484 ixDEX. 



Citrus — Page. 



canker-resistant breeding 139-140 



products, work of Chemistry Bureau 204 



quarantine for citriis canker 417-418, 429, 430 



diseases, control, investigation 136, 137, 139-140 



fruits, bud selection 140-141 



Climatology, Weather Bureau, work, 1917 52, 53 



Clover insects, control work 239 



Clubs- 

 boys' and girls' — 



enrollment, regular and emergency 14 



South, meml^ership and work 340-343 



work in meat production 67, 78, 80 



women's, home demonstration work in South 341-342 



Codling moth, investigations and control 230 



Cold waves, 1917, details and results of warnings by Weather Bureau 50 



Cold-storage — 



holdings, monthly reports 462 



houses, value 438 



Colorado, marketing work 448 



Commission house, accounting system 434 



Community activities, fairs, etc., investigations 451-452 



Concrete, investigations, 1917 373-374 



Confectionery adulteration, court decision 400 



Contracts, Department bureaus and di\dsions, preparation 408 



Cooperation, farm management. Southern States, investigations 480 



Corn — 



belt, problems, studies 479 



earworm, outl^reak, 1917 238-239 



inspection work, 1917 39 



seed, purchase for farmers 21 



sweet — 



matiuity testing, new method 153-154 



strain resistant to corn worm 154 



varieties, profitable, studies 144 



Cotton — 



Arizona-Egyptian, spinning tests, comparisons with other varieties 455 



belt, problems, studies 478-479 



crop, estimates of Crop Estimates Bureau, accuracy 30:3-304 



diseases, investigations, 1917, and control demonstrations 132-133, ]34 



districts, live stock, experiments and demonstrations 127-129 



Egyptian, Arizona, extension 142, 146 



Futures Act, administration 384, 405, 463-465 



growing — 



in arid region 143 



in Southwest, extension 145-147 



under irrigation, method in Arizona 142-143 



handling and marketing, studies and demonstralions. 440-441 



importations, regulations and c^uarantine restrictions 42.5^27, 429, 430 



injury by pink bollworm, prevention methods 40-43 



insects, investigations 232-233 



Meade, substitute for Sea-Island in Georgia and Florida 146 



Mexican, quarantine for control of pink bollworm 382 



products, Mexico, quarantine on account of pink bollworm. 417, 419-420, 429, 430 



root-knot, control work, 1917 134 



stalk, paper making, investigations 154-155 



standards, forms, preparation, distribution, and sales, 1917 464-465, 472 



standards, investigation and demonstrations 453-454 



staple, studies 441 



testing, manufacturing and spinning tests 454-456 



warehouses, accounting systems, publications 434 



warehousing, investigations 441-442 



Cottonseed — 



marketing, studies 442-443 



Meal — 



feeding tests with work stock 77 



improvement, result of Chemistry Bureau work . , 207 



