INDEX. 649 



Cotton — Continued. Page. 



production, costs 570 



reports by Bureau of Crop Estimates, requirement by Congress 407 



varieties, improvement 32, 161-165 



warehouses, regulations administration 560-561 



warehousing investigations 562 



waste and bagging, importation regulations 628-631, 640 



( 'otton seed — 



Hawaiian and Porto Rican, entry restrictions 623, 638 



marketing 551 



oil, fatty acids, study 268 



products, importations, regulations 628-631, 638 



Council of National Defense, service of Chief of Crop Estimates 400 



County agents. See Agents, county. 

 Cowpeas — 



new variety, \-ield8 in Hawaii 459-460 



selection and tests, work \nth hybrids 189-195 



Cows — 



abortion, studies 136-137, 154 



dairy — 



diseaseB, control work 109 



feeding experiments 117 



inbreeding, experiments, results 116 



Cow- testing associations, numbers and work 108-109 



Coyotes, control on ranges 345-346 



Cranberr\- — 



disease investigations and control 218 



insect investigations 316 



Cream, testing for disease germs 155 



Creameries — 



development and improvement Ill 



increase in Southern State 107 



Creamery — 



by-products, utilization studies 115-116 



Grove City, products and output 11], ]]2 



Credit, farmers, study 21 



Cronartium ribicola, injury to pine, and control 211-215 



Crop — 



Estimates Bureau — 



consolidation with Markets Bureau, recommendation 16-17 



field work 415-420 



prosrram enlarged to meet demands 422^26 



report of Chief 405-426 



work 440 



reporting board, work 406 



reports, foreign, needs of service 409 



rotations, studies 33 



Crops — 



acreage — 



and production. 1914-1920 5-7 



expansion during war 23 



acreages, increase in South since 1909 467 



breeding investigations 161-183 



destruction by animal pests, losses and control 344, 347-364 



estimates, accuracy in comparison with census reports 420-422 



improvement, by selection, development, and introduction 31-34 



losses from diseases 27 



new, introduction and extension 183-186 



production — 



costs, studies 19-20, 569-571 



1920. remarks by Secretary 3 



records, foreign and domestic, work 408-411 



reporting— 



by county agents, limitations 420-421 



service importance and need of expansion 17-18 



reports, work of 407^08 



24435— AGB 1920 42 



