INDEX. 7 



Farm — Continued. Bulletin 



lands— No. Page. 



prices, increase in Iowa, 1919, causes, investigations S74 3-45 



values in Iowa, bulletin by L. C. Gray and O. G. Lloyd_ 874 l-i5 

 management, relation to woodlands, lesson for rural 



schools 863 32-33 



receipts, sources, amounts, and summaries, Pennsylvania is iq' 99' 



farms 853 j lb ' 24 36 



tenure, conditions in northwestern Pennsylvania 853 31-32 



Farmers — 



elevator organizations, forms, advantages of different 



types, etc 860 2-5 



income from outside sources 853 30!-31 



incomes in Iowa, 1913, 1915, 1918, 1919 874 20-33 



Iowa, net worth and earning power, data 874 33-37 



Farms — 



apple, western New York, investments, acreage, etc 851 5-7 



general, receipts, expenses, etc., comparison with dairy , 71 a 



farms _ 853 j 13 _ 19> 23 



Iowa, buying and selling during " boom " of 1919 874 8-9 



organization and management, northwestern Pennsylvania, 



bulletin by Earl D. Strait and H. M. Dixon 853 1-32 



Pennsylvania, distribution of area, capital, live stock, etc. 853 12-16 

 Feed — 



dairy cows, kinds, quantity and prices, average cost per 



ton 858 19-20 



steers, cost and gains 870 14-20 



units, computation for various feeds, note 853 27 



Fence posts, treatment, study for rural schools 863 16 



Fertilizer, constituents in cow manure, determination 858 24-26 



Fertilizers — 



apple orchard, use, cost and results 851 14-18 



tomato growing, practices in Florida 859 3-4 



use on farms in northwestern Pennsylvania 853 28-29 



Finele, F. C, discussion of flow of water in concrete pipe 852 83-96 



Fire — 



control, for prevention of injury and diseases of trees 871 49-50 



injury to incense cedar 871 38-39 



protection for woodlands, lesson for rural schools 863 20-23 



Fires, forest, prevention rules 863 20,22 



Flickers, relation to starlings 868 47, 50, 51 



Flies — 



destruction by starlings 868 24-25, 65 



f 9,15,21, 



food of shoal-water ducks 862 { 27, 30, 36, 



I 48, 63 

 Florida — 



Gainesville, castor-oil plant, consumption of castor beans, 



output, etc., 1910-1919 867 5 



tomato — 



growing and shipping to market, practices 859 3-7 



industry, note 859 1-2 



Flour — 



fumigation with hydrocyanic acid 872 27 



mills, insect control, bulletin by E. A. Back 872 1-40 



moth, Mediterranean, introduction, life history and control 872 2^0 



sacks, handling to avoid insect infestation 872 8-10 



Fly paper, castor-oil ingredient 867 39 



Forties igniarms, injury to trees and rapidity of spread 871 20^22 



Food — 



[ 3,11,16, 



duck, determination bv stomach content 862 { 18, 23, 28, 



, [ 31,38 

 habits, American shoal-water ducks, seven species ; bulletin 



by Douglas C. Mabbott 862 1-68 



