Page 24: ) added after 'uniformitarianism' to create matching pair

Pages 33, 171: Inconsistent spelling of Thomson/Thompson as in original.

Page 59: Missing anchor [50] added after dogmatise as this seemed the most likely place

Page 80: " changed to ' after [76] to create matching pair

Page 89: his changed to His in his theories delighted me

Page 94: eniment corrected to eminent

Page 102: re-stocked standardised to restocked

Page 111: . added after September 1855

Page 149: . added after plants and animals

Page 157: lifelong standardised to life-long