LOOKING-GLASS. 
J97 
Vation, as not only their heads, but other parts, are 
vifible to the naked eye ; even growing mufcles are 
to be Teen in fome of them, with a full growth of 
fliells in fpires, by which the grub’s age may be 
afcertained ; but men have generally admired more 
this worm’s cabin than himfelf, on account of its 
gaudy colours, and beautiful ftru6ture. The ad- 
mirers of Nature, after having done juhice to his 
tafte and ingenuity, will, however, indulge a train 
of thoughts about the method ufed by fuch a puny 
creature, to execute that mafter-piece of architec- 
ture in a llyle of elegance and inimitable perfec- 
tion. 
6thly. The zoophytes, or fea-polypufes, have been 
confidered as vegetables for many ages ; but fome 
naturalifts now pronounce them to be the inter- 
mediate link in Nature’s chain between the animal 
and vegetable worlds. Be that as it may, we la- 
ment that this branch of natural hiftory has not 
been cultivated with fuch fuccefs, as to excite a 
ftronger intereft, that might tend equally to gratify 
curiohly, and produce ufeful difcoveries. 
O 3 
i 
ESSAY 
