1010 ANNU/IL REPORTS OF DEPARTMENT OF AGRICULTURE. 



Page. 



Wood, distillation producta, uses 83 



studies 41(M1 1 



drying, studies 407 



physical properties, investigations 406 



preservation, work 408-410 



preservatives, studies 400 



jnilp, investigations 411-412 



strength tests, work 407-408 



substitution, investigations 414 



utilization, investigations 413-414 



Woodpeckers, habits, beneficial and injurious 534-53"} 



injury to trees 119 



value to fanners 118 



Woods, reference collection, note 414—415 



Wool, classification studies, proposed work for 1912 209 



Wooly apple aphis, investigations 512 



Wyoming, drainage surveys, 1911 708 



elk, feeding and protection 121-122, 545-546 



Jackson Hole, preservation of elk 121-122 



lip-and-leg ulceration of sheep, quarantine released in 1911 196 



sheep breeding, investigations 204, 209 



Yearbook, 1910, description, value for statistics, etc 620 



Yearbooks, insufficient supply....... 637 



Yeast cultures, preparation and distribution 82 



Yuma Experiment Farm, work 299 



Zafpone, a., report as Chief of Division of Accounts and Disbursements, 



1911 551-613 



Zone maps, publication, description, etc 121 



Zoological Division, Animal Industry Bureau, review of work, 1911 250-253 



Zoology, medical veterinary, index-catalogue 253 



Zygobothria nidicola, usefulness against moths 499 



