TO T.H.HUXLEY.

Down, July 9th, 1857.
I am extremely much obliged to you for having so fully entered on my point.

I knew I was on unsafe ground, but it proves far unsafer than I had thought.

I had thought that Brulle (52/1.

This no doubt refers to A.
Brulle's paper in the "Comptes rendus" 1844, of which a translation is given in the "Annals and Mag.