6 DEPARTMENT OF AGEICULTUEE BULS. 426-450. 



Bulletin Page. 

 Dyes — No. 

 food-coloriug substances, separation and identifica- 

 tion 448 1-56 



numbers by which designated in published tables 448 56 



Durability, sugar-pine superiority 426 12 



Electrolytic — 



cleaning silver, principle of operation 449 4 



cleaners, descriptions and tests 499 3-11 



method of cleaning silver, study, bulletin by H. L. 



Lang and C. F. Walton, jr 449 1-12 



Electrolysis, use in cleaning silver 449 1-12 



Emmer, production tests, Cheyenne Experiment Farm, 



1913-1915 430 25-26 



Europe, importations of soy beans and products, 1908- 



1914, quantity and value 439 6-7 



False blossom — 



control in cranberry plants 444 5 



cranberry, bulletin by C. L. Shear 444 1-8 



description, origin, and distribution . 444 1-3 



occurrence in cranberry plants, cause, discussion 444 4^5 



Felling, crew make-up, operation and wages, California 



pine region 440 13-17 



Fertilizers, use on lemon grass, experiments 442 3-4 



Filters, virus, descriptions 431 27-30 



Fir, white, stands in California pine region, volume and 



associated species 440 3-4 



Fire, injury to sugar pine 426 4 



Flat-headed borers. See Borers, flat-headed. 



Flax, varietal experiments, Cheyenne Experiment Farm, 



1913-1915 430 33-36, 39 



Flea-beetle — 



description, life history and habits 436 5-16 



desert corn, bulletin by V. L. Wildermuth 436 1-23 



distribution and economic importance 436 2-4 



enemies 436 16-17 



food plants 436 4-5 



remedial measures 436 18-21 



Flour, soy-bean, food value, comparison with other flours 



and corn meal 4.39 11-13 



Flours, wheats grown in northern Great Plains, baking 



tests 4.50 11,14 



Flumes, lumber, requirements, construction, operation, 



and cost 440 89-92 



Fomes — 



laricis, fungi enemy of sugar pine 426 5 



pinicola, injury to sugar pine 426 5-6 



Food plants, potato-tuber moth, list 427 14-15 



Food-coloring substances, separation and identification, 



bulletin by W. E. Mathewson 448 1-56 



Foods, colored, treatment for color analysis 448 4-8 



Forest Service, protection to private lumber holdings, 



cost per acre 426 36 



Forest trees, flat-headed borers affecting, bulletin by 



H. E. Burke 437 1-8 



Forests — 



California National — 



fire protection, methods 426 34, 36 



stumpage sales and prices 426 24 



National, timber cutting, management, methods, util- 

 ization, etc 426 30-35 



Foulbrood, comparison with sacbrood of bees 431 2-4 



Frost, injury to sugar pine 426 5 



