INDEX. 



29 



Bulletin. 



Potatoes — 



growing on sassafras soils of various types, yield, etc. 



injury by wireworms, notes 



intertilling with wheat, yields, experiments 



sweet, growing on sassafras soils 



Prairie region, eastern United States, forest planting, 



practices, progress, etc 



Preservative treatment, crossties, value 



Prickly pear — 



spineless, description, occurrence, chemical com- 

 position 



use in whitewash 



varieties, chemical composition, etc 



See also Cactus. 



Proteoses, sources in "base goods" 



Prune — 



growing industry in California, note 



thrips. See Pear thrips. 

 Prunes — 



injury by pear thrips, character and extent 



size, prices, etc. , Santa Clara Valley 



yield for Santa Clara Valley 1900-1912, by years... 



Pruning, forest tree, management, caution, etc 



Prunus — 



americana — 



lanata, varieties 



varieties 



angustifolia — 



varians, varieties 



varieties 



watsoni, varieties 



besseyi, varieties 



Jiortulana — ■ 



mineri, varieties 



varieties 



maritima, varieties 



mezicana, varieties 



munsoniana, varieties 



nigra, varieties 



pumila, varieties , 



subcordata, varieties , 



Psathyrellla, genus, characters, description of species, etc. 

 Pulp- 

 hemlock, uses 



mills, price for pulpwood, requirements, note 



Pulpwood — 



ground, price per ten 



hemlock — 



marketing, condition, price, etc 



prices in different regions, comparison with 



other species 



stumpage, price in Wisconsin 



Purine bases — 



isolation from processed fertilizer, method 



sources in "base goods " 



Pyrophorus luminosus, enemy to Lachnosterna larvae... 

 Pyrus betulaefolia, stock for persimmon in San Antonio 

 region 



Quassia — 

 chips — 



formulas for insecticide spray 



use against hop aphis, note 



159 



156 

 157 

 159 



153 



152 



160 

 160 

 160 



158 



173 



173 

 173 

 173 

 153 



172 

 172 



172 

 172 

 172 

 172 



172 

 172 

 172 

 172 

 172 

 172 

 172 

 172 

 175 



152 



152 



152 

 152 



152 



152 



158 



158 

 156 



162 



165 

 165 



21,27,30, 



43, 46, 47, 49 



18 



41,42,43 



21, 31, 47, 49 



3^ 

 14 



15,16 



2 



15-16 



17-19 



16 



16-18 

 9 

 8 



16-18 



5 

 4-5 



6 

 5 

 6 

 6 



5 

 5 

 6 

 5 

 5 

 4 

 6 

 5 

 36 



10 

 12 



10 



10-12 



11 

 12 



11-12 



13-14 



3 



22 



