My dear M^r Trimen

You are always most kind in aiding me. The argument of the Lasiocampa strikes me as very good—but what an intricate subject it is!—² I have had excellent letters from Stainton & Bates.³ The latter is much staggered.— Have you ever heard or observed other cases like the Lasiocampa. I think I have seen in England many Butterflies pursuing one.—⁴

But here comes a doubt   may not the same male serve more than one female. I think I will write to D^r. Wallace of Colchester.—⁵

My women-kind have insisted on coming to London for all March, much to my grief; but I shall get some good, for I shall see some of my friends, & you amongst the number.—⁶

With very sincere thanks | Believe me | Yours very sincerely | Ch. Darwin

I shall go doggedly on collecting facts througout the animal kingdom, & possibly at the end some little light may be acquired.— I am getting some of the chief domestic animals tabulated.⁷