CARNEGIE INSTITUTION OF WASHINGTON
MOUNT WtLSON SOLAR OBSERVATORY
PASADENA. CALIFORNIA
June 10, 1511
UBH
Professor Max Wolf,
Astrophysikalisohes Observatorium,
Konig st uhl-HeIdelberg,
Germany
Dear Professor Wolf:-
Some inquiry has been made recently for certain spectroscopic
and photographic observations on nebulae that you have made at various
times. None of these, however, seem to be in the library of the Solar
Observatory, and I am wondering if it would be possible for you to send
us such of these as have been published, or indeed any other publications
of the Heidelberg Observatoiy not at present on our shelves. The only
ones we have are: Publications, v.2, Nos. 1-12; v.3, Nos.1-8; Reports,
1302-8; Veroffentliohungen der grossherzogliohen Sternwarte zu Heidel-
berg, v.<3, Nos. 1 and 2 .
Yours very truly,
Superintendent Computing Division