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In conclusion, therefore, we venture to point out that 
there are three methods by which the alternation of land 
and sea might be produced. That the greater number of 
facts point to a continued elevation of land by means of 
forces acting from the interior of the earth as the cause. 
That an examination of the fractured strata will show to 
what extent the elevation within modern geological 
periods has amounted. That there is no difficulty in finding 
a cause for the production of an elevating force, when we 
consider the density of the central portions of this globe, 
and believe it possible that this density may be decreasing. 
Or if we examine the other members of our system, and 
consider the conditions now transpiring upon their surfaces, 
and then find that there is a movement of our earth which 
appears to tend to the manifestation of the same conditions. 
In a short paper like the present, it is difficult to do little 
more than glance at the probabilities which we have had the 
honour to submit to the meeting. Nor is there time to 
discuss the value of the objections which may be urged 
against the views here put forward. 
Thanking the meeting for their attention, we beg to 
request the favour of their consideration upon the matter 
contained in this paper. 
