PREFACE 



print a catalogue!" . . . Nevertheless I can assure the careful reader 

 that all of us who have labored in the present work have, like Epicte- 



tus, "tried inces^aiithj to he accurate — a7id by this means escaped at 

 least a few errors!" 



Bashford Dean. 



American Museum- of Natural History, 

 October 27, 1916. 



