REFERENCES 15 



7. Dimo, N. A. Influence of Irrigation and of Increased Natural Hu- 



midity on the Process of Salt Formation and of the Transportation 

 of Salts in the Soils and Subsoils of Golodnoi (Hungary) Steppe, 

 Smarkand Province. Russ. Jour. Exp. Lahdw. 15 (1914), No. 2, 

 PP- 336-338- (Abs. E. S. R. 34, p. 16.) 



8. Hebert, A. Alkali Soils from the Knee of the Niger River. Bui. 



Soc. Chim., France, 4, Ser. 9 (191 1), Nos. 16, 17, pp. 842-843. 



9. Hilgard, E. W. Soils, pp. 423-424. (New York, 1906.) 



10. Hill, E. G. The Analysis of Reh, the Alkali Salts in Indian Usar 

 Land. Proc. Chem. Soc, London, 19 (1903), No. 262, pp. 58-61. 

 (Abs. E. S. R. 14, p. 1056.) 



n. Kearney, T. H., and Means, T. H. Crops Used in the Reclamation of 

 Alkali Lands in Egypt. U. S. D. A. Yearbook (1902), pp. 573-588. 



12. Leather, J. W. Investigation of Usar Land in the United Provinces, 



Allahabad, India. Govt., 1914, pp. 88. (E. S. R. 2>2>, P- 419.) 



13. Mann, H. H., and Tamhane, V. A. The Salt Lands of the Nira Valley 



(India). Dept. of Agr., Bombay, Bui. 39, 35 pp. 



14. Means, T. H. Reclamation of Alkali Lands in Egypt. U. S. D. A. 



Bur. of Soils, Bui. 21 (1903), 48 pp. 



15. MacOwan, P. Black Land in Relation to Irrigation and Drainage, 



Agr. Jour. Cape Good Hope, 23 (1903), No. 5, pp. 573-581. 



16. Shutt, F. T. and Smith, E. A. The Alkali Content of Soils as 

 . Related to Crop Growth. Trans. Roy. Soc. Can. Ser. 3 (1918), 



Vol. 12, pp. 83-97. 



17. Sigmond, A. von. On the Types of "Szik" Soils of the Hungarian 



Alfold. Foldtani Kozlony, 36 (1906), No. 10-12, pp. 439-454. 

 (Abs. E. S. R. 19, p. 1117.) 



18. Snow. F. J., Hilgard. E. W.,and Shaw, G. W. Lands of the Colorado 



Delta in the Salton Basin. Cal. Sta. Bui. 140 (1902), pp. 51. 



19. Stevenson, W. H., and Brown, P. E. Improving Iowa's Peat and 



Alkali Soils. Iowa Sta. Bui. 157 (1915), pp. 45-79. 



20. Traphagen, F. W. The Alkali Soils of Montana. Mont. Sta. Bui. 18 



(1898), pp. 50. 



21. Tulaikov, N. Soils of the Kirghiz Steppe. Russ. Jour. Exp. Landw. 



9 (1908), pp. 628-630. (Abs. E. S. R. 22, p. 617.) 



22. Vissotski, G. The Soil Zones of European Russia in Connection 



with the Salt Content of the Subsoils and with the Character of the 

 Forest Vegetation. Pochvovedenie (Pedologie), 1 (1899), pp. 

 19-26. (Abs. E. S. R. 12, p. 925.) 



23. Willcocks, W. Egyptian Irrigation, 485 pp. (London and New 



York, 1899.) 



24. Willcocks, W. The Irrigation of Mesopotamia. (London and New 



York, 1911.) 



25. Willcocks, W. The Nile in 1904, 225 pp. (London. 1904.) 



