Darwin\'s geologic development (Introduction)
by David Turell 
, Tuesday, February 26, 2013, 01:50 (4079 days ago)
The early years:-http://blogs.scientificamerican.com/history-of-geology/2013/02/24/darwins-tree-and-deep-time/?WT_mc_id=SA_DD_20130225
by David Turell , Tuesday, February 26, 2013, 01:50 (4079 days ago)
The early years:-http://blogs.scientificamerican.com/history-of-geology/2013/02/24/darwins-tree-and-deep-time/?WT_mc_id=SA_DD_20130225