12 INTRODUCTION. 



DeBary, A. Comparative Morphology, and Biology of the 



Fungi, Mycetozoa, and Bacteria. The Clarendon Press, 



Oxford, 1880. 



Goebel, K. Organography, Vols. I and II. Oxford, 1900. 

 Outlines of Classification and Special Morphology. 



Oxford, 1887. 

 Gray, Asa. Manual of Botany, 6th edition. American 



Book Co., New York. 

 Grout, A. J. Mosses with the Hand-lens. Published by the 



author, New York, 360 Lenox Road, Flatbush, 1900. 

 Pfeffer, W. The Physiology of Plants, translated by A. J. 



Ewart. 2 vols. Clarendon Press, Oxford, 1900. 

 Small, J. K. Flora of the Southeastern States. Published by 



the author, New York, 1903. 

 Strasburger, Noll, Schenck, and Schimper. A Text-book of 



Botany, 2d edition, translated by Long. The Macmillan 



Company, New York, 1903. 

 Underwood, L. M. Our Native Ferns and their Allies. Henry 



Holt & Co., New York. 



Moulds, Mildews, and Mushrooms. Henry Holt & 



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There should also be a good collection of separate publi- 

 cations on special topics. The habit should be formed of 

 reading the text discussions upon the topics presented in 

 the laboratory. It will often be found necessary to com- 

 pare descriptions and to attempt to account for variations 

 and contradictions in the statements made, since in many 

 cases the material observed by the student will not show 

 the same things as did that upon which the text statement 

 was based. It will be found advantageous if the text work 

 is upon definite topics related to the laboratory work, 

 rather than a study of the text chapter by chapter as pre- 



