10 
ME.MOm OF PENNANT. 
Anatomists mention (besides these) a tliird very won- 
derful contrivance for tlieir security, and inform us, 
tb o each eye is furnished with a certain muscle, by 
which the animal has the power of withdrawing or 
exserting them, according to its exigencies. 
“ To make amends for the dimness of its sight, 
the mole is amply recompensed by the great perfec- 
tion of two other senses, those of hearing and smell- 
ing. The first gives it notice of the most distant ap- 
proach of danger : the other, which is equally ex- 
quisite, directs it in the midst of darkness to its food 
The nose, also, being very long and slender, is well 
formed for ilirusting into small holes, in search of the 
worms and insects that inhabit them. These gifts 
may, with reason, he said to compensate the defects 
of sight, as they supply, in this animal, all its wants, 
ami all the purposes of that sense.” 
An appendix is also added, containing much in- 
formation from the older writers, with notices of ad- 
ditional British species, which are to this day rare. 
There is also a paper upon the migration of birds, 
wherein he strongly recommends the study of natu- 
ral history to the clergy, as a relaxation to beguile 
the time not occupied with more arduous and im- 
portant studies. 
During the progress of this work. Pennant made 
a tour to the continent, where he met with many of 
the most noted foreign naturalists, and commenced 
an acquaintance and correspondence which was of 
much use to him. He visited the Count de BulFon 
