Lamarck imagined that he had discovered this 'vera causa' in the admitted facts that some organs may be modified by exercise; and that modifications, once produced, are capable of hereditary transmission.
You have now arrived at a 'Vera Causa';--you have assumed a Cause which it is plain is competent to produce all the phenomena you have observed.
What he terms "natural selection" is not only a vera causa, but one proved to be capable of producing effects of the same kind with those which the hypothesis ascribes to it: the question of possibility is entirely one of degree.
What he meant by a vera causa Newton did not indeed very explicitly define; and Dr.
Lamarck imagined that he had discovered this vera causa in the admitted facts that some organs may be modified by exercise; and that modifications, once produced, are capable of hereditary transmission.
You have now arrived at a Vera Causa;--you have assumed a Cause which it is plain is competent to produce all the phenomena you have observed.
Are we so sure yet of a complete knowledge of all the forces at work as to exclude the chance of a vera causafor the second?
But I am now able to point out a vera causawhich affords a complete explanation of this period.
If we examine the common usage of the expression we shall probably find that what is meant by insisting on a vera causa is that we must have some evidence for the cause assigned outside the phenomena in question.
Now this is so far a vera causa that the action of fluid vortices is a familiar one: we have only to stir a cup of tea with a bit of stalk in it to get an instance.
The first of his Regulae Philosophandi laid down that the cause assumed must be a vera causa.
Till the 'substance' is tested experimentally it is not a vera causa.
Fraud is a vera causa, but an hypothesis difficult of application when it is admitted that the effects could not be caused by ordinary mechanical means.
His discoveries would still have been immense, if the cause which he assigned had not been a vera causa in the sense now contemplated.
But if this be what is meant by a vera causa, it appears strange to require that in all cases we should find such a one to account for all classes of phenomena.
We thus obtain an intelligible and tenable explanation of a vera causa; but then, by this explanation, its verity ceases to be distinguishable from its other condition, that it "suffices for the explanation of the phenomena.
This inference already contains hypothesis; but at least the supposed cause, the intestine motion of molecules, is a vera causa.
You have now arrived at a vera causa;--you have assumed a cause which, it is plain, is competent to produce all the phenomena you have observed.
It was perceived by some that natural selection by itself was not a vera causa, an efficient agent, but was passive, and rather expressed the results of the operations of a series of factors.
Natural selection, as the writer from the first has insisted, is not a vera causa, an initial or impelling cause in the origination of new species and genera.
They admit variation as a vera causa in one case, they arbitrarily reject it in another, without assigning any distinction in the two cases.
He who rejects it, rejects the vera causa of ordinary generation with subsequent migration, and calls in the agency of a miracle.
If the etymologies were accepted, no proof is offered to us of the actual existence, as a vera causa, of the process by which a saying.
Mr. Max Muller seems to think some proof of this process as a vera causa may be derived from 'Folk Riddles.
That this process of 'survival' is a vera causa, illustrated in every phase of evolution, perhaps nobody denies.
It will be seen that here no disease of language is involved, not even a volks-etymologie (a vera causa of myth).
So far, the cause which I suggest is a vera causa of collective group names.
On its being a vera causa, from the struggle for existence; and the certain geological fact that species do somehow change.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "vera causa" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
