314 EXPERIMENT STATION RECORD. 



SOILS— FERTILIZERS. 



Soil surveys in the United States {Jour. Bd. Agr. {London], 15 (1908), No. 

 1, pp. .}cS, .'i<)). — The progress, cliurncter, and uses of the soil surveys of the 

 Bureau of Soils of this Deparluient are l)riefly described, and the need in Great 

 Britain of more systematic work of this kind than has heretofore been under- 

 taken is pointed out. 



Cartography of southwestern Louisiana with special reference to the 

 Jennings sheet, G. D. Hareis (Geol. Survey La. Bui. 6, pp. 3-2Ji, maps 2). — 

 This is one of the series of reports of the Geological Survey of Louisiana which 

 has been carried on for several years under the direction of the State experi- 

 ment stations. A map showing 5-foot contours of a poi'tion of Calcasieu and 

 Acadia I'arishes, which it is believed will be of much service in rice culture 

 and canal and levee construction, is given. 



Results of analyses of soils, F. F. Villasenor {Mem. y Rev. Soc. Cien. 

 ''Antonio Alzate," 26 {1901), Nos. .',, pp. 109-llJ/; 5, pp. 159-170).— ^iotes on the 

 general character and physical and chemical analyses of a number of samples 

 of cultivated soils from different parts of jNIexico are reported in tliis article. 



Soil analysis {Rhodesian Agr. Jour., 4 {1907), No. 6, pp. 596-6W). ^Chemical 

 and mechauical analyses of 6 samples of soils from the Gwelo district of Rho- 

 desia are reported. 



Manuring of Rhodesian soils (Rhodesian Agr. Jour., 4 {1907), No. 6, pp. 

 541-552). — Analyses of a number of samples of Rhodesian soils are reported, 

 with suggestions as to their fertilizer requirements. The analyses show that 

 as a rule the soils are somewhat deficient in lime and phosphoric acid. 



Contribution to the study of the Amur region, S. V. Shchusev {Poch- 

 vovyedyenie [Pedologie], 1906, pp. 81-89; aJ)S. in Zhur. Opuitn. Agron. [Russ. 

 Jour. Expt. Landw.], 8 {1907), No. 5, p. 548). 



Tea soils of the Black Sea coast of the Caucasus and of some districts of 

 China and Japan, Zemyatchenskii and Adamov {Selsk. Klioz. Shorn. Udyel. 

 Vyed., 1 {1905), pp. 147-224; ahs. in Zhur. Opuitn. Agron. [Russ. Jour. Expt. 

 Landw.], 8 (1907), No. 5, pp. 534, 535). 



Contribution to the study of soils, r. de Sornay {Sta. Agron. Mauritius 

 Bui. 17, 1908, pp. 79). — The sampling and physical and chemical analysis of 

 soils are discussed with special reference to the applicability and importance of 

 such methods of examination in the case of Mauritius soils. The methods of 

 analysis adopted and used in some preliminary study of the soils of Mauritius 

 are described. The character of these soils as compared with soils of similar 

 islands on which sugar cane is grown is also discussed. It is shown that while 

 the soils of Mauritius are as a rule quite rich in fertilizing materials, they pro- 

 duce less sugar than, for example, those of Hawaii. This is attributed to the 

 fact that the soils have not been thoroughly studied and the use of fertilizers 

 systematically undertaken. 



The productiveness of the soil: Geological and climatological factors, A. 

 Gregoire {Ann. Gemhloux, 18 {1908), No. 4, pp. 225-241, figs. 2).— This is the 

 fourth of a series of articles discussing in a broad way the factors of soil fer- 

 tility (E. S. R., 20, p. 216). The general conclusion reached in the present dis- 

 cussion is that the study of climatic and geologic factors is of great importance 

 in agrology. They give valuable indications of the phenomena occurring in the 

 soil and furnish a guide for the preparation of agronomic charts, i. e., for the 

 comparative study of soils. 



Oroclimatic basis of classification of soils, G. N. A'ysotski {Pochvovyedy- 

 enie [PMologie], 1906, pp. 1-18; abs. in Zhur. Opuitn. Agron. [Russ. Jour. Expt. 

 Landw.], 8 {1907), 5, pp. 586-538). 



