Heidelberg, Universitätsbibliothek Heidelberg, Heid. Hs. 3695 EF 70,17 Frost, Edwin Brant; Yerkes Observatory; Wolf, Max [Adr.]: Briefe von Edwin Brant Frost an Max Wolf: Brief von Edwin Brant Frost von Yerkes Observatory an Max Wolf (Williams Bay, Wisconsin, 2.7.1924)

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July
1 9
(UBfT)
My dear Professor Wolf:

I thank you for your kind letter of April 22nd,
with the suggestions of names of certain individuals. I
did not write earlier because the question was still in
suspense, although I had reached a conclusion myself as to
the proper nomination to make. I am glad to be able to
say that the Trustees of the University of Chicago have
appointed Dr. Frank E. Ross to the assistant Professorship
now vacant. He will begin his duties here on October 1st.
He has been for the past nine years an expert in the Research
Laboratory of the Eastman Company at Rochester, New York,
where he has designed new lenses of very wide field and has
made important researches on photographic films, etc. He
was for some years director of the Latitude Observatory at
Gaithersburg, Maryland, and he designed and put into
successful operation a photographic zenith telescope. In
earlier years he assisted Newcomb in his work in celestial
mechanics and was an assistant on the Nautical Almanac.
He will probably design for us a new lens to take ti.e
place of the 6-1/4 Voigtlaender, so long used by Professor
Barnard. I shall send you a copy of the tenth edition of
oar descriptive pamphlet, which will be issued within a
few days.

I hope that your health is greatly improved and that
you are having some warm weather and clear skies. It has been
very wet and cold here, particularly during May and June.
We hud only 71 hours of observing at night during June, which
is not much more than half of our normal number of hours
with the 40-inch telescope at night in June.

My oldest son,* aet. 22-1/2, was married last Saturday
to a young lady to whom we have long been attached and they
are now in California, where he will work ano study in paleo-
botany.
I hope that Mrs.
health.
With tae kindest

Wolf and your sons are m

good

regards,
Very sincerely yo

Herrn Prof. Dr. Max Wolf
Landes-Sternwarte
Kgnigstuhl-Heidelberg
Germany

Edwin B. Frost
Director