Autograph letter signed : Zurich, to Erwin Finlay Freundlich, [1912] Oct. 27.

Thanking Freundlich for his detailed report, and regretting that the photographs lack the precision necessary to make measurements. Noting that he recently asked the astronomer in Zurich whether the measurements could be taken during bright daylight (as proposed by Freundlich), and that the astronomer did not believe it possible, but assuring Freundlich that Einstein is not convinced the Zurich astronomer is right. Doubting whether the photographs can be made in Babelsberg, due to the poor the clarity of the atmosphere. Mentioning that his own theoretical efforts are progressing well, after a period of difficultly, and that he fully expects to have finalized the equations of the general dynamics of gravitation in the near future. With a postscript hearkening back to Freundlich's research, wondering whether immediate observation (though less precise) might be preferable to using photographic plates.