TY  - SER
AU  -  Darwin, Charles, 
TI  -  The Formation of Vegetable Mould Through the Action of Worms : :  
AV  - QH 
PY  - 2000///
PB  -  Project Gutenberg, 
KW  -  Humification
KW  -  Soils
KW  -  Earthworms
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/2355
ER  -