INDEX. 15 



Bulletin No. Page. 



Storing bulbs, directions 797 14-18 



Sulphur ore, imports, 1909-1913 798 25 



Sulphuric acid, materials used in manufacture 798 4-5 



Tailor fish. See Bluefish. 



Tarweed, indicator of overgrazing of range s, notes 791 45, 46, 48 



Teachers, suggestions for lessons on potatoes, surveys and home 



projects 784 2-24 



Teal, species in sandhill region of Nebraska 794 23-24 



Telenomus ashmeadi, parasite enemy of grain bug, description 779 28-31 



Tempering wheat, methods and results on moistm-e content. ..... 788 2-3, 6-10 



Tennessee, phosphate rock production and marketing, 1918 798 5, 6 



Terns, species in sandhill region of Nebraska 794 32-33 



Texas, duck-poisoning investigations 793 2 



Thistles, spraying for grain-bug control 779 32 



Timber, protection from injury by grazing stock 790 6, 66-70 



Toads, value in control of grain bug 779 * 32 



Tobacco dust, use against rose midge 778 6-8 



Tomato — 



seed, oil from, digestion experiments 781 14-1 5 



seeds, oil from, recovery 781 2 



Tomcod fish. See Rockfish. 



Tongue fish. See Trout, lake. 



Toxic gases, use in control of peach-tree borer, bulletin by E. B. 



Blakeslee 796 1-23 



Trails, relation to spread of whorled milkweed 800 7, 8 



Trameies pini, injury to pine trees 799 3, 15, 23 



Tree, injuries, relation to infection with fungus rots 799 13-15 



Treefish. See Rockfish. 



Trees, injury by fumigation with para-dichlorobenzene 796 15-21 



Trout- 

 lake — 



cold-storage holdings, 1917 and 1918, by months 792 44, 45-46 



occurrence, and local names 792 45 



See nlso Weakfish. 

 Tuladi fish. See Trout, lake. 

 Tulip- 

 bulbs, cleaning and drying 797 19 



planting depth, notes 797 9, 10 



Tulips- 

 fire disease, description and spread 797 34-35 



growing in United States (and hyacinths and narcissus), bulle- 

 tin by David Griffiths and H. E. Juenemann 797 1-50 



injury by mosiac disease 797 36, 45-46 



treatment after flowering 797 10, 11 



varieties, list and descriptions 797 41-46 



f 3*^ 3.3 35 



Turkeys, cold-storage reports, 1917-18 776j g^' ^"y ^g 



Utah, duck poisoning investigations i J93 2 



Valgren, V. N., bulletin on "Prevailing plans and practices among 



farmers' miitual fire insurance companies " 786 1-16 



Vegetation, development stages and plant types on ranges 791 2-54 



Velvet-top fungus, description and injury to pine trees 799 3-4, 14, 23 



Violet, tongue-leaved, indicator of overgrazing of range, notes 791< "^g' "^^^ ^^ 



Virginia — 



f 8 11 12 



bulb growing, notes 797j ' -j^| £g 



locust stands, natural growth, freedom from borers 787 3-5 



Ward, W. F., Dan T. Gray, and E. R. Lloyd, bulletin on "Fatten- 

 ing steers on summer pasture in the South " 777 1-24 



[ 3,6,12, 



)"{ 15-r " 



Washington, bulb growing 797j 15-19,27, 



(_ ^y, o4 



