Wilbert Smith Archives Files Box 1136 02 1136-02-p005

Document Text (OCR)

most of the cases so listed are simply those in which the information available does not provide an adequate basis for analysis. In this connection it is important also to note that no unidentified objects other than those of an astronomical nature have ever been observed during routine astronomical studies, in spite of the large number of observing hours which have been devoted { to the sky. As examples of this the Palomar Observatory Sky Atlas contains some 5000 plates made with large...