BRARIES SMITHSONIAN INSTITUTION NOIiniIlSNl"'NVINOS 



^- 



)iiniiis 



QL 

 669 



] M36 

 1885 

 Kept 



Marshall, Arthur Milnes, 

 1852-1893. 



The frog : an introduc- 

 tion to anatomy and histo- ^^^ 



^ITHS 



logy 



•ill 



)S 



--^^ 



jy ■ m V3- 





SMJTHSONIAN^INSTITUTION NOIinillSNI NVINOSh 



