PREFACE. 



He has written this volume on the organography and 

 physiology of the Phanerogamia, in the hope that it will be 

 generally useful, but with an especial reference to the wants 

 of medical students and physicians : life probably exists 

 under the simplest andleast complicated condition in plants. 



The author ventures to hope that this volume, (which he 

 has been encouraged to prepare,) will be found equally as 

 interesting as the one already published, and contain such an 

 amount of original and well-selected matter as will render it 

 worthy of that liberal patronage which has been bestowed on 

 his previous labors. 



