434 Scientific Intelligence. 
have only become what they are by nature herself having spread them 
over an immense expanse of country.” 
We remark, 1, that a view which we have more than once referred to, 
t. e, that variation is a result of domestication, and that there are no 
wild varieties (a view which essentially coincides with that of Jordan, as 
stated above), is sufficiently refuted by Decaisne’s experiments, For one 
of the four Pears of his experiments, the Sauger is a wild variety, or 
nearly so, and its seedlings were not behind those of the other sorts in 
amount of variation. And 2, although no varieties may not have yet been 
shown to degenerate while duly cared for, under continued propagation 
from buds, it does not follow that they would continue to exis 
perpetuity. It can hardly be otherwise than that the ewistence of @ spe- 
matter, which we are not able to explain. Ra Finis 
. On Welwitschia, a new genus of Gnetacee, by JoserH Hooker, 
M.D., F.RS., etc. pp. 48, tab. 14—This is a separate issue, in folio 
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