PLANT-AUTOGRAPHS—BOSE. 431 
exploited in a temperance lecture. The next record is in the nature 
of an anticlimax, where the plant has drunk (pure water) not wisely 
but too well. The gorged plant is seen to have lost all power of 
Fic. 8.—Effect of carbonic acid gas. 
Fic. 9.—Effect of vapor of alcohol. 
movement. I was, however, able to restore the plant to normal 
condition by extracting the excess of liquid by application of glycerin. 
(Fig. 10.) 
UNIVERSAL SENSITIVENESS OF PLANTS. 
It may be urged that the various reactions of irritability may 
hold good only in the case of the particular plant Mimosa, and that 
the majority of plants are quite insensitive. I shall presently show 
