The passage in "Animals and Plants," to which he directs Mr.Weir's attention in reference to Carpenter's objection, is in Edition I., Volume I., page 405: "It is a most improbable hypothesis that the mere blood of one individual should affect the reproductive organs of another individual in such a manner as to modify the subsequent offspring.

The analogy from the direct action of foreign pollen on the ovarium and seed-coats of the mother plant strongly supports the belief that the male element acts directly on the reproductive organs of the female, wonderful as is this action, and not through the intervention of the crossed embryo." For references to Mr.
Galton's experiments on transfusion of blood, see Letter 273.) I would communicate it if you so decide.

You might give as a preliminary reason the publication in the "Transactions" of the celebrated Morton case and the pig case by Mr.Giles.You might also allude to the evident physiological importance of such facts as bearing on the theory of generation.

Whether it would be prudent to allude to despised pangenesis I cannot say, but I fully believe pangenesis will have its successful day.

Pray ascertain carefully the colour of the dam and sire.