Via PREFACE 



quillwort for illustration), a pine (with other conifers and 

 Cycas, Zamia and Ginkgo for illustration). 



Many of the illustrations are new and were made especially 

 for this book, the photographs being made by the author and 

 the drawings by Mr. Frank Rathbun under the author's super- 

 vision. Acknowledgments are due to Messrs. Ginri and Company 

 for the use of a few illustrations from Bergen and Davis's Prin- 

 ciples of Botany and from the author's First Studies in Plant 

 Life; to D. Appleton & Co. for the use of a few illustrations 

 from Coulter's Botany; and to the Bureau of Forestry and the 

 Bureau of Plant Industry, U. S. Dept. of Agriculture, for some 

 photographs which are acknowledged in connection with the 

 illustrations. 



G. F. A. 



CORNELL UNIVERSITY, April, 1910. 



PREFACE TO THE SECOND EDITION. 



The principal changes in this edition are, simplification of 

 some passages in the book; the transferring of the study of 

 bacteria and yeast to the second part (Morphology); the 

 addition of an introductory chapter on the plant, its parts and 

 organization; another chapter on the parts of the flower in- 

 tended for reference or special assignment, which is placed 

 before the study of flowers. A glossary of terms used in the 

 book has also been added; the pronounciation in the more 

 difficult cases is indicated. 



G. F. A. 



CORNELL UNIVERSITY, Feb., 1912. 



