520 EXPERIMENT STATION RECORD. 



driers in the form of dry, round pellets of about the size of peas. In this con- 

 dition it is inoffensive and can be readily shipped in bags or ground to a 

 powder. Two analyses of the dried sludge which are reported show nitrogen 

 2.15 and 2.61 per cent, respectively, phosphoric acid 0..31 and 0.11 per cent, and 

 potash 0.24 and 0.31 per cent, with an estimated fertilizer valuation of $6.76 

 and $10.79 per ton, respectively. The material sells at the works for $2.17 

 per ton. 



The author is of the opinion that the dried sludge is an ideal fertilizer filler, 

 and estimates that the cost of preparing the material commercially would 

 amount to about $1.66 per ton. 



SOILS— FERTILIZERS. 



The soil, J. Dumont (La Terre Arable. Paris, J 910, 2. cd., pp. XTI \-32S, 

 figs. 20; rev. in Rev. Sci. [Paris], 48 {1910), II, No. 24, p. 766).— This is a sec- 

 ond revised edition of this treatise (E. S. R., 19, p. 619), rendered necessary by 

 the rapid development of science as applied to soiLs. 



A soil survey of Bandolph, "Wayne, Henry, Rush, Fayette, 'Lrnion, and 

 Franklin counties, Indiana, A. E. Taylor {Ind. Dcpt. Geol. and Nat. Resources 

 Ann. Rpt., 34 {1909), pp. l-'>-127, pis. 2, maps 7). — A soil survey of these counties 

 is reported, in which the following soil types were mapped : Miami clay loam, 

 Miami black clay loam, Huntington loam. Wabash loam, Wabash silt loam, 

 muck, Miami loam, Miami silt loam, oak forest silt loam, limestone slope clay 

 loam, and Hamburg loam. The soils all belong to either the Later Wisconsin 

 or the Illinoisan Drift formation. 



A soil survey of Vanderburgh, Gibson, and Pike, and parts of Warrick 

 and Spencer counties, Indiana, C. W. Shannon {Ind. Dept. Geol. and Nat. 

 Resources Ann. Rpt., 34 {1909), pp. 129-261, tils. 11, mnps 5).— From the results 

 of a soil survey of these counties the following soil types were established : 

 Miami silt loam (loess), lake plain soil, alluvial soils, Miami sand, swamp 

 deposits, till and terrace, sand dunes, residual, Waverly clay loam, Waverly silt 

 loam, Waverly clay, Miami fine sandy loam, and Waverly fine sandy loam. 



The soils of the Upper Burnett, J. C. Brtjnnich {Queensland Agr. Jour., 25 

 (1910), No. 5, p. 248, talile 1, nuip 1). — ^A geological sketch map is given and 

 data on chemical analyses of soils from various parts of the district are re- 

 ported. It is stated that the soils are of mixed origin and as a rule very fertile, 

 containing unusually high amounts of lime in a very available fox'm. 



The chemical and mineralogical examination of some Chinese tea soils, 

 W. O. Robinson and W. J. McCaughet (Jour. Indus, and Engin. Cheni., 2 

 (1910), No. 11, pp. 462, 463). — The results of chemical, mechanical, and min- 

 eralogical examinations of 3 samples of Chinese tea soils from the northern 

 central part of the Province of Fukieu are reported. The chemical composition 

 was found to be much the same as that of fertile American soils, but in general 

 type characteristics the soils do not correspond to any yet described in the 

 United States. 



The salt lands of the Nira Valley, H. H. Mann and V. A. Tamhane (Dept. 

 Agr. Bombay Bui. 39. pp. 35, fig. 1). — It is stated that the development of salt 

 lands in the Nira Canal area is due to seepage from a canal and the consequent 

 raising of the water level of the soil. The salts come from the subsoil water 

 and are composed principally of sodium sulphate and sodium chlorid mixed 

 with varying quantities of magnesium salts. There is very little sodium car- 

 bonate. A system of reclamation by means of resistant crops, frequent irriga- 

 tion, and a series of drains running across the line of natural drainage at short 

 intervals at a depth of 2J ft. has been found very efficient. 



