1917] SOILS FERTILIZERS. 723 



less than 2,500 lbs. of nitrogen, and 90 per cent showed a lime requirement 

 averaging over 1 ton of limestone per acre. Eighty per cent of the soils con- 

 tained more than 20,000 lbs. of potassium per acre to plow depth. 



Recormoissance soil survey of northeastern Wisconsin, A. R. Whitson, 

 W. J. GrELB, C. Thompson, C. B. Post, A. L. Buseb, L. R. Schoenmann, and 

 A. E. Taylor {Wis. Geol. and Nat. Hist. Survey Bui. 47 {1916), Soil Sei\ 12, pp. 

 87, pis. 11, figs. S). — This survey, made in cooperation with the Bureau of 

 Soils of the U. S. Department of Agriculture, deals with the soils of an area of 

 3,902,720 acres in northeastern Wisconsin, including Forest, Florence, Marinette, 

 Oconto, Langlade, and Shawano counties. The surface features are character- 

 istic of a glaciated region and the topography varies from level to rolling. 



The soils are of glacial origin. Including peat, muck, and rock outcrop, 27 soil 

 types of 11 series are mapped, of which the Kennan silt loam and fine sandy 

 loam cover 22.9 and 10.9 per cent of the area, respectively, and peat 9.8 per cent. 



Reconnoissance soil survey of north, part of north-central Wisconsin, A. R. 

 Whitson, W. J. Geib, T. J. Dunnewaxd, C. B. Post, W. C. Boabdman, A. R. 

 AxBERT, A. E, Taylob, L. R. Schoenmann, and C. Thompson {Wis. Oeol. and 

 Nat. Hist. Survey Bui. 50 {1916), SoU Ser. 16, pp. 80, pis. 11, figs. S).— This 

 survey, made in cooperation with the Bureau of Soils of the U. S. Department 

 of Agriculture, deals with the soils of an area of 2,707,200 acres in north-central 

 Wisconsin, including Vilas, Oneida, Price, and Iron counties, five townships of 

 Ashland County, and six townships of Rusk County. The surface features are 

 characteristic of a glacial region and the topography varies from level to rolling 

 and hilly and broken. 



The soils of the area range in texture from sands of low agricultural value to 

 loams and silt loams. Twenty-eight soil types of nine series are mapped, of 

 which those of the Kennan series are the most extensive. 



Soil survey of Columbia County, Wisconsin, A. R. Whitson, W. J. Geib, 

 G. W. CoNP,EY, and A. E. Taylor {Wis. Geol. and Nat. Hist Survey Bui. 49 

 {1916), Soil Ser. 14, pp- 84, pis. 5, figs. S). — This survey has been noted from 

 the Field Operations of the Buie:;u of Soils of the U. S. Department of Agricul- 

 ture for 1911 (E. S. R., 31, p. 513). 



Soil survey of JefEerson County, Wisconsin, A. R. Whitson, W. J. Geib, 

 O. J. Noer, and A. H. Meyeb {Wis. Geol. and Nat. Hist. Survey Bui. 48 {1916), 

 Soil Ser. 13, pp. 78, pis. 4, figs. S). — This survey has been noted from the Field 

 Operations of the Bureau of Soils of the U. S. Department of Agriculture for 

 1912 (E. S. R., 34, p. 322). 



Notes on soils analyzed, B. C. Aston {Jour. Ayr. [New Zeal.}, 13 {1916), 

 No. 1, pp. 36-41). — Chemical analyses of 44 samples of New Zealand soils are 

 reported and discussed. 



Soils and crops of Nova Scotia {Ann. Rpt. Sec. Agr. Nova Scotia. 1915, pt. 

 3, pp. 206, figs. 40). — This compilation includes the following special articles 

 bearing on soils : Geological Formations and the Soils of Nova Scotia, Humus, 

 the Most Important Element iu a Fertile Soil, The Conservation of Soil Mois- 

 ture, Farm Yard Manure, and Commercial Fertilizers, by M. Gumming; The 

 Chemistry of Nova Scotia Soils in Relation to the Geological Formations, 

 Chemical and Physical Characters of tlie Soils of Nova Scotia, and Lime in 

 Relation to Agriculture, by L. C. Harlow ; and Underdrainage, by B. H. Landells. 



Terracing and drainage of hill soils by the " Kotak " system, G. F. J. 

 Bleu {Terra-sseenng en Draineering op Berggronden volgens Jiet "Kotak" 

 systeem. Surabaya, Java: Nedcrland.-Ind. Landh. Syndicaat, 1916, pp. 9). — 

 This is a paper presented at the General Dutch Indian Soil Congx'ess, October, 

 1916. 



94087°— No. S— 17 3 



