INDEX. 



13 



Bulletin 

 Pastures— No- 

 native, cut-over pine lands in South, carrying capacity 827 



Piney Woods region, conditions and possibilities 827 



temporary, in South, oats, vetch and rye 827 



Peanut hay, value in South 827 



Peanuts, meal for cattle feed in South, value 827 



Pear trees, injury by roundheaded apple-tree borer 847 



Pemphigini, genera, description and key 826 



Pennsylvania, lumber production, 1918, by mills and by woods. . . 



23 



20-34 



29-30 



35 



42 



13 



68-73 



-11, 13, 



21-25, 



30, 33, 



3, 42-47 



Pentalomna, genera, description and key 826 8, 59-61 



Pest, greenhouse, chrysanthemum midge 833 1-13 



Phloeosinus spp., injury to cypress 838 7 



Phyllaphidina, genera, description and key 826 6, 23-25 



Pierson, Albert H., and Franklin H. Smith, bulletin on "Pro- 

 duction of lumber, lath, and shingles in 1918 " 845 1-47 



Pine — 



lands, cut-over, South, use for production of beef cattle, bul- 

 letin by F. W. Farley and S. W. Greene 827 1-51 



lodgepole, lumber production, 1918, by States 845 38, 44 



long-leaf yellow, distribution, map of area cut over in South . . 827 4, 15 



sugar, lumber production, 1918, by States 845 35, 44 



western yellow, lumber production, 1918, by States 845 23, 43 



white, lumber production, 1918, by States 845 20-21, 43 



yellow, lumber production, 1918, by States 845 19, 42 



" Piney Woods " — 



cattle industry, conditions, etc 827 6-31 



region, location and extent, survey 827 2-5, 14-19 



Pleurotropis chalcidoid, parasite of Tracheitis tabidus, studies. . . . 834 12 



Policy, fire insurance, records , . 840 2-7 



Pollen, sweet clover, description and germination 844 9-10 



Pollination, studies in sweet-clover seed production 844 1-25 



Polychrosis viteana. See Moth, grape-berry. 



Poplar, yellow, lumber production, 1918, by States 845 30, 46 



Porto Rico, sugar-cane disease, history 829 1-2 



Potato beetle, Colorado, occurrence, remarks 843 6 



Precooling, fruits, effect on keeping quality, tests 830 2-6 



Prociphilini, genera, description and key 826 9, 75-77 



Pseudococcus spp., injury to cypress 838 7 



Pterochlorina, genera, description and key 826 17-19 



Pterocommina, genera, description and key 826 7, 35-36 



Pumps, use in milk plants, advantages and disadvantages 849-j ' ' ~ ~A 



Ramser, C. E., bulletin on "The flow of water in dredged drainage 

 ditches " 832 1-60 



Rand, Frederick V., and Ella M. A. Enlows, bulletin on "Bac- 

 terial wilt of cucurbits " 828 1-43 



Range, fires, injury to pastures in " piney woods " section 827 23-26 



Raspberries, cooling, effect on resistance to wounding, tests 830 1, 4, 5 



Rayas amarillas. See Mosaic disease. 



Reclamation Service, spillways, siphon type 831 16, 28-31 



Records, systems for farmers' mutual fire insurance companies, bul- 

 letin by V. N. Valgren 840 1-23 



Redfield, H. W., bulletin on "Examination of frozen egg products 

 and interpretation of results " 846 1-96 



Redwood, lumber production, 1918, by States. 845 27, 43 



Refrigeration, milk in city plants, requirements and methods 849J ' ^k tk 



Renting — 



cash system, percentage of tenants in wheat belt 850 3 



share sys,tem in wheat belt 850 3-10 



systems — 



in wheat belt 850 15 



shares and cash rents : 850 3-7 



