A BIBLIOGRAPHY RELATING TO SOIL ALKALIES 9 
Stasuter, H. Irrigating Waters. U S. 
G. S. Water Supply Paper 274 
(1911), p. 177-181. 
Development and methods of application of 
_ “alkali coefficient’’—an index of salt concen- 
tration in water. 
STEPHENSON, R. E. Activity of Soil 
Acids. Soil Science, v. 8 (1919), p. 
41-59. 
Describes experiments and discusses organic 
and metallic acids, and adsorption by colloids 
as causes of acid activity in soils. Tabular data. 
STEVENSON, W. H., and P. E. Brown. 
Improving Iowa’s Peat and Alkali 
Soils. Iowa Sta. Bul. 157 (1915), 
a7 p. 
Study of the nature of these soils. Drainage 
and certain farming methods as corrective 
measures. Diagrammatic and tabular data. 
Illustrated. 
Stewart, J. See GarpDNER, F. D., 
and J. Stewart, I. 
Stewart, R., and J.. E. GREAVES. 
Movement of Nitric Nitrogen in Soil 
and its Relation to ‘Nitrogen Fiz- 
ation.”” Utah Sta. Bul. 114 (1911), 
p. 181-94. 
Study of nitrates in soil. Tabular data. 
Stewart, R., and W. PETERSON. 
Nitric Nitrogen Content of the Country 
Rock. Utah Sta. Bul. 134 (1914), 
45 p. Utah Sta. Bul. 150 (1917), 
20 p. (Continuation of above). 
Considers the origin, distribution, evidences 
and effects of nitrate in the soil, rock and water 
of western United States. Tabular data. Llus- 
trated. 
: . Origin of Alkali. 
Jour. Ag. Research, v. 10 (1917), 
p. 331-353. 
Results of investigations in western United 
States of soluble salts in the various geological 
formations. Bibliography, diagrams, and tables. 
Origin of ‘‘Nitre 
Spots” in Certain Western Soils. 
Jour. Am. Soc. Agronomy, v. 6 
(1915), p. 241-248. 
v. 42 (1915), p. 452. 
Discusses origin as concentrations of salt 
leached from country rock rather than bacterial 
fixation. Tabular data. 4 
Sutuerst, W.F. Effect of Gypsum on 
Alkali Soils. Jour. Ind. and Eng. 
Chem., v. 2. (1910), p. 239 (11% col.). 
Laboratory experiment as to completeness of 
action. Diagrams. 
Symmonps, R. S. Experiments with 
Nitric Acid in Alkaline Soils. Agri- 
cultural Gazette (N.S. Wales), v. 21 
(1910), p. 257-266. 
Description and results of field tests in recla- 
mation of ‘‘black alkali’’ lands. Illustrated. 
—. Note on Action of Nitric Acid 
in Neutralizing Alkaline Soil. Royal 
Soc. of N.S. Wales. Jour. and Proc. 
v. 41 (1907), p. 46-48. 
Laboratory experiments on wheat grown in 
flower pots. Illustrated. 
Dise., Science, 
11966—25+}—_—_2 
TaMHANE, V. A. See Mann, H.H., 
and V. A. TAMHANE, I. 
TINSLEY, J. D. Drainage and Flooding 
for the Removal of Alkali. N. Mex. 
Sta. Bul. 43 (1902), 29 p. 
Design, installation, and operation of flooding 
and drainage systems discussed. Diagrammatic 
and tabular data. 
TRAPHAGEN, F. W. Alkali Soils of 
Montana. Mont. Sta. Bul. 18 (1898), 
27 p. Mont. Sta. Bul. 54 (1904), p. 
91-93. 
Study of conditions and methods of correction. 
Tabular data. 
Treitz, P. Alkali Soils of the Great 
Hungarian Alfold. Foldtani Koz- 
lony, v. 38 (1908), p. 106-131. Abs., 
Exper. Sta. Rec., v. 20, p. 818. 
Origin and composition discussed. 
TuxtayKkov, N. Some Laboratory Ex- 
periments on the Capillarity of Soils. 
Russ. Jour. Exper. Landw., v. 8 
(1907), p. 629-666. Abs., Exper. 
Sta. Rec., v. 20, p. 517. 
Investigation of relation of capillarity to soil 
alkali of the Muganj Steppe. Three figures. 
TuxayrKkov, N. Soils of the Kirghiz 
Steppe. Russ. Jour. Exper. Landw., 
v. 9 (1908), p. 628-630. Abs., Exper. 
Sta. Rec., v. 22, p. 617. 
Study of these soils with respect to composi 
tion and origin of salts present. 
TuLaykov, N., and P. Kossovica. 
Soils of the Muganji Steppe and Their 
Transformation into Alkali Land by 
Irrigation. Izviestiia Moskovskago 
Sel’skokhoziaistvennago Instituta 
(Annales, Institute of Agriculture, 
Moscow), v. 12 (1906), No. 7, p. 
27-255. Ibid., v. 12 (1906), No. 2, 
p. 226-36. Russ. Jour. Exper. 
Land., v. 6 (1905), No. 2, p. 176-242. 
Abs., Exper. Sta. Rec., v. 28, p. 818, 
426. Abs., Centralblatt fiir Agricul- 
turchemie, v. 35 (1906), p. 567. 
Detailed report of Russian Government inves- 
tigation of irrigation by flooding as a cause of 
alkali lands and preventative measures. Tabu- 
lar and diagrammatic data. Illustrated. 
VissoTskI, G. Soils Zones of European 
Russia in Connection with the Salt 
Content of the Subsoils and with the 
Character of the Forest Vegetation. 
Pochvovedenie (Pedologie), v. 1 
(1899), p. 19-26. Abs., Exper. Sta. 
Rece., v. 12, p. 925. 
Study and classification of soils with respect 
to composition and concentration of salt content. 
WaRINGTON, R. Physical Properties of 
Soil. (Oxford, 1900), 231 p. 
Lectures on physical properties and relations 
ofsoil. Special reference to alkali soils and their 
treatment. Tabular and diagrammatic data. 
Warner, H. W. Good Farming Makes 
Acid Soils. Wallace’s Farmer, v. 45 
(1920), p. 2874 (1 ecol.). 
Discusses leaching, cropping, and manuring 
as causes. Lime as a remedy. 
