Universitätsbibliothek Heidelberg, Heid. Hs. 3695 EP 52,10 Pickering, Edward Charles; Wolf, Max [Adr.]: Briefe von Edward Charles Pickering an Max Wolf: Brief von Edward Charles Pickering an Max Wolf (Cambridge, Mass., 12.9.1909)

HARVARD COLLEGE OBSERVATORY,

CAMBRIDGE, MASS.

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Dear Professor Wolf
MY hearty congratulations on your discovery of Halleys comet.
It is a fitting reward for your long continued and laborious work.
While greatly regretting Valentiner's illness, i am very glad that me
two observatories at Heidelberg; are now united and under your direction
1 wish you all success in his important position. Since Heidelberg
versity honored me with a degree,! take a strong personal interest
in its progress and welfare.