1920] 



INDEX OF SUBJECTS. 



933 



Books on — Continued, 

 corn, 638. 



dairy record and feeding chart, 17C. 

 dairying, 580. 

 dietotherapy, 201. 

 drainage, 280. 

 drug plants, culture, 838. 

 drugs, useful, 580. 

 earthwork and its cost, 589. 

 electrical power in France, 790. 

 electrophysiology, 819. 

 engineering, civil, 278. 

 engineering, dredging, 887. 

 engineering for land drainage. 280. 

 engineering, waterproofling, 186. 

 entomology, 850. 

 enzyms, 611. 



estimating cost of buildings, 188. 

 evolution, organic, 521. 

 farm animals, 770. 

 farm buildings, 592. 

 farming, 93, 396. 

 fauna of British India, 50. 

 feeding stuffs, concentrated, 170. 

 feeding stuffs, microscopic control of, 



170. 

 feeding stuffs, wartime, 170. 

 ferns, 148. 

 fig recipes, 261. 

 flowers, cut, industry, 838. 

 food chemistry, 10. 

 food industries of France, 260. 

 food inspection and analysis, 31. H. 

 food poisoning, 261. 

 food production in Denmark, 292. 

 food regulations, in Italy, 65. 

 food resources of United States, 60. 

 food substitutes in Germany, 204. 

 forest policy of United States, 746. 

 forestry, 343, 442, 542, 651. 

 forests and forestry in West Africa, 



839. 

 forests in French colonies, 651. 

 fruit culture, fancy, 743. 

 fruit growing, 835. 

 fruit preserving, 15. 

 fruits, small, 40. 

 gardening, 697, 741, 833, 834. 

 gardens, form and design, 236. 

 gardens, monthly working calendar for, 



236. 

 gardens of celebrities, 342. 

 gases, industrial, 627. 

 geology, agricultural, 719. 

 heredity, 632. 

 household physics, 495. 

 housekeeping, 798. 

 insect behavior, 50. 

 insect l.fe on sewage filters, 853. 

 Insects, 659. 

 irrigation, 387. 

 land and labor in India, 293. 

 leather chemistry, 317. 

 live-stock judging, 494, 697. 

 live stock, types and market classes, 697. 

 lumber and its uses, 344. 



Books on — Continued. 



manures, 621. 



medicine and surgery, industrial, 564. 



meteorology, 208. 



milk, clean, production, 679. 



motor trucks, design and construction, 

 285. 



motor vehicles, 187. 



oils, vegetable, 240. 



organic evolution, 521. 



Orthoptera of northeastern America, 

 851. 



parasites and parasitosis of domestic 

 animals, 580. 



rieat industry, 129. 



physiology, chemical, 365. 



pigeons, evolution, heredity, and be- 

 havior, 67. 



pigs, Duroc-Jersey, history, 71. 



plants, flowering, 148. 



plants, wild, uses, 049. 



potash production in United States, 728. 



potatoes, culture. 829. 



poultry raising, 174, 494, 676. 



prosperity in 1920, 92. 



protozoology, 659. 



quit-rent system in American colonics, 

 694. 



rabbits, raising, 174, 873. 



road materials, bituminous, 186. 



roads, 481. 



roses, climbing, culture, 838. 



rural communities, 894. 



rural development, 894. 



rural schools, consolidation, 297. 



rural science, 195. 



soil survey mapping, 887. 



soils, 621, 719. 



sweet peas, 441. 



tractors and implements for 1020, 287. 



trees, economic, in Great Britain, 344. 



vegetable gardening, 236. 



veterinary medicine, 76, 683, 797. 879. 



walls, concrete retaining, construction, 

 485. 



weather, 208, 



wheat culture in Manitoba, 640. 



woodlands, English, management, 442. 



woods of United States, 443. 

 Borax in fertilizers — 



determination, 312, 613. 



effect on corn, Ind., 325. 



effect on corn and cotton, S. C, 126. 

 Bordeaux mixture — 



adhesiveness, N. H., 842. 



analyses, N. J., 37. 



composition, 444. 



effect on plants, N. 11.. 44. 



effect on potato plants. 547. 



fungicidal value, 544. 



ordinary v. casein, 550. 



preparation and use, 155. 



use of white arsenic in, 850. 



with soap, fungicidal value, Mass., 846. 

 Bordeaux-oil emulsions, spraying experl- 

 meuts, 157. 



