There are two Register to the "Annalen der Physik u. Chemie" ['Annalen der Physik und der physikalischen Chemie'] which we have not revised here, but which we should be very glad to have - one is Sachregister zu Bd. 1-35 (1877-88) - (The corresponding Namenregister is already possess.). The other is Sachregister Bd 1-160 (1874-77). If these Indexes could be furnished us they would be of very great use in our Library and the Society would be greatly obliged for the gift.
Yours very truly
A H White
Asst Lib RS [Assistant Librarian, Royal Society]'.