1266 



EXPERIMENT STATION RECORD. 



Phosphate— Continued. Page. 



insoluble, fertilizing vulae 432, 620, 621, 824 



manuring, relation to phosphoric acid 



content of soils 919 



of aluminum, fertilizing value 219 



lime. (See Calcium phosphate.) 

 rock, dissolved. (See Superphosphate.) 

 finely ground, fertilizing value, 



R. 1 619 



Florida, analyses 22 



statistics 432, 726 



Wolters, fertilizing value 724 



Phosphates — 



analyses, Mass 220 



as affected by bacteria in soils 17 



lime and magnesia 1029 



nitrogenous fertilizers ... 631 



assimilability, factors affecting 539 



availability in soils 1108 



comparison 219, .538, 539, 725, 919, 920, 1113 



Md 919 



R.I 619 



crude, rendering soluble the phosphoric 



acid in 522 



effect on germination of seeds 126 



factors affecting fertilizing value 124 



fertilizing value 539 



importation into Nantes 326 



information concerning, Md 920 



insoluble, as affected by micro-organisms 920 



notes, U.S.D.A 1095 



natural, detection in phosphatic slag. . . 207 



notes, U.S.D.A 493 



of iron and aluminum, method of increas- 

 ing solubility 921 



residual effects 326 



{See also Superphosphates.) 

 Phosphatic slag — 



analyses 23,207,922 



Mass 220 



R.I 1108 



fertilizing value 124, 219, 539 



620. 621 . 725, 824, 919, 920, 1113 



R.I 620 



history and use 539 



production in Belgium 23 



Phospho-humic compounds of soils 531 



Phosphomolybdic acid as a reagent for po- 

 tassium 708 



Phosphoreted hydrogen, poisoning by 421 



Phosphoric acid — 



availability 208,320 



in ashes 22 



soils 522,717 



determination 417,522 



as ammonium phospho- 



molybdate. 909 



magnesium - ammoni- 



lun phosphate 207 



magnesium pyro- 

 phosphate 308 



in fertilizers 207,307 



phosphates 107,207,308 



phosphatic slag 107, 



108,207,398 

 superphosphates 107 



Phosphoric acid— Continued. 



effect on composition of potatoes 334 



root development 21 



equilibrium of bases in presence of 208 



excretion as affected by bread 1067 



in Belgian sul)soils, fertilizing value 1024 



fertilizers, sources and functions 921 



plant juices, variations in 329 



soluble compounds, preparation 724 



solubility as affected by soil bacteria. . . 219 



volatilization 522 



Phosphorite, fertilizing value 539 



Phosphorus- 

 compounds, assimilation by children . . . 359 

 nutritivevalue,N.Y. State. 568 



determination in plants 398 



in feces 905 



heated milk 474 



human milk 474 



liberation from nuclein compounds 610 



metabolism 660, 964 



relations in A spergillus niger 925 



Phosphotungstic acid as a reagent for pot- 

 ash <L ^ 909 



Photography, use in deep borings 388 



Photospheres, formation, U.S.D.A Ill 



Phrystola coeca, notes 556 



Phthorimxa operculella, notes 353 



remedies 557 



Phyllocoptes schlechtendali, notes, N. Y. 



State •. 955 



Phyllosticta cinnamomi n. sp., description. . 342 



Phylloxera in .\lgeria 1131 



Vatellina 1145 



winged form 161 



Physarum cinereum affecting grasses 647 



notes 842 



Physical societies and journals, U.S.D.A . . . 526 

 Physiography of Tennessee, Kentucky, and 



Illinois 425 



the Nile basin... 424 



Phytin, physiological effects 759 



N.Y. State... 568 



removal from bran, N. Y. State 569 



Phytomyza geniculata, notes 850 



Phytophthora infestans. (See Potato rot 

 and Potato blight.) 



ommvora, notes 342 



phaseoli, investigations, Conn. 



State 48 



sp. , notes 555, 945 



Picea excelsa, notes, U.S.D.A 742 



Pickles, analyses 756 



Picotees, culture 146 



Pie filler, making 374 



Pig and seed-corn farm, management, 



U.S.D.A 627 



disease due to Spirochajta 678 



diseases, coptrol — 375 



in Germany 774 



infectious in Ohio 1080 



notes, Kans 194 



serum treatment 983 



treatise 86 



houses, construction. 111 267 



U.S.D..\ 627,792 



