HARVARD CoEI.EGE OBSERVATORY,
CAMfB-GDGE, MASS.
April 5, 1906.
UBH
Professor Dr. Max Wolf,
Director Astrophysical Observatory,
Koenigstuhl-Heidelberg, Germany.
Dear Sir:-
In response to your post card of March 16. I take
pleasure in sending to the Astrophysical Observatory, Heidelberg
through th;. Smithsonian Institution, copies of Vola. 18, 27, and
4J el oui Annals, ul^c a pamphlet givi"-" - list of ths Annals
now published. If there are any volumes which would be of use
to the Astrophysical Observatory, I ^hould be glad to send such
of them as are available.
Very truly yours,
Director^