16 EXPERIMENT STATION EECORD. 



Studies on some soils from Saskatchewan, L. L. Clark, R. A. Gortner, and 

 C. E. \'ail (Anin: Chnii. Jour.. .Hi U^OS), No. 2, pp. 163-165).— Analyses of 

 samples of a bowlder clay from soutliern Saskatclie\A-an to show the Aertical 

 distribution of soluble salts in the soil, the composition of the water-soluble 

 portion of the soil, and the chemical composition of the soil particles of differ- 

 ent sizes (sand, coarse silt, fine silt, clay) are reported. There was in all 

 cases a steady decline in soluble salts from the first to the sixth foot. The 

 principal constituents of the water-soluble material were sodium, magnesium, 

 sulphuric acid, and chlorin. The percentage of lime was smallest in the clay 

 particles and largest in the coarse silt. The percentage of iron and alumina, 

 potash, and jdiosphoric acid increased steadily from the sand to the clay. 



Soil surveys and agricultural maps in foreign countries and in Denmark, 

 K. RoROAM (Tid.s.skr. IjintlUkonoiii., I'.IOl, A'o.s. 10, pp. 531-56,i, fi(js. .'/ ; 11, pp. 

 608-616). — An address delivered befoi-e the Danish Royal Agricultural Society, 

 February 20, 11)07, with discussion of the same. Soil survey work in Denmark, 

 Scandinavia, Germany, Belgium, France, and England is referred to. 



Twenty-five years' work of the German Moor Culture Association, Wan- 

 GENHEiM and M. Fleischer (Illiis. Landic. Zt(j., .iS (1908), \os. /'/, ]). Ill, figs. 3, 

 map 1; 15, pp. 123, 12-'i). — Brief reviews of the work of this organization are 

 given, wuth a map showing the distribution of moor lauds in Germany. 



The Swedish Moor Culture Association and the Flahult moors, L. Gran- 

 UEAU {Jour. Agr. Prat., u. ser., I'l (lUOl), A'o*-. '/7. pp. 6-'i9-653, figs. 2; .'/S, pp. 

 680-68.',, figs. 3; 1,9, pp. 713-716, figs. 2; 50, pp. 7J,5-7J,7 ; 51, pp. 777-780, fig. 1; 

 52, pp. 808-810). — This is a statement regarding the work of this association 

 and an account of a visit to the moor culture station at Flahult, with descrip- 

 tions of the work in progress there. 



First principles of soil fertility, A. Vivian (Neiv York, 1908, pp. 265, figs- 

 93; rev. in Amer. Agr., 81 (1908). ^'o. 6, p. 150). — It is stated that this book is 

 intended primarily for home reading, but since it is made up largely from lec- 

 ture notes used by the author in a course in soil fertility it is believed that it 

 will be found a suitable text for short courses. It is written in nontechnical 

 language with free use of illustrations. The subjects treated include the atmos- 

 pliere and soil as sources of plant food, nitrogen as a plant food, origin of the 

 soil, tillage, drainage and irrigation, summer fallowing, humus and green manur- 

 ing, rotation of crops, manure and its preservation and application, relation of 

 barnyard manure to the maintenance of fertility, nature and use of commercial 

 fertilizers, purchase of fertilizers, and indirect fertilizers. 



The productiveness of the soil: Chemical factors, J. Graftiau {Ann. Gem- 

 bloux, 18 (1908), No. 2, pp. 89-107, figs. 2). — This is a general discussion of the 

 chemical factors of soil fertility intended to supplement a previous article by 

 Gregoire on physical properties of soils in their relation to productiveness (E. S. 

 R., 19, p. 1015). 



The influence of various salt solutions on the permeability of soils, D. J. 

 HissiNK {Chcm. Werh-hi., J, {1907), pp. 663-673; abs. in Chem. Zenthl., 1907, II, 

 No. 26, pp. 2071, 2072, fig. 1; Jour. Chcm. Soc. [London], 92 {1907), No. 51,2, II, 

 p. 98.',). — The results of percolation experiments with water, sodium chlorid, 

 potassium chlorid, ammonium chlorid, and calcium chlorid solutions through 

 soil in cylinders are reported. With distilled water and solutions of sodium and 

 potassium chlorids the permeabilitj' of the soil was decreased; when ti'eated 

 with solutions of ammonium and potassium chlorids the permeability was in- 

 creased at first, but finally decreased. 



Nitrogen content of soils as affected by methods of farming, A. R. Whit- 

 son, C. W. Stoddart, and A. F. McLf:o» {Wisconsin Hta. Rpt. 1907, pp. 25.',- 

 262). — This article rei)orts a continuation of observations begun in 190G (E. S. 



