70 



LXI. E. M. Crowther and W. B. Haines. "An Electrical 



Method for the Reduction of Draught in Ploughing/' 



The Implement and Machinery Review, 1924. Vol. 



L., pp. 1003-5. 



An account of the practical aspects of the work described in 



paper XXVI. 



LXI I. E. M. Crowther. " The Determination of Lime 



Requirements." Read before Agricultural Education 



Association, July, 1924. Agricultural Progress, 1924. 



Vol. II., pp. 80-84. 



The practical aspects of work discussed in papers XXVII.— 



XXX. 



LXIII. E. M. Crowther. " The Soils of Tropical Africa/' 



Empire Cotton Growing Review, 1925. Vol. II., pp. 



35-39. 



In response to enquiries from cotton growing centres, this 



article summarises the information on the nature of laterite soils, 



and the general question of the relation of soil type to climate 



and topography. Suggestions are made for the collection of 



simple data, essential for the preparation of soil maps. 



LXIV. H. J. Page. " The Utilisation of Waste Products 

 in Agriculture." Journal of the Ministry of Agri- 

 culture. 1924. Vol. XXX., pp. 910-918. 

 An article dealing with the utilisation of waste products such 

 as sewage, town refuse, seaweed, straw, and various industrial 

 wastes as fertilisers. 



LXV. H. J. Page. " Annual Report on Soils and Fertilisers 

 for 1923." Society of Chemical Industry. Annual 

 Reports on Applied Chemistry. 1924. Vol. VIII. 



LXVI. H. J. Page. " Annual Report on Soils and 

 Fertilisers for 1924." Society of Chemical Industry. 

 Annual Reports on Applied Chemistry. 1925. Vol. 

 IX. 



LXVI I. H. J. Page. " Agricultural Chemistry and 

 Vegetable Physiology." Annual Reports of the 

 Chemical Society. Vol. XX. 1924. 



LXVIII. H. J. Page. Sections on " Soils " and " Chemis- 

 try of the Living Plant," in " Biochemistry," by 

 H. J. Page and J. C. Drummond. Annual Reports oi 

 the Chemical Society. 1925. Vol. XXI. 



LXIX. E. J. Russell. " Monthly Notes on Manures." 



Journal of the Ministry of Agriculture. 1923. Vol. 



XXIX., pp. 944-948, 1043-1047, 1138-1141. 1923. 



Vol. XXX., pp. 554-557, 660-663, 756-758. 1924. 



Vol. XXXI.. pp. 873-875. 

 LXX. H. V. Garner. " Monthly Notes on Manures." 



Journal of the Ministry of Agriculture. 1923. Vol. 



XXX., pp. 861-864. 1924. Vol. XXX., pp. 953- 



959, 1057-1061, 1160-1164. 1924. Vol. XXXI., pp. 



79-85, 190-195, 672-677, 774-779. 



