APPENDIX II 



BIBLIOGRAPHY 



The following short list of references will take the student to 

 some of the more important original sources of information on 

 each of the subjects treated of in this book. They have been 

 selected from among the great mass of papers that exist, not 

 because they are necessarily the most important, but as suggestive 

 in themselves, and likely to lead the student to make further 

 acquaintance with the methods as well as with the results of 

 research. Several of the papers also contain a series of references 

 to other workers in the same field. 



The Origin of Soils. 



i. Risler, E. — Ghlogie Agricole, 4 vols., Paris, 1884-97. 



2. Merrill, G. P. — Rocks, Rock Weatherings and Soils, New 



York, 1897. 



Analysis and Composition of Soils. 



3. Launfer and Wahnschaffe.— Mit, a. d. Laboratorium fur 



Bodenkunde, B. III., h. 2, Berlin. 



4. Petermann.— Recherches de Chimie le, III., Brussels, 1898. 



5. Hilgard, U.S. Dep. of Agric, Div. of Chem., Bull. 38, 1893. 



6. Hilgard, U.S. Dep. of Agric, Div. of Soils, Bull. 4, 1896. 



7. Hilgard. — Soils, The Macmillan Company, New York, 1906. 



8. Mitscherlich, E. A. — Bodenkunde fiir Land u. Forstwirte, 



1905. 



9. Lawes and Gilbert.— -Rothamsted Memoirs, V., No. 19. 



10. Dyer.—/. Chem, Soc, 1894, 65, 115. 



11. Dyer. — Phil, Trans., 194, B. (1901), 235. 



12. Dyer.— U.S. Dep. of Agric, Bull. 106, 1902. 



13. Hall, Plymen, and Amos.— Trans. Chem. Soc, 1902, 81, 



117 ; 1906, 89, 207. 



14. Hall.— "Analysis of Soil by the Plant,"/ Agric, Sci., 1905, 



1,65. 



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