XXVI 
remedy ; and the priests of ancient religions, as an 
object acceptable to the gods. 
After this rapid sketch of Polypidomean history, 
it may be easy to comprehend how bounded is our in- 
formation in this department of nature : the most that 
we do know, is nothing in comparison to what we do 
not know. It is therefore to draw the attention of 
intelligent men to these new objects of Natural His- 
tory that I have been induced to publish this work, 
in which I have endeavoured to unite the remarks of 
my predecessors, and to augment the domain of 
science by some new observations of my own. 
J. V. F. Lamouroux. 
MEASURES. 
1 Metre . 
1 Decimetre 
5 Centimetres . 
10 Millemetres . 
. 40 inches. 
4 inches. 
. 2 inches. 
1 centimetre. 
