by Paul Bartsch
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Contributions to the biology of the Phil...
The Philippine land shells of the genus ...
Shelled creatures and geological history
A monograph of the American shipworms
Experiments in the breeding of cerions
A new marine shell of the genus Xenophor...
The natural history of British shells
The shell book
Physiology of Molluscs
Geology and paleontology of Canal Zone a...
Shells (DK Handbooks)
Beautiful shells