INDEX. 6 



Bulletin 

 No. Page. 



Cicuta, spp., poisonous to stock, description, distribution, andinjury. 575 13-14 



Coad, B. F., and T. F. McGehee, bulletin on "Collection of weevils 

 and infested squares as a means of control of the cotton boll weevil 



in the Mississippi Delta " 564 1-51 



Collins, W. D., and W. W. Stockberger, bulletin on "The pres- 

 ence of arsenic in hops." 568 1-7 



Colorado, cement factories, potash content of materials and loss in 



manufacture 572 4 



Colts, raising, profit and loss in cost of keeping horses 560 12-13 



Concrete foundations, use in lumber piling 552 19 



Concretes, road building, specification forms, tests, and sampling 



methods 555 27, 37, 51 



Cooper, M. R., bulletin on "Cost of keeping farm horses and cost 



of horse labor " . 560 1-23 



Cooperating creameries, operation of accounting system 559 12-22 



Corn, samples, conversion of weights into percentages (and other 



grain samples), bulletin by E. G. Boerner .' 574 1-22 



Cotton — , 



(-1 O 1 A 0£> 



plant, shaking for weevil collection, effect on plant 564< „„ oq aA 



seed, production after weevil and square collections 564< „(T Q-f 



squares, weevil infested, collection as means of boll-weevil con- 

 trol in Mississippi Delta 564 3-51 



Cottonseed meal, feed for egg production, experiments and value.. . 561 13-14 



Cottonwood spp., tests for mechanical properties, results 556 29, 39 



Coyotes, injury to sheep on Minidoka project, control studies. . . 573 20-21 



Cranberry — 



beds, treatment for control of girdler . -. 554 13-19 



girdler — 



bulletin by H. B. Scammell.... 554 1-20 



control measures, natural enemies, etc 554 12-19 



enemies and control measures 554 12-19 



history, distribution, and feeding habits 554 2-4 



life cycle and habits 554 5-13 



Cranbus hortuellus. See Cranberry girdler. 

 Creameries — 



accounting conditions and requirements 559 4-12 



cooperative, operation of accounting system 559 12-22 



country — 



accounting records 559 1-37 



accounting records, bulletin by John R. Humphrey and G. 



A. Nahstoll 559 1-37 



operation methods 559 3-4 



Creamery, organization types 559 2-3 



Crop — 



acres per horse, relation to total crop acreage 560 22 



rotation, tobacco growing, for control of wilt, experiments 562 10-17, 19 



Crossties, seasoning in air 552 12-17 



Cypress, spp., tests for mechanical properties, results 556 33, 43 



Death camas, poisonous to sheep, description, distribution, symp- 

 toms, and control treatment 575 14-15 



Delphinium spp. See Larkspur. 

 Dermanyssus gallinae. See Mite, chicken. 



Docking, lambs, time and method 573 13-14 



Dogs, sheep killing, control methods 573 20-21 



Dugoldia hoopesii. See Sneezeweed, western. 



Durum wheat, qualities, comparisons with other wheats 557 5-28 



Earwig, European — ■ 



and its control, bulletin by D. W. Jones 567 1-12 



description, life history, and control 567 2-12 



habits, spread, and enemies 566 5-7 



Earwigs — 



control methods, poison, spraying, and trapping 566 8-12 



parasites and natural enemies ' 566 7 



