272 Geology and Mineralogy of the 
the same family, but their diversity of form indicates differ- 
ent organizations and consequent faculties and habits. It is 
remarkable that these remains have no processes, nor place 
of insertion for other bones. 
» Quebec, March 25, 1821. 
Extract from. the letter which accompanied the preceding 
; memoir. 
Possibly too a stress has been laid on limestone of 
recent een d in contact with granite without 
observing i its énalinat tion 
The want of a more ‘dered Topography of these dis- 
tricts is greatly felt: from its length and tediousness, it is 
incompatible with the plan and interests of a periodical 
work. J hope the epitome I have prefixed willsuffice. It 
would have ieee impossible to — furnished engravings 
for all the organic remains—their description occupies fifty 
six pages. Topography and Geology with its appen- 
dix fill one honed and twenty pages of matter equally con- 
densed with those now before you. This has been present- 
ed to the Earl of Dalhousie. 
e do not think so; this fact as well as many others mentioned by Dr: 
Bigsby is very curious and interesting.—[ Ed. | 
