:90+ Jl '19 



Tiling devices save money. C. M. Baker, il 

 System on the Farm 4:240 Ap '19 



Time-saving equipment for handling grow- 

 ing chicks. G: K. Shoup. il Western Wash 

 A<^ Exp B V 8:24-8 My "20 



Worth-while labor-saving otflce and poultry 

 farm methods. J. W. Parks, il Reliable P 

 J 27:902-}- D '20 

 See also Household appliances 



Laboratories 



Efficient arrangement in cooking labora- 

 tories. C. A. Morton. J Home Econ 12:201- 



5 My '20 



Methods for close automatic control of incu- 

 bating temperatures in laboratories. J: T. 

 Bowen. il plans U S Ag B 951:1-16 '21 

 Research laboratory established by exchange. 

 Cal Citrograph 5:217 My '20 



See also South Dakota animal health 

 laboratory; United States forest products 

 laboratory 

 Labrador 

 Observations on diet in Labrador. V. B. Ap- 

 pleton. J Home Econ 13:199-203 My '21 

 La Bruere, Boucher de 

 Sketch. J. C. Chapais. (In Rep., Quebec 

 Dairymen's assn., 1917, p. 26-9) 'IS Quebec 

 Ag Dept 

 Lac 

 Lac-yielding trees of Indo-China and their 

 products. C. Crevost and others. Int R !Sci 



6 Prac Ag 10,no 2:187-9 F '19 



Report on lac and shellac. H. A. F. Lindsay 

 and C. M. Harlow. (Indian forest records, 

 V. 8,pt. 1) 162p il maps Rs 2-12-0 '21 In- 

 dia Supt. of govt, ptg., Calcutta 



Shellac trade; Indian cess for research. Lon- 

 don Times Trade Sup 9:85 O 15 '21 

 Lac insects 



Lac-producing insects in the United States 

 (hemiptera; coccidae). G. F. Ferris. J Econ 

 Entom 12:330-3 Ag '19 



Lace 



Revival of lace. S. De Brie, il Country Life 

 37:104+ F '20 

 Lace bugs 

 Lace bug on hawthorn, corythucha bellula 

 Gibson. W. H. Wellhouse. il J Econ En- 

 tom 12:441-6 D '19 

 New corn insect from California (heterop- 

 tera). C. J. Drake. J Econ Entom 11:385 Ag 

 '18 

 Lachenalias 

 Freesias and lachenalias. J. Jacob. Royal 



Hort Soc J 45:29-38 O '19 

 Indoor plants; lachenalia pallida. J. Jacob, il 



Gard Chron (Lond) 69:283 Je 11 '21 

 Lachenalias. il Gard Chron (Lond; 69:117 Mr 

 5 '21 

 Lachnosterna. See June bugs; White grubs 

 Lackawanna county dairymen's improvement 

 association 

 Dairy farmers unite; year's work. L. Hof- 

 fer. N Y Prod R 49:974 Mr 17 '20; Same. 

 Rural N Y 79:831 Ap 24 '20 

 Lackawanna county. Pa., dairymen's im- 

 provement association. L. Hoffer. Rural 

 N Y 79:831 Ap 24 '20 

 Lactation 



Conformation and its relation to the milk 

 producing capacity in Jersey cattle. J: W. 

 Gowen. bibliog J Dairy Sci 3:1-32; 4:359-74 

 Ja '20, S '21; Same cond. Maine Ag Exp 

 B 284:298-300 '19; Abstract. Maine Ag Exp 

 Doc 538-1-12 '20 

 Contribution to the physiology of phosphorus 

 and calcium metabolism as related to milk 

 secretion. E. B. Meigs and others. Int R Sci 

 & Prac Ag 10,no 10:1173-4 O '19 

 Correlation between milk yield of one lacta- 

 tion and that of succeeding lactations. J: 

 W. Gowen. Maine Ag Exp B 289:121-32 '20 



Correlation between the butter-fat percentage 



of one lactation and succeeding lactations in 



Jersey cattle. J: W. Gowen. Maine Ag Exp 



P. 291:145-56 '20 

 Daiiv herd wisdom. Live Stock J 92:171 Ag 



13 '20 

 Do drugs increase milk production? A. C. 



.McCandlish. Hoard's D 57:708 Ap 25 '19 

 Economical milkers. G. Holt Thomas. Live 



Stock J 92:424 O 22 '20 

 Eitects of aKe on milk production. L. L. 



Runmiell. Ohio F 145:366 F 28 '20 

 Elaboration of milk by the cow. Hoard's D 



62:59 Ag 5 '21 

 Environment and breeding as factors influ- 

 encing milk production. A. C. McCandlish. 



il J Heredity 11:204-14 My '20 

 Feed consumed in milk production. H. A. 



Hopper and others. Cornell Ag Exp B 398:1- 



15 '18; Same. Cornell Ag Exp Rep 1919, 



V 1:1-15 '20 

 Feeding according to milk yield. Live Stock 



J 93:3 Ja 7 '21 

 Holding up milk. Hoard's D 62:476 N 4 '21 

 How ;i heifer made lier record. M. Sharp, 



il Hoard"? D 60:164 Ag 20 '20 

 How long should cows remain in milk? G. 



Turnbull. Live Stock J 94:345 S 30 '21 

 Influence of barley on the milk secretion of 



cows. F. W. Woll and E. C. Voorhies. Cal 



Ag Exp B 305:325-34 '19; Same cond. Live 



Stock J 90:18 Jl 4 '19 

 Influence of calcium and phosphorous in the 



feed on the milk yield of dairy cows. E: B. 



Meigs and T. E. Woodward. U S Ag B 945:1- 



28 '21; Same cond. J Dairy Sci 4:185-217 My 



Inheritance in crosses of dairy and beef 

 breeds of cattle. J: W. Gowen. il J Hered- 

 ity 11:300-16, 365-76 S-N '20 



Inheritance of quantity and quality of milk 

 production in dairy cows. W. E. Castle. Ag 

 Gaz of Canada 8:492 Jl '21 



Manufacturing of milk. Jersey B 38:824 My 7 

 '19 



Milk production of young cows compared 

 with that of mature cows. J. J. Hooper. J 

 Dairy Sci 4:451-2 S '21 



Milk secretion. Hoard's D 60:1119 Ja 14 '21 



Milking machines on the dairy farm. C. 

 Larsen. Hoard's D 57:600 Ap 11 '19 



On correlation between milk production, fat 

 production, and other associated charac- 

 ters. F. A. Pearson. Am Soc Animal Pro- 

 duction Pro 1917:103-6 '20 



Relation of milk yield to age at first calf. R. 

 C. Towles. Md Ag Exp B 217:227-38 '18; 

 .'^ame. Md Ag Exp Rep 1917-1918:227-38 



Researches into the influence of the nucleo- 

 proteins of the udder on the milk secretion 

 of the cow. R. Giuliani. Int R Sci & Prac 

 Ag 10, no 1:82-3 Ja '19 



Secretion of milk. H. E. Van Norman, il Va 

 Ag Dept B 138:65-9 '19 



Studies in milk secretion; influence of age on 

 milk and butter-fat yield in Holstein-Frie- 

 sian cattle. J: W. Gowen. Maine Ag Exp B 

 293:185-96 '20 



Studies in milk secretion: on the perform- 

 ance of the progeny of Holstein-Frlesian 

 sires. J: W. Gowen and M. R. Covell. 

 Maine Ag Exp B 300:121-252 '21 



Studies in milk secretion on the variations 

 and coirelations of butter-fat percentage 

 with age in Jersey cattle. J: W. Gowen. 

 Maine Ag Exp B 284:291-6 '19 



Studies in milk secretion on the variations 

 and correlations of milk secretion with age 

 in Jersey cattle. J: W. Gowen Maine 

 Ag Exp B 284:287-91 '19 



Variation of Ayrshire cows in the quantity 

 and fat content of their milk. R. Pearl and 

 J: R. Miner, bibliog J Ag Research 17:285- 

 322 S 15 '19; Excerpts. Maine Ag Exp B 

 279:57-64 '19; Excerpts. Maine Ag Exp Rep 

 1919:57-64; Abstract. Maine Ag Exp B 284: 

 285-7 '19 



Variation of butter-fat percentage with age 

 in Jersey cattle. J: W. Gowen. Maine Ag 

 Exp B 290:133-44 '20 



Variation of milk secretion with age in Jer- 

 sey cattle. J: W. Gowen. Maine Ag Exp B 

 286:49-60 '20 



