AGRICULTURAL INDEX 



loi; 



Soil moisture — Coiifinued 



Movement of moisture in soil by capillarity. 

 \V. iJardner. Soil Sci 7:313-17 Ap '19 



^Movement of soil moisture. W. Gardner and 

 J: A. Widtsoe. bibliog Soil Scl 11:215-32 Mr 

 '21 



New classification of the soil moisture. G: 

 J. Bouyoucos. bibliog Soil Sci 11:33-47 Ja '21 



Ne%v joil elutriator. W. Gardner, bibliog il 

 Soil Sci 9:iyi-7 INIr "20 



Nitrates, nitrification, and liacterial contents 

 of Ave typical acid soils as affected by lime, 

 lertiiizer. crops, and moisture. 11. A. Noyes 

 find S. D. Co!ine!-. Ijibliog il J Ag Research 

 16:27-42 Ja 13 '19; Abstract. Int R Sci 

 & Prac As lo.no 7:S17-1S Jl '19 



Note on the capillarv rise of water in soils. 

 B. A. Keen. .J As Sci 9:396-9 O '19 



Quantitative relation between soil and the 

 soil solution brought out by freezing- 

 point determinations. B. A. Keen. J Ag Sci 

 9:400-15 O '19 



Relation between spring precipitation and 

 height growth of western yellow-pine sap- 

 lings in Arizona. G. A. Pearson. J For 16: 

 677-'<9 O '18 



Relation of minimum moisture content of 

 subsoil of prairies to hygroscopic coefficient. 

 F. J. Alway and others, bibliog Bot Gaz 

 67:185-207 Mr '19 



Relation of moisture in solid substrata to 

 physiological salt balance for plants and 

 to the relative plant-producing value of 

 various salt proportions. J: W. Shive. bib- 

 liog J Ag Research 18:357-78 Ja 2 '20 



Relation of soil moisture to orchard irriga- 

 tion practice. S. Fortier. Cal State Comm 

 Hort B V 8:361-7 Jl '19 



Relation of the moisture equivalent of soils 

 to the moisture properties under field con- 

 ditions of irrigation. S. T. Harding. Soil 

 Sci 8:303-12 O '19; Abstract. Ag Gaz of 

 Canada 7:767-8 S '20 



Relations existing between the soil and its 

 water content. B. A. Keen. J Ag Sci 10:44- 

 71 Ja '20 



Relationship between the unfree water and 

 the heat of wetting of soils and its signifi- 

 cance. G: J. Bouyoucos. Mich Ag Exp Tech 

 B 42:1-23 '18; Same. Mich Ag Bd Rep 1918: 

 911-31 '19 



Soil acidity as affected by moisture condi- 

 tions of the soil. S. D. Conner, bibliog J Ag 

 Research 15:321-9 N 11 '18 



Soil fertility talks: wanted: barrels and bar- 

 rels of water. W. W. Weir, il Hoard's D 

 58:1213; 59:6 Ja 16-23 '20 



Soil moisture: with discussion. E. S. Hop- 

 kins. {In Conservation of soil fertility, p. 

 50-62) '20 Canada Comm. of conservation, 

 Ottawa 



Soil moistiu-e conditions, spring — ^1920. L. C. 

 Raymond. J Ag (Quebec) 24:10 Jl '20 



Soil moisture movement. W. W. McLaugh- 

 hn. J Ag Cal 7:7+ F '21 



Soil moisture movement in relation to growth 

 of alfalfa. C. A. Thompson and E. L. Bar- 

 rows, bibhog N M Ag Exp B 123:1-38 '20 



Some notes on the direct determination of 

 the hygroscopic coefHcient. F. J. Alwav and 

 others. Int R Sci & Prac Ag 9. no 9:1033-6 S 

 'IS 



Sortume. A. Tarchetti and A. Tournon. Int 

 R Sci «S: Prac Ag 11, no 2:159-60 F '20 



Studies on capacities of soils for irrigation 

 water, and on a new method for determin- 

 ing volume weight. O. W. Israelsen. bibliog 

 il J Ag Research 13:1-36 Ap 1 '18; Abstract. 

 Int R Sci & Prac Ag lO.no 4:382-4 Ap '19 



Water-supplying power of the soil as related 

 to the wilting of plants. B. E. Li^•ingston 

 and R. Koketsu. bibliog Soil Sci 9:469-85 Je 

 '20 



What happens to ground water and why. S. 

 R. Winters, il Sci Am (233 Broadway. N.Y. 

 15c) 124:345 Ap 30 '21 



Why. when and how to cultivate. G. A. 

 Bricker. il Prac F 115:217 Je 15 '19 



See also Drainage; Mulching: Soil al)- 

 sorption; TS'ater requirements of plants 



Soil percolation 



Kfffct of leaching on the availability of rock 

 phosphate to corn. F. C. Bauer, bibliog 

 il Soil Sci 9:235-51 Ap '20 



.V(c iiiiif, I.ysimeters; Soil absorption; Soil 

 niolsiure 

 Soil pollution 



Hookworm disease: easily stopped when soil 

 pollution ceases. B. E. Washburn. Prog F 

 35:737 Ap 3 '20 



Investigation on soil pollution and the rela- 

 tion of the various types of privies to the 

 spread of intestinal infections. I. J. Klig- 

 ler. (Monographs no. 15) 75p bibliog '21 

 Rockefeller inst. for the medical research, 

 Av A and 66th st, N.Y. 

 Soil protozoa 



Method for estimating the ninnljer of active 

 protozoa in the soil. D. W. Cutler, bibliog J 

 Ag Sci 10:135-43 Ap '20 



Numbers of pi otozoa in certain Rothamsted 

 soils. L. M. Crump, bibliog J Ag Sci 10:182- 

 98 Ap '20 



Observations on soil protozoa. D. W. Cutler, 

 bibliog J Ag Sci 9:430-14 O '19 



Protozoa and the phenomena of reduction in 

 soil. Int R Sci & Prac Ag 9,no 7:788-90 Jl '18 



Protozoan fauna of the soils of New Jersey. 



C. R. Fellers and F. E. Allison, bibliog il 

 Soil Sci 9:1-25 Ja '20 



Stylonichia impaled upon a fungal filament. 



D. H. Wenrich. il Science (Science Press, 

 Garrison. N.Y. 15c> n & 48:602-4 D 13 'IS 



Variation, selection and mutation in one of 

 the protozoa. J Heredity 10:143 Mr '19 

 See also Soil microbiology 



Soil sampling 



New soil sampler. B. H. Wilsdon and M. L. 



Mehta. il Ag J of India 16:142-5 Mr '21 

 Sampling field plots for bacterial analysis. 



H. A. Noves; E. Voight. Int R Sci & Prac 



Ag 10, no 1:38-9 Ja '19 

 Sampling soil plots. F. E. Bear and G: M. 



McClure. bibhog Soil Sci 9:65-75 Ja "20 

 Study in soil sampling. W: Frear and'E. S. 



Erb. Assn Offic Ag Chem J 4:98-103 Ag '20 



Soil solubility 



Comparative rate of formation of soluble 

 material in cropped and virgin soils as 

 measured bv the freezing-point method. 

 C. E. Millar. Soil Sci 7:253-7 Ap '19 



Effect of calcium sulphate on the solubility 

 of soils. M. M. McCool and C. E. Millar. J 

 Ag Research 19:47-54 Ap 15 '20 



Formation of soluble stibstances in soils tak- 

 en from widely separated regions. M. M. 

 McCool and C. E. Millar, bibliog map Soil 

 Sci 10:219-35 S '20 



Rate and extent of solubility of soils under 

 different treatments and conditions. G: J. 

 Bouvoucos. Mich Ag Exp Tech B 44:1-49 

 '19; Abstract. Exp Sta Record 41, no 6:512- 

 14 '19 



Solubility of anions in alkali soils. W. P. 

 Kelley and S. M. Brown, bibliog Soil Sci 

 12:261-85 S '21 



Solubility of lime, magnesia, and potash in 

 such minerals as epidote, chrysolite, and 

 muscovite, especially in regai'd to soil re- 

 lationships. R.. F. Gardiner. J Ag Re- 

 search 16:259-61 Mr 10 '19 



Some studies on the rate of formation of 

 soluble substances in several organic soils. 

 M. M. McCool and L. C. Wheeting. bibhog 

 Soil -Sci 11:233-47 Mr '21 

 Soil solution 



Abnormal stem growth of soybeans in sand 

 cultures with Shive's three-salt solution. 

 A. G. McCall and others, il Soil Sci 6:479-85 

 D '18 



Aqueous vapor pressure of soils. M. D. 

 Thomas, bibliog Soil Sci 11:409-34 Je '21 



Chemical effect of salts on soils. W. P. Kel- 

 ley and A. B. Cummins. Soil Sci 11:139-59 

 F '21 



Colorimetric determination of soil in a 

 colored water extract. P. Emerson, bibliog 

 Soil Sci 12:413-17 N '21 



