A Guide 



to th< 



Sponge Alcove 



in the 



American Museum of Natural History 



By 

 ROY WALDO MINER 



Assistant Curator of Invertebrate Zoijlogy 



GUIDE LEAFLET No. 23 



REPRINTED FROM THE AMERICAN MUSEUM JOURNAL 

 Volume VI., No. 4, October, 1906 

 New York: Published by the Museum 



