8 DEPARTMENT OF AGRICULTURE BULS. 826-850. 



Bulletin 



No. Page. 



Hemlock, lumber production, 1918, by States 845 22-23, 43 



Herbert, F. B., bulletin on "Cypress bark scale " 838 1-22 



Herds, beef cattle in South, management 827 20 



Hickory, lumber production, 1918, by States 845 36, 47 



Hippodamia convergens, occurrence, remarks 843 6 



Honey dew, secretion by aphids, notes 826 77-79 



Hormaphidinae — 



genera, description and key 826 9, 83-84 



tribes and genera, descriptions and keys 826 8, 9, 81-87 



f 19-24 33 



Hot water, control of wheat nematodes 842< o^ ' o4 



Hotbeds, use on small farms near Washington, D. C 848 15-16 



f 6-10, 13, 



Idaho, lumber production, 1918, by mills and by woods 845J 9 q' „-i go' 



I 40,42-47 



Illinois, lumber production, 1918, by mills and by woods 845< , fi 49-47 



Index — 



fire insurance companies, suggestions 840 15-16 



policy holders, system for farmers' fire insurance companies. . 840 15-16, 17 



f 6-10, 13, 



I T ft 99 9^ 



Indiana, lumber production, 1918, by mills and by woods 845| J otToo' 



' 42-47 



Ingerson, H. G., and G. A. Runner, bulletin on "Control of the 



grape-berry moth in Northern Ohio' ' 837 1-26 



Insects — 



f 3—4 13—14 



carriers of cucurbit wilt, experiments 828< ' _,-, ,A 



cattle, control 827 47-48 



pollinators of sweet clover 844 14-22 



Insurance — 



fire, farmers' mutual companies, records, bulletin by V. N. 



Valgren 840 1-23 



publications, list of farmers' mutual companies 840 23 



Iowa — 



{9 c 

 Sfi-45' "Q 



[ 6-10,14, 



lumber production, 1918, by mills and by woods 845< 16, 37, 



I 42-47 



State College at Ames, studies on sweet clover seed production. 844 2-25 



Irrigation, loss of water, relation to capillarity, studies 835 1-69 



31-32^37 



Kansas — 



Barton County, wheat farming, rent contracts 850 2-13 



f 6-10, 14, 



lumber production, 1918, by mills and by woods 845< 16, 37, 



I 42-47 



western, description, soil and climatic conditions 836 2-10 



Keenan, George L., and Mary A. Lyons, bulletin on "The 



microscopical examination of flour' ' 839 1-32 



I 6-10,13, 



I 1 f\ 99 9fi 



Kentucky, lumber production, 1918, by mills and by woods 845 ' 9 g* ,!' 



[ 33-38 



Kerosene, use in control of apple-tree borer, injury to trees 847 37 



Klamath Project, Keno Canal, spillway, description 831 8-9 



Kutter's formula — 



value of n, discussion 832 1-2, 58 



water flow in channels, value to engineers 832 1-2 



