24 
A Paper was read by the Rev. W. N. Molesworth, M.A., 
entitled, “ On the Origin of Species.” 
The Author of the Paper stated that he was neither the 
advocate nor the antagonist of Mr. Darwen’s theory ; but that 
he wished to point out the futility of some of the arguments 
which had been made use of against it, to suggest some 
additions which he thought necessary to give it completeness, 
and to ask for it that it should be considered in that spirit of 
philosophical calmness with which it had been proposed by its 
Author. 
After giving a brief sketch of Mr. Darwen’s theory, for the 
purpose of keeping its more salient points before the minds of 
the audience, and to enable them to follow' the remarks he was 
about to make on it, he pointed out the difficulties which had 
given rise to it, and the classes of facts which it aimed at 
explaining. He showed that, regarded as a scientific hypo- 
thesis, it possessed a value which was altogether independent 
of its truth or erroneousness, and that the discussion of it 
would in all probability lead to important scientific results, 
whatever might be the ultimate fate of the hypothesis itself. 
He then proceeded to consider some of the objections which 
had been made to it ; but the greater part of the Paper was 
devoted to the purpose of pointing out, at considerable length, 
the influence which changes in the conditions of existence 
must have in producing variation. He dwelt on the distinction 
between variability and a tendency to variation, showing the 
former to be a quality inherent in the organised being, and 
the latter to be generally a consequence of changes in its 
conditions of existence ; and he quoted some passages from 
Darwen’s work to show that in this respect the theory was 
defective and required further elaboration. He concluded by 
expressing his entire approval of the rule of the Society which 
prohibited the consideration of the theological bearings of the 
question, a rule which he regarded not merely as a regulation 
of wise expediency, but as the embodiment of a great principle, 
