CINCINNATI, OHIO

Edwin Smith, in the preface to his and Schlesinger's report of 1900 to the International Geodetic Association on the progress of the observatories started in 1899, remarks that:

". . . still another station has been established in the United States, at Cincinnati, Ohio. The astronomical observatory at that place happens to lie on the parallel of latitude chosen for the other stations. This favorable circumstance has led to the inauguration of a series of observations with the same object in view, and the work is being carried out by Mr. J. G. Porter, the director, using an instrument loaned by the Coast and Geodetic Survey."

The observatory in Cincinnati continued operations from 1899 to World War I when it had to close in 1915 due to financial considerations. It never reopened.