BIBLIOGRAPHY 419 



GANONG, W. F. Textbook of Botany for Colleges. The Mac- 



millan Co., 1917. 

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blattfur Bakteriologie, 1909. 

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CHAPTER V 



CALKINS, G. N. Protozoology. Lea and Febiger, 1909. 

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Biological and Geological 

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CHAPTER VI 



BUCHANAN, E. D. and BUCHANAN, R. E. Bacteriology. Revised 

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FROST, W. D. and MCCAMPBELL, E. F. Textbook of General Bac- 

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MUIR, ROBERT and RITCHIE, JAMES. Manual of Bacteriology. 

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CHAPTER VII 



BOHM, A. A. and VON DAVIDOFF, M. A Textbook of Histology, 

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CHAMBERLAIN, C. J. Methods in Plant Histology. 3d edition. Uni- 

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DAHLGREN, ULRIC and KEPNER, W. A. Principles of Animal Histol- 

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GUYER, M. F. Animal Micrology. Practical Exercises in Zo- 

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KELLICOTT, W. E. General Embryology. H. Holt & Co., 1913. 



