268 BOTANICAL GAZETTE. [Oct., 
Cornuti the shorter hairs on the legs of insects are not readily 
caught, so that the number of parts to which the corpuscula may 
be attached are reduced toa minimum. For instance, the only 
parts on the leg of a hive bee which can remove the corpuscula 
of these species are the two claws and the pulvillus. The leg 
will thus remove three corpuscula, and since these bodies render 
useless the parts to which they are attached, the broken retina- 
cula not only take the place of the parts disqualified, but increase 
the number of parts to which the corpuscula can be attached. 
By means of these combinations, therefore, the leg of an insect 
13 Tbid. 191. 
