VEGETABLE ORGANOGRAPHY. 



INTRODUCTION. 



To proceed with regularity in the description of the 

 organs of plants, two absolutely different courses are 

 presented to us. We can, in fact, after the example of 

 Grew and Malpighi, examine successively each of the 

 parts which offer themselves to us at first sight, and 

 look for the elementary organs of which they are com- 

 posed ; or, following the route traced by Duhamel, 

 Senebier, and most modern botanists, we can first study 

 the elementary organs which are common to all plants 

 and all parts of plants, and afterwards consider how 

 their combinations form the different parts of vegetables. 



VOL. I. B 



