834 



AGRICULTURAL INDEX 



in certain 

 S Africa 2: 



Phosphates — Coiitiniicfl 

 Important British fertilizer transaction. Am 

 1-ert 54:52 Ap 23 "21; Same. Am Flor 56: 

 1070 Je IS '21 

 Intluence of initial reaction on the oxida- 

 tion of sulfur and the formation of avail- 

 able -phosphates. J. G. Lipman and J. S, 

 Joffe. Soil Sci 10:327-32 O '20 

 Influence of phosphates on the action of 

 alpha-crotonic acid on plants. J. J. Skin- 

 ner and F. R. Reid. il Am J Bot 6:167-80 

 Ap 'ID 

 Investigations into the utilisation of raw 

 mineral phosphates in the United States. 

 W. Waggaman and R. C. Wagner. Int R 

 Sci & Prac Ag lO.no 5:533-4 My '19 

 Limestone and phosphate. Sip il "19 111. 

 Farmers' inst., H. E. Young, sec, Spring- 

 field 

 Limestone — sweet clover — rock phosphate — 

 .success. H. J. Snider. O Judd Farmer 69: 

 418 Ap 2 '21 

 Loss of water-soluble phosphate 

 fertilizer mixtures. J Dept Ag 

 552-3 Je '21 

 Manufacture and distribution of acid phos- 

 phate. S. L. Carter. Am Fert 52:61-6 F 

 14 '20 

 Manufacture of high-grade super-phosphate 



in Montana. Am Fert 52:124 Mr 13 '20 

 More about phospho-germ. Prog F 34:408 Mr 



8 '19 

 Moroccan phosphate beds. Am Fert 54:106 Je 



4 21 

 Moroccan phosphates. Int R Sci & Prac Ag 

 ^ 10.no 7:830-1 Jl '19 

 National aspects of the case for increasing 

 the supplies of basic slag. T: Middleton. J 

 :\!inistry As; 27:241-9 Je '20 

 Nauru and Ocean islands; story of the phos- 

 phate discoveries and workings. A. F. Ellis, 

 il maps J Ag New Zealand 21:297-317 D 

 '20 

 Nauru and Ocean Islands; their phosphate 

 deposits and workings. H. B. Pope, il maps 

 J Dept Ag Victoria 19:449-69 Ag '21 

 Nauru island and its phosphate. Am Fert 51: 



86 O 11 '19 

 New discovery may change world fertilizer 



industry. Weekly N L 8:1 D 8 '20 

 New method for rendering insoluble phos- 

 phates available. T. E. Keitt and A. W. 

 Murray. Ga Ag Exp B 132:49-58 '19 

 Newly discovered phosphate in Africa. Am 



Fert 52:90 My 22 '20 

 Norwegian superphosphate industrv. Am 



Fert 55:37 O 22 '21 

 Origin of African phosphates. P. Faerega. 



Int R Sci & Prac Ag 10.no 7:828-9 Jl '19 

 Phosphate demonstration in Stevens county 

 in 1918. P. R. McMiller and others, map 

 Minn Ag Ext Spec B 34:1-7 '19 

 Phosphate deposits in Morocco. Am Fert 53: 



140-1- O 9 '20 

 Pho.'jphate in Canada. H. S. Spence. Am Fert 



54:58-60 F 26 '21 

 Phosphate industry of Tunis. Am Fert 51: 



114 S 27 '19 

 Phosphate of lime resources in Egvpt. Int R 



Sci & Prac Ag 10, no 7:829-30 Jl ''19 

 Phosphate production in the Society islands. 



H. F. Withey. Am Fert 53:73 Jl 17"'20 

 Phosphate rock deposits in Morocco. J. C. 



Martin. Am Fert 53:142+ N 6 '20 

 Phosphate rock to be mined in Australia. Am 



Fert 54:116 Ja 15 '21 

 Les phosphates du Maroc. A. Le Chatelier. 

 Acad Ag France Oompt Rend 7:502-10 

 Je 8 '21 

 Phosphates for grass land. J: Hughes. Live 



Stock J 91:549 My 28 '20 

 Phosphates for Kentucky soils. R. E. Stephen- 

 son. Ky Ag Ext C 97:1-12 '21 

 Phosphates in Spain and France. C. G. Mem- 

 minger. (Commerce Reports no. 2."7) p 167- 

 (O 9) '19 U.S. Bur. of foreign and domes- 

 tic commerce, Washington. D.C. 

 Phosphates in Spain and North Africa. Am 



Fert 50:58-f Ja 18 '19 

 Phosphates: the present position. B. C. Aston. 



J Ag New Zealand 21:37-40 Jl '20 

 Phosphatic manures: the present 

 Tropical Ag 57:54-5 Jl '21 



position. 



Phosphatic nodules of trichinopoly and their 



availability as manure. M. R. Ramaswami 



Sivan. il maps Madras Ag Dept Yearbook 



1918:34-51 '18 (Is 9d) 



Phosphoric acid, backbone builder. W. H. 



Waggaman. il Country Gent 84:8 D 6 '19 

 Raw phosphate rock in nianure. J. G. Ldp- 



man. Rural N Y 79:1667 O 30 '20 

 Raw rock phosphate should be used where 



available. Weekly N L 6:5 F 26 '19 

 Reconnaissance of the Uinta mountains, 

 Utah, with reference to phosphate. A. R. 

 Schultz. map Am Fert 51:64-7-F- Ag 30 '19 

 Relation of organic matter and the feeding 

 power of plants to the utilization of rock 

 phosphate. F. C. Bauer, bibliog Soil Sci 

 12:21-41 Jl '21 

 Relative effect of phosphate-acetate and of 

 phosphate-pthalate buffer mixtures upon the 

 growth of endothia parasitica on malt ex- 

 tract and corn meal media. M. R. Meacham 

 and others. J Bact 5:305-8 My '20 

 Relative value of acid phosphate and rock 

 phosphate on North Carolina soils. C. B. 

 Williams and others, il N C Ag Dept B v 41: 

 1-22 Je '20 

 Retrogradation of superphosphates. A. Aita. 

 Int R Sci & Prac Ag 11, no 9:951-2 S '20: 

 Same. Am Fert 55:76 S 24 '21 

 Rock phosphate as a fertilizer. C. A. YChittle. 



Am Fert 54:112 Ap 9 '21 

 Rock phosphate or acid phosphate? H. W. 



Warner, il Wallaces' F 45:1713-|- Jl 9 '20 

 Rock phosphate tests. C. A. Whittle. Am 



Fert 55:41-2 Ag 27 '21 

 Rock phosphate vs. acid phosphate. C. G. 



Williams. Ohio F 146:3 Jl 3 '20 

 Soil fertility talks. W. W. Weir, il Hoard's 



D 59:552 Mr 19 '20 

 .Solvent action of dilute citric and nitric acids 

 on rock phosphate. J. A. Stenius. J Indus- 

 trial & Eng (!;hemistry (Am. Chemical Soc, 

 Easton, Pa. 60c) 11:224-7 Mr '19 

 Some developed mineral resources and chem- 

 ical industries of the southern states. A. 

 M. Fairlie. Am Fert 52:77-8-]- Ja 31 '20 

 Some experiments bearing on the results of 

 exposure of superphosphate to ordinary 

 weather conditions. A. J. Perkins. J Dept 

 Ag S Australia 24:664-54- Mr '21; Ab- 

 stract. Am Fert 55:45 N 19 '21 

 Spectrophotometric study of the salt effects 

 of phosphates upon the color of phenolsul- 

 fonphthalein salts and some biological ap- 

 plications. C: L. Brightman and others. J 

 Bact 5:169-80 Mr '20 

 Substitutes for superphosphate of lime. Scot- 

 land Ag Bd Leaflet 34:1-8 '18 

 Supplies of phosphate rock. Gard Chron 



(Lond) 67:86 F 21 '20 

 Superphosphate of ammonia. Am Fert 52:138 



Ap 24 '20 

 Swedish svstem of acid phosphate dens. Am 



Fert 51:69 O 11 '19 

 Tetraphosphate — a special Italian fertilizer. 



Am Fert 51:58-9 N 22 '19 

 Tetraphosphate as a fertilizer. Am Fert 55: 



86 Ag 13 '21 

 Toxicity of phosphates toward soybean seed- 

 lings. J: W. Shive. N J Ag Exp Rep 1917: 

 405-8 '18 

 Unloading bulk acid phosphate. T. E. Keitt. 



Prog F 35:454 F 28 '20 

 Use of natural phosphates in rice-fields in 

 Indo-China. Int R Sci & Prac Ag 11, no 1: 

 19-20 Ja '20; Same. Tropical Ag 56:248 Ap 

 '21 

 Use of Nauru island phosphate. B. C. As- 

 ton. J Ag New Zealand 21:345-6 D '20 

 Using phosphate with manure. C. O. Warford. 



Rural N Y 80:319 F 26 '21 

 Value of phosphate manures in India and the 

 possibility of their manufacture on a larger 

 scale. W. A. Davis (Ag. Research Inst. Pusa 

 B. 81:IV-|-28 '18). Exp Sta Record 41, no 9: 

 816-17 '20 

 Vegetation experiments on the availability of 

 phosphorus and potassium compounds. N J 

 Ag Exp Rep 1917:353-68 '18 

 What is acid phosphate? Am Fert 51:68 Ag 

 30 '19 



.SVe also Ammonium phosphate; Barium 

 phosphate; Soils — Phosphorus content 



