I finally corrected the first third of the old volume, which will appear on July 1st.

I hope and think I have somewhat improved it.

Very many thanks for your remarks; some of them came too late to make me put some of my remarks more cautiously.

I feel, however, still inclined to abide by my evaporation notion to account for the clouds of steam, which rise from the wooded valleys after rain.

Again, I am so obstinate that I should require very good evidence to make me believe that there are two species of Polyborus (317/2.