1917] 



INDEX OF SUBJECTS. 



967 



Pagp. 

 Phenological observations in British Tsles... 717 

 Phenolsnlplionphthalein, electrical conduc- 

 tivity 409 



Phenj-lhydrazids of acids of sugar group 201 



Philippine College of Agriculture, notes 100 



Phlebotomus — 



papalaci, notes 4f>0 



t'crri/carj/m, transmission of verruga by. 358,460 

 rhUgethonfius guinque-maculatus. (See To- 

 bacco worm.) 



Phleospora ptclex n.sp. , description 748 



Phl-ctotribus porteri, notes 460 



Phlorizin, action on milk secretion 272 



PMyctxniaffTTii^aUs, notes, Conn. State 255 



Pltoma — 



arbutin.sp., description 557 



betx, nitrogen fixation by 129 



6Mmc?fe n.form, description 748 



citricarpa, treatment 352 



■mali, notes 842 



pectinata n.sp. , description 748 



tabifica, notes 249 



Phomopsis— 



citri, relation to citrus gummosis, Fla 656 



palmicoJa arecx n.var., notes 148 



Phomotospora migTans n.sp., notes 148 



PhoradcndTon sp. , notes 453 



Phosphate- 

 industry in United States 217 



precipitated, fertilizing value 323 



rock, dissolved. {See Superphosphate.) 



rock, fertilizing value, Ind 214 



rock, fertilizing value, Minn 228 



rock, fertilizing value, Ohio 831 



rock , fert ilizing value and use V23 



rock, mixing with superphosphate 816 



rock, production in 1916 816 



Thomas, fertilizing value 521 



Phosphates- 

 comparison 23, 521 



comparison, Ohio 831 



comparison, R.I 816 



cfiect on sulfofying power of soils, Iowa . . 119 



fertilizing value 124, 229 



mineral, solubility 124, 323, 324 



production in 1915-16 523 



residual effects 23 



use in Minnesota, Minn 217 



(See also Superphosphate.) 

 Phosphatic slag — 



analyses 323 



asasoilneutralizer, R.I 815 



availability, determination, R.I 816 



fertilizing value 534, 723 



fertilizing value, Ga 29 



fertilizing value, Md 540 



fertilizing value, R.I 815 



mixing with superphosphate 816 



residual effects 23 



solubility 323, 723 



use 723 



use on peat soils 135 



Phosphoric acid — 



determination 412, 615, 802 



determination in foodstuffs 618 



effect on decomposition of sugar in soils. 628 



Phosphoric acid— Continued. Fago. 



fixation in soils 423 



in humus of soils 121 



loss in industrial wastes 630 



removal by corn crop. Conn. State 232 



sohibility in soils 18 



Phosphorites, fertilizing value 323 



Phosphorus- 

 compounds of cottonseed meal. Ark 502 



effect on alfalfa and other legumes 828 



in blood of lactating cows 308 



in granitic soils 522 



inorganic, in milk 208 



requirements of barley and oats, R.I 34 



Photosynthesis, studies 524 



Phragmidium — 



Tosx-sempervirentis n.sp., description 557 



subcorticium, notes 550 



Phycitinae, new, of North America 564 



Phijllachora — 



graminis, notes 839 



huberi, notes 253 



texana n.sp., description 74S 



PhyUactinia suffuUa, symbiosis with filbert 



leaves 327 



PhylJocoptes schlechtendali, notes 570 



Phyllophosa membrani/oHa, analyses. Conn. 



State 814 



Phyllosficla — 



, ftactVZarw n.sp., description 550 



bacteroides minima n.var., description 550 



caryx, treatment 756 



cucurbitacearum, notes 550 



euchlaenx n.sp., notes 148 



glumarum n.sp., notes 148 



insularum n.sp., notes 148 



italica n.sp., description 550 



n.spp., descriptions 748 



«o?Jtoria, studies, U.S.D.A 654 



sp. on rubber 253 



sp. on sugar cane 553 



Phyllotreta vittula, notes 765 



Phylloxera caryxcaulis, notes, Corm. State 255 



Physalospora — 



affinis n.sp., notes 148 



guignardioides n.sp., notes 148 



theobromx n.sp., description 755 



Physiology, chemical, treatise 501 



Physokermes picex, studies 662 



Phytic acid of wheat kernel 108 



Pliytomyza aquilegix, notes 255 



Phytonomus nigriroslns, notes, Mont 255 



Phytophtlwra — 



cactoTum, notes .550 



colocasix, notes 14S 



erythroseptica, notes 350 



/a6cri, notes 148,349,452,458 



infestaris. (See Potato late blight.) 



nicotianx, studies 553 



parasitica, strain of on Vinca rosx 844 



sp. on rubber 757 



Pig- 

 diseases, handbook 778 



diseases, notes 876 



houses, construction, Iowa 90 



houses, municipal, description 388 



manure, storage experiments, Me 628 



