PREFACE. Me 
The remaining part will contain the Bwalves, Mulu:- 
valves, and the Sub-Coronalia and Vermicularia of La- 
marck (the Brachiopoda and Tubicole of Cuvier): a 
figure of the entire shell, of each valve, and of the hinges 
and teeth, when at all complicated, will be given. The 
Animals and Fossil Genera will also be included. 
I beg to repeat that this Manual, as well as the others, 
has been compiled for those of my countrymen, whose 
remote situations in our colonies do not permit of their 
acquiring so desirable a species of knowledge, by the study 
of collections; as well as for those who, like myself, may 
cullivate Natural History, as the most agreeable delasse- 
ment to mathematical studies. 
Paris, November §, 1821. 
