TY  - BOOK
AU  - Darwin, Charles,
AU  - Beagle, H. M. S.
TI  - Extracts from letter addressed to Professor Henslow: Read at a m eeting of the Cambridge Philosophical Society, 16 November, 1835. 
U1  - P 508.3 D37 
PY  - 1960///
CY  - Cambridge
PB  - University Press, Privately printed
KW  - Natural history
N1  - reprint of the original pamphlet
ER  -