D58 



Selected Contents of Periodicals. 



[Jan., 



SELECTED CONTENTS OF 

 PERIODICALS. 



Agriculture, General and Miscellaneous. 



Agriculture as a Business, L. Smith Gordon. (Better Business, Nov . 



1920. ) [334(04); 338.1.] 



The Agriculture Act, 1920, C. B. Marshall. (Jour. Farmers' Club, April, 



1921. ) [347(e).] ^ 

 Intensive Cultivation, Prof. F. Keehle. (Eept. Brit. Assoc., 1920. 



Sect. M.) [63.191.] 



How Explosives help to develop Waste Land, A. W Wilson (A^r 

 Eng., Vol. 2, No. 6, 1921.) [63.12; 63.196.] 



Porecasting the Crops from the Weather, R. H. Hooker. (Quart. Jour. 

 Koj. Meteor. Soc, Vol. xlvii., No. 198, April, 1921.) 



[A review of the subject of correlation of weather and crops with refer- 

 ences.] [551.5.] 



The Weather and Cyclical Fluctuations, W. W. Bryant. (Econ. Jour., 



March, 1921.) [551.5.] 

 Hosten af Roefro i 1920 og Roefrohandelen i Vinteren 1920-1921, 



E. Lindhard and J. C. Lunden. (Tidsskrift for Planteavl, 27 Binds, 



5 Haefte, 1921.) [63.1951; 63.198.] 

 Xies Micro-organismes du Sol dans leurs rapports avec la Croissance des 



Plantes : Position actuelle du Probleme, E. J. Russell. (Ann. Sci. 



Agron., 38, No. 2, 1921.) [63.115.] 

 The Nature of Soil Acidity with regard to its Quantitative Determination, 



W. H. Maclntire. (Jour. Amer. Soc. Agron., Vol. 13, No. 4, 1921.) 



[63.113.] 



A Contribution to the Investigation into the Results of Partial Sterilisa- 

 tion of the Soil by Heat, Viscou7it Elveden. (Jour. Agr. Sci., Vol. xi, 

 Pt. 2, 1921.) [63.115.] 



Effect of Soil Temperature upon the Development of Nodules on the Roots 

 of Certain Legumes, F. R. Jones and W. B. Tisdale. (Jour. Agr. Res., 

 Vol. 22, No. 1, 1921.) [63.32; 576.83.] 



Relation of Potassium to Growth in Plants, T. 0. Smith and 0. Butler. 

 (Ann. Bot., Vol. xxxv. No. 138, April, 1921.) [63.161.] 



The Influence of Fertilisers containing Borax on the YieW of Potatoes 

 and Corn— Season 1920, A. W. Blair and B. E. Brown. (Soil Science, 

 Vol. xi, No. 5, 1921.) [63.161.] 



The Effect of Organic Nitrogenous Compounds on the Nitrate-Forming 

 Organism, E. B. Fred and A. Davenport. (Soil Science, Vol. xi. No. 5, 

 1921.) [576.83.] 



Emploi de CO2 comme Engrais atmospherique, R. Cerighelli. (Ann. Sci. 



Agron., 38, No. 2, 1921.) [63.168.] 

 Increasing the Efficiencv of Crude Calcium Cyanamide, M. Popp. (Deuts. 

 Landw. Presse, 1920, "p. 617 and Bied. Zentr., 50 (1921), pp. 216-220.) 



[63.167.] 



Uber die Diingewirkung der Kohlensaure, A. Gehring. (Fiihl. Landw. 



Ztg., Jahrg. 70, Heft 7/8, 1921.) [63.168.] 

 Experiments with " Radio " Manure. The Effect of Coaldust on Crops. 

 [A fertiliser composed of phosphate, burnt lime and coaldust, and 



claimed to be radio-active.] (N.Z. Jour. Agric, Vol. xxii, No. 3, 1921, 



p. 162.) [63.169.] 



Finely Ground Raw Phosphate — Notes and Opinions on its use in Agri- 

 culture. A. F. Ellis. (N.Z. Jour, of Agric, Vol. xxii. No. 6, 1921.) 

 [63.1672.] 



The Phosphate Industry, W. Packard. Part I. — Sources of Supply of 



Mineral Phosphate. Part II. — Superphosphates. (Jour. Soc. Chem. 



Ind., Vol. 40 (1921), No. 15, p. 288; No. 16, p. 304.) [63.1672.] 

 i. The Comparative Effects of Various Forms of Lime on the Nitrogen 



Content of the Soil, C. A. Mooers and W. H. Maclntire. ii. The Value 



of Liming in a Crop Rotation with and without Legumes, J. G. Lipman. 



iii. Liming as related to Farm Practice, F. D. Gardner. (Jour. Am. 



Soc. Agron., Vol. 13, No. 5, May, 1921.) [63.15.] 

 A Comparison nf Magnesian and Nonmagnesian Limestones, A. W. Blair. 



(Jour. Am. Soc. Agron., Vol. 13, No. 5, May, 1921.) [63.168.] 



