15-17, 

 22-23 



18 ' DEPARTMENT OF AGRICULTURE BULS. 616-100. 



Bulletin 



Poplar — No. Page. 



tests for shrinkage, strength, etc 676 27 



tulip, blooming season, and honey source. 685 44, 49, 53 



Porto Rico, honey shipments to United States 685 33, 35 



"Post cedar." See Cedar, incense. 



Potato — 



American Giant, comparison with Irish Cobbler, yield, etc 677 20, 24-25 



farms, Jefferson County, Kentucky, management, expenses, 



and profits : 678i 



Potatoes — 

 acreage — 



increase since 1866 695 4 



production, foreign trade, supply, and consumption, bul- 

 letin by George K. Holmes 695 1-24 



consumption, total and per capita, 1849-1916 695 13-16, 24 



growing in Kentucky, labor, seasonal j-equirements 678 9 



f 20-25, 

 30, 31, 



growing, New Jersey soils 677< 38, 41, 



51,52, 

 [ 61,63 

 f 8—13 

 imports and exports 1849-1916, and supply 695j 20-23 



prices and farm values. 1849-1917 695 7-8,19 



production since 1849, and yield per acre and per capita 695 5-7, 19 



seed, requirements per acre and percentage of crop 695 15-16 



statistics, acreage, production, value, exports, imports, and 



consumption 695 19-24 



truck farms, Jefferson County, Ky., management, expenses, and 



profits 678 



use, relation to food habits in various sections 695 3^ 



Potometer, description and management, experiments in plant , 



growth 700 5-14 



Potts, Roy C, bulletin on "Marketing practices of Wisconsin and 



Minnesota creameries " 690 1-15 



Poultry, farm, income in LenaVee County, Mich 694 18 



Price, David J., B. W. Dedrick, and R. B. Fehr, bulletin on 



"Grain-dust explosions" 681 1-54 



Prices — 



butter — 



from creamery (and quality), study, bulletin by G. P. 

 Warber 682 1-24 



r 9—11 



wholesale, relation to jobbing and retail prices 682^ 90-21 



wholesale, relation to standards and grades 682 5-9 



farm, of corn, geographical phases, bulletin by L. B. Zapoleon. 696 , 1-43 

 honey — 



1913-1917 685 35-39 



by States, 1913-1917 685 36-39 



potatoes, received by farmers, 1905-1917 695 7 



Pseudotsuga — 



spp. characteristics 600 19-27 



taxifolia. See Fir, Douglas. 

 "Puget Sound pine." ^See Fir, Douglas. 

 Pumpkin bug. See also Plant-bug. 



Rapeseed, oil, uses, food value, and digestibility 687 13-15 



Raspberries, shipping by parcel post, 1915-16, size of containers 



• and crates, shipping rates, etc 688 13-15 



f 45 50 

 Raspberry, blooming season, and honey source 685< ci' ^4 



15-17, 

 22-23 



51,54 

 Red elm, note 683 2 



Redtop — 



description of grass and seed 692< -, „ i9-2() 



