Agriculture. 



Wickham, H. A. Para Indian 

 Rubber: Plantation, Cultivation, 

 and Curing. 8vo. Pp.178. 1908. 

 KeganPaul. 3s. Qd. 



Woodroffe , J . F . , and Smith , H . H . 



The Rubber Industry of the Amazon , 

 and How Its Supremacy can be 

 Maintained . Demy 8vo / Pp . 483 . 

 1915. Bale & Danielsson. 21s. 



xii. SOILS AND FERTILISERS. 



Collins, S. H. Plant Products and 

 Chemical Fertilisers. Demy 8vo. 

 Pp.252. 1919. Bailliere. 10s. Qd. 



Chemical Fertilizers and Parasi- 

 ticides : Sources , Manufacture , Uses , 

 and their Future . Demy 8vo . Pp . 

 285. 1920. Bailliere. 10s. Qd. 



Fritsch, J. The Manufacture of 

 Chemical Manures. Translated 

 from the French. 2nd edn. Re- 

 vised by H. B. Stocks. Svo. Pp. 

 395. 1920. Scott, Greenwood. 

 15s. 



Griffiths , A . B . A Treatise on Man- 

 ures : or the Philosophy of Manur- 

 ing. 3rd edn. Cr. Svo. Pp. 450. 

 1892. Pitman. 7s. Qd. 



Hall , Sir A . D . Fertilisers and Man- 

 ures Large Cr . Svo . Pp . 384 

 1919. Murray. 8s. 



The Soil. An Introduction to 



the Scientific Study of the Growth 

 of Crops . 3rd edn . Large Cr . Svo . 

 Pp.352. 1920. Murray. 8s. 



JCnox, G. D. The Spirit of the Soil. 

 Cr. Svo. Pp. 255. 1915. Con- 

 stable. 2s. Qd. 



Murray, J. A. Soils and Manures. 

 2nd imp. Ex. Cr. Svo. Pp. 367. 

 1919. Constable. 8s. Qd. 



Russell, E. J. The Fertility of the 



Soil. Roy.lGmo. Pp.128. 1913. 



Cambridge University Press . 2s. Qd. 

 Lessons on Soil . Cr . Svo . Pp . 



148. 1912. Cambridge University 



Press. 3s. 



A Student's Book on Soils and 



Manures. 2nd edn. Cr. Svo. Pp. 

 240. 1919. Cambridge University 

 Press . 8s . 



Manuring for Higher Crop 



Production. 2nd edn. Demy 

 Svo. Pp.78. 1916. Cambridge 

 University Press. 4s. Qd. 



Soil Conditions and Plant 



Growth. New edn. in preparation . 

 Longmans . 



Sornay, P. de. Green Manures and 

 Manuring in the Tropics. Trans- 

 lated from the French by F. W. 

 Flattely. Roy. Svo. Pp. 460. 

 1916. Bale & Danielsson . 16s. 



Vendelmans , H . The Manual of 

 Manures. Cr.Svo. Pp.190. 1916. 

 Country Life. 5s. 



Ville, G. Artificial Manures: Their 

 Chemical Selection and Scientific 

 Application to Agriculture. Re- 

 vised by Sir William Crookes and J. 

 Percival. Svo. Pp. 386. 1909. 

 Longmans, lls. Qd. 



Warington , R . The Physical Prop- 

 erties of Soil . Svo . Pp . 232 . 1900 . 

 Oxford: Clarendon Press. 7s. Qd. 



Warrell , C . The Science of the Soil : 

 for Farmers and Land Workers . Cr . 

 Svo. Pp. 16S. 1920. Pitman. 

 3s. Qd. 



