878 



EXPERIMENT STATION EECOED. 



Page. 



Pollinia rufispica, analyses 573 



PolychTosis {Eudemis) 6orrona, bibliography. 660 



viteana. (Sec Grape berry moth.) 



Polydactylism in man and domestic animals. 576 



Polygonum spp., analyses "69 



Polynema striaticorne , notes, N.Y.State 657 



Polyporus amarm n. sp. , description 052 



spp., infection experiments 52 



injurious to oranges 157 



sulphurous, notes 717 



vaporarius, notes 157 



Polystkhum lonchitis, new Taphrina affecting. 652 



Pomegranates, composition and uses 763 



Pomphopcea sayi, notes 454 



Pond apples, pollination experiments 341 



Ponies. (See Horses.) 



Poplars, infection experiments 52 



insects affecting, Conn. State 750 



Poppy, natural crosses of 723 



seed cake for live stock 768 



seeds, adulteration 170 



Populin, studies 138 



Populus canadensis, notes 138, 343 



spp. , saccharose from 138 



Porta vincta, notes 352 



Porina signata, injurious to flax 56 



Pork, market classes and grades. 111 69 



production following cattle, Ind 70 



quality as affected by diet, N Dak 67 



Porthctria dispar. {See Gipsy moth.) 



Porto Rico Federal Station, notes 598 



Station, report Ip3 



Sugar Station, notes 497 



Posidonia austraUa, cloth from 337 



Posts, fence, durability, Ohio 644 



gate, preservation 44 



Pot cultures, preparation 397 



experiments, mineralogical significance of 422 

 Potash— 



and lime, interaction 423 



as affected by lime 26 



availability in soils 197 



deposits in the Netherlands 527 



of Germany, bibliogi'aphy 134 



determination, cobalti-nitrite method 307 



effect on bacteria in soils 326 



permeability of soils 526 



plant gi'owth 328 



estimation in organic liquids 10 



fertilizers, comparison 133, 134, 323, 424, 728 



Mass 233 



zeolitic, notes 715 



fertilizing value 336, .527 



Cal 638 



W.Va 716 



from feldspar, notes 24 



various minerals 422 



increase in use of 324 



industry in Germany 624, 715 



papers on 324 



progress in 24 



methods of analysis 197 



prices 624 



requirements of soils 624 



salts. (See Potassium salts. ) 



translocation in leaves 331 



Potassic superphosphate, fertilizing value 728 



Page. 



Potassium — 



carbonate, effect on plant respiration 328 



fertilizing value 323 



chlorid, effect on plants 630 



solubility of phosphates 26 



fertilizing value 133, 134, 323 



cyanid from molasses waste 215 



fumigation. Mass 260 



methods of analysis 197 



determination in soils 197 



various substances 120 



hydroxid, effect on plants 630 



use iii breaking down reducing 



sugars 705 



metabolism, investigations 172 



nitrate, effect on plants 328, 630 



fertilizing value 132 



phosphate, effect on calcium phosphate.. 25 



salts, fertilizing value 425 



silicate, as a source of potash 24 



fertilizing value 24, 133 



sulphate, effect on iron phosphate 26 



plants 630 



Potato- 

 bacterial disease , notes 648 



beetle, Colorado, enemies, U.S.D.A 655 



remedies, Can 401 



black scab, treatment 449 



culls as a source of alcohol, U.S.D.A 14 



culture in the Philippines 68 



diseases, dissemination and treatment. 



Can.. 447 



notes : 45, 742 



studies 247, 347, 552 



treatment 237, 345 



Ohio .'. 539 



Vt 447 



distillery, description and operation, 



U.S.D.A 14 



early blight, studies. Me. 750 



flea beetle, notes, Can 455 



industry in Ohio, Ohio 537 



late blight, life history and treatment 46 



notes 45,248 



treatment 552 



leaf-roll, studies 46. 47, 154, 345 



and bibliography 552 



mosaic disease, studies 449 



moths, notes 500 



pollen, studies 430 



scab, notes 742 



slop, analyses, U.S.D.A 71 



stalk borer, notes 557 



U.S.D.A : 655 



tuber worm, notes 560 



wart disease, studies 648 



diseases, studies, U.S.D.A. 93 



treatment 449 



Potatoes — 



analyses 74 



anatomy, studies 30 



as a truck crop, U.S.D.A 36 



affected by sunshine and precipitation 16 



blackleg affecting, U.S.D.A 93 



breeding experiments 399 



correlation between longitudinal diam- 

 eter and starchiness 439 



