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X 4- ’¡Jâî'iî
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literature, I have often been struck with
the great difference which they frequently
present. There is something in the study
of nature ever new, which has a tendency
both to invigorate and to tranquillize the
mind ; and we find that the lives of men
of science have generally been happy, and
their deaths peaceful, while the lives o f
men exclusively devoted to polite literature,
have too often been embittered by envy,
jealousy, ennui, and disappointment.
APPENDIX.
O B S E R V A T IO N S ON T H E G EO LO G Y O F T H E A L P S
A N D T H E S T R A T IF IC A T IO N O F T H E C A L C A R
EO U S M O U N T A IN S .
I t was my original design to have entered
at some length into a description o f the
stratification of the calcareous mountains
on the northern side of the Alps,
which I studied with considerable attention
; I had also spent much time in
taking illustrative sections. On reflection,
I am convinced that the subject, though
important to the geologist, would be dry
and uninviting to the general reader, and
would, beside, require a considerable expence
in engravings, wooden cuts being too
small and indistinct to represent geological
sections of much extent. I shall, therefore,
content myself for the present with giving