978 



EXPERIMENT STATION RECORD. 



[Vol. 41 



Phutognic.-i (Centeterus) intptifronx ii.sp., 



description, 63. 

 Phagoeyto.sis of blood as affected by 



citrates, 187. 

 Phaseolus — 



inheritance in, 821. 



morphological and physiological char- 

 acters, correlation, 224. 

 Phatnoma, notes and new species, 551. 

 Pheasant and Golden Campine hybrids, 



sterility, 472. 

 Phenolut as a disinfectant. 875. 

 Philippine College of Agriculture, notes, 



500. 

 Fhlfhotomiis vexator, notes, 259. 

 Phleum spp., analyses, Wyo., 333. 

 Fhla'OthripidiP, key, 847. 

 Phlorizin, influence on metabolism, 68. 

 FMyctwnia ferruffalis, studies, 460. 

 rhoethornis Swainson, orthography, 547. 

 Phtjtna — 



miisw n.sp., description, Hawaii, 153. 



napobra^sicw, studies, 657. 



sp. on papaw, 450. 

 Phoma rot of tomato, 156. 

 Phomopsis vexantt, studies, Fla., 542. 

 Phoradendron spp., sap concentration, 632. 

 Phorbia fusciceps as a bean pest, 259. 

 Phormia regitui, flight distances, 259. 

 Phorodon — 



galeopsidis, notes, 756. 



humuli. {See Hop aphis.) 

 Phosphate — 



beds of Uinta Mountains, Utah, 518. 



calcined, fertilizing value, Mo., 628. 



fertilization, Mich., 323. 



industry, 425. 



limestones of New Zealand, 326. 



requirement of Indian soils, 515, 814, 

 816. 



rock as affected by sulfoflcation and 

 nitrification, 324. 



rock, fertilizing value, Del., 137. 



(See also Phosphates, comparison.) 



rock, Florida soft, 323. 



rock, manganese content, 521. 



rock, processes for treating, 628. 



rock, production and consumption in 

 1918, 23, 817. 



supply of India, 816. 

 Phosphates — 



and potash, comparative value for 

 grain, 825, 826. 



availability for soy beans, N..T., 23. 



availability, investigations, 131. 



comparison, 229, 230, 425, 515, 518. 

 723, 813, 816; Can., 516; Del., 137; 

 Fla., 527 ; Mass.. 21 ; Mo., 624, 628 ; 

 N.C., 625 ; N.J., 23. 



effect on soil bacteria, 721. 



effect on soil solubility, Mich., 512. 



Injury to soy beans, 525. 



mining and manufacture, 423. 



precipitated, fertilizing value, 720. 



reaction with calcium carl)onate, 720. 



recovery from fecal matter, 723. 



Phosphates — Continued. 



residual effect, N.C., 625. 



toxicity to soy beans, N.J., 27. 



world shortage in, 628. 



(See also Superphosphate.) 

 Phosphatic — 



nodules of Trichinopoly, 131. 



slag, artiflcial. 628. 



slag, different grades, comparison, 723. 



slag, fertilizing value. (See Phos- 

 phates, comparison.) 



slag, manganese content, 521. 

 Phosphatlds, determination, 116. 

 Phosphoric — 



acid, effect on soil solubility, Mich., 

 513. 



acid fertilizers, availability on swamp 

 soil, 813. 



acid, fixation and dissolution in soil, 

 720. 



acid from triplite, 817. 



oxid, determination, 411. 

 Phosphorus — 



different forms, availability in nutrient 

 solution, N..T., 27. 



effect on wheat, Del., 136. 



metabolism in relation to milk secre- 

 tion. 678. 



movement in soils. 214. 



of soil as affected by various salts, 

 326. 



of soil, organic, 213. 

 Photosynthesis — 



dynamics of. 523. 



measuring, 524. 



studies, 28, 330. 



temperature coefficient, 725. 

 Phryganidia californica, notes, 258. 

 Phyllachora, notes, 843. 

 PhyUncoptcn toxicopharjus, n.sp., descrii>- 



tion, 759. 

 PhyUo.sticta solitaria in Ohio, Ohio, 249. 

 Phylloxera — 



breeding for resistance, 740. 



effect on sap acidity, 740. 



infested vineyards, reconstitution, 241. 

 Phytometer method in ecology studle.5, 321. 

 Phytomyea sp. on maize, 553. 

 Phytonomus — 



posticus, notes, Mont., 57. 



spp. on red clover, 251. 

 Phytophth ora — • 



cryptoyea- n.sp., description and stud- 

 ies, 656. 



erythroseptica, notes, 748. 



infestans. (See Potato late blight.) 



n.sp. affecting potato, 655. 



tciTextrm on tomatoes in transit, 156. 

 Phytophthora — 



on llevea and cacao, 55. 



studies, 543. 

 Phytopttis sp., notes. 655. 

 ricrida' of .Vrgentina, 665. 

 Pteri> hransicw, parasites of, 552. 

 Pigeon-pea diseases, notes, 745. 

 Pigeons, wood, food habits, 454. 



