Subject ASC0000c2n
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.
v. 6 (1870), Page 61 (1870)
MBLWHOI Library
BHL Page 1936569
Keywords
fossil Microscopic view x100 Diatomaceuos forms Valve microscopic view x400 x500 Pleurosigma Validum