INDEX. 9 



Bulle- 

 Farm— Continued. tin No. Page. 



management,practice of Chester County, Pa., bulletin by W. J. 



Spillman, H. M. Dixon, and G. A. Billings 341 1-99 



minimum efficient unit, requirements, etc 341 54-55 



operations — 



cost, relation of machinery cost, western New York 338 23-24 



machinery cost in western New York, bulletin by H. H. 



Mowry 338 1-24 



organization, investigations in Chester County, Pa 341 81-99 



size — 



relation to efficiency, Chester County, Pa 341 60-63 



relation to labor income, Chester County, Pa 341 55-60 



Farming — 



diversity index, computation and relation to labor income 341 81-83 



intensive, development in Chester County, Pa 341 14 



machinery cost of operations in western New York, bulletin by 



H.H. Mowry 338 1-24 



tenant systems in the Yazoo-Mississippi Delta, a study, bulletin 



by E. A. Boger and E. A. Goldenweiser 337 1-18 



types — 



Chester Countv, Pa 341 15-53 



conditions affecting 341 52 



Farms — 



capital distribution, Chester County, Pa 341 65-66 



income from various sources, per cent of total, Chester County, Pa. 341 24-30 



size — 



relation to use of labor-saving equipment, Chester County, 



Pa 341 64-65 



utilization of land and value, Chester County, Pa 341 12-14 



tenant — 



size, relation of tenure, Chester County, Pa 341 69-70 



types, labor income, yield, etc., Chester County, Pa 341 70-73 



Feed— 



cherry-kernel meal , comparison with other feed 350 20-22 



cost per animal unit, Chester County, Pa 341 90-92 



Feedstuff's, production and consumption on farms, Chester County, 



Pa 341 90-93 



Feldspars, orthoclase and plagioclase, nature and value for road- 

 building 348 7 



Fertilizer — 



blueberry culture, formula 334 15 



effect on yield and irrigation of crops, experiments in Idaho 339 24-25 



formula for use in growing cereals 336 9 



Finches, occurrence in Porto Rico, variant names, habits and food. . 326 111-113 

 Fir- 

 balsam — 



(and spruce) of the Rocky Mountain region, bulletin by 



George B. Sudworth 327 1-43 



See also Balsam fir. 



cones, caching in water by squirrels, instance 327 37 



f 35-40, 



pulp, experiments and tests, comparison with other woods 343< 86-95, 



[ 125-130 

 Firs, balsam — 



botanical history 327 17-20 



descriptions, flowering and seeding habits, economic importance, 



etc.... 327 17-20 



species in Rocky Mountain region, occurrence, variant names 



and growth habits 327 17-43 



Flamingo, occurrence in Porto Rico, notes 326 27-28 



Flash pasteurization of milk, process 342 4 



Flies, house — 



longevity _ 345 12 



temperature requirements for propagation 345 12 



Florida cserulea cserulescens, occurrence in Porto Rico, habits and 

 food 326 23-24 



