208 ON THE MILK-SAP OF PLANTS. 



tropical nature necessitate black shades among them, and 

 that more than one Dragon watches these gardens of the 

 Hesperides. 



But I observe with dismay, that I have strayed far from 

 my original subject. Paletot and Mackintosh were the 

 watchwords of the strife ; the superiority of the latter was 

 to be my theme, but I have, indeed, wandered too far away 

 from it to think of returning to it here. 



