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Excerpt from Publications of the United States Naval Observatory, Vol. 11 After the printer's copy was prepared it was examined and approved by the executive co

Excerpt from Publications of the United States Naval Observatory, Vol. 1 The present volume of observations of the United States Naval Observatory constitutes V

Excerpt from Publications of the United States Naval Observatory, Vol. 7 The observations from which the positions of this catalogue are derived were commenced

Excerpt from Publications of the United States Naval Observatory, Vol. 13 Volume is approved for publication. J. F. Hellweg, Captain, United States N avy, Super

Excerpt from Publications of the United States Naval Observatory, Vol. 9: In Four Parts, With Appendix; Part I After the preparation Of the printer's copy was f