TY  - BOOK
AU  - Butler,Samuel
TI  - Luck, or Cunning, as the Main Means of Organic Modification
AV  - PR 
PY  - 2004///
PB  - Project Gutenberg
KW  - Evolution
KW  - Natural selection
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/4967
ER  -