Heidelberg, Universitätsbibliothek Heidelberg, Heid. Hs. 3695 EP 52,13 Pickering, Edward Charles; Wolf, Max [Recp.]: Briefe von Edward Charles Pickering an Max Wolf: Brief von Edward Charles Pickering an Max Wolf (Cambridge, Mass., 10.7.1912)

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HARVARD COLLEGE OBSERVATORY,
CAMBRIDGE, MASS.

July 10,

UBH

1912.

Professor Max Wolf,
The Observatory,
Heidelberg, Germany.

My dear Professor Wolf:-
The copies of your negative of MT reached me
safely. I thank you heartily for your courtesy. I am making some
studies for comparison of the trail of the asteroid with the round
images of the stars. Leuschner will be here this afternoon, and I