SECT. VII. APPENDAGES. 301 



leaves, and calyx of the Cicer arietinum he ob- 

 served a number of small globules of water, which 

 were most conspicuous about mid-day, and which 

 when wiped off appeared again in the course of 

 some hours. They were formed at the extremity 

 of the hairs, and were again reproduced even when 

 the summit was cut off, though somewhat more 

 slowly than in those that were entire. They were 

 also again reproduced even when the one half of 

 the hair was cut off, though still more slowly than 

 before. But when the hair was cut off at the base 

 they were no longer reproduced at all. Whence 

 Deyeux concluded that they are also organs of 

 secretion.* 



CHAPTER II. 



COMPOSITE ORGANS. 



FROM the previous analysis of the plant, the Enumera- 

 decomposite organs have been found to be reducible, 

 in the first place, to one or other of the several fol- 

 lowing substances : namely, epidermis, pulp, pith, 

 cortical layers, ligneous layers, vegetable fibre ; 

 which now remain 'to be farther analyzed, under 

 the title of Composite Organs, as being still com- 

 pound, with a view to reach the ultimate and 

 elementary organs of the vegetable subject, 



* Jour, de Phys. No. xlvi. p. 3fr5. 

 1 



