We shall require the photographs back, at least temporarily, but shall be glad also for the loan of the negatives of those photographs which have been selected. If you desire to have the positives returned to you as well as the negatives I have no doubt that permission of Council can be obtained, otherwise we shall bind them up with the original manuscript and preserve them in our archives as usual, a course which we should rather prefer.
Asst. Sec. R.S. [Assistant Secretary, Royal Society]'.