SIXTH ANNUAL RECEPTION. 69 



29. Photographs of ancient Chinese instruments. 



30. Loewy and Puiseaux's latest enlargements of photo- 

 graphs of the Moon, taken with the Paris Equatorial 

 Coude. 



Publications of the Observatory Staff : 



31. a. Vol. I. Rutherfurd's Stellar Photographs by Rees, 

 Jacoby, Davis and Schlesinger. 



b. Astronomical Journal, Nos. 401 and 451, giving "The 

 Variation of Latitude at New York and a determination 

 of the constant of aberration from Observations at the 

 Observatory of Columbia University" by Rees, Jacoby 

 and Davis. 



€. Bulletin Imperial Academy of St. Petersburg on " Pho- 

 tographic Researches near the Pole of the Heavens," 

 by Jacoby. 



d. Contributions Nos. 12, ij and 14. from the Observatory 

 of Columbia University on " A Catalogue of 65 stars 

 near 61 Cygni," " The parallaxes of 61^ and 61' 

 Cygni," and "A catalogue of 34 stars near Bradley 

 3077," by Davis. 



e. Contribution No i^ from Observatory of Columbia Uni- 

 versity on " The Praesepe Group : Measurement and 

 Reduction of the Rutheifurd Photographs," by Franlc 

 Schlesinger. 



32. Elements of DQ— (433) Eros— with projection of 

 orbit on ecliptic plane with Mars and Earth. 



2sZ- Path of pole of axis of Earth's figure around axis of 

 rotation. Exhibited by Dr. S. C. Chandler, of Cam- 

 bridge, Mass. 



34. Glass positives showing spectroscopic proof of iron, 

 etc., in the Sun. Exhibited by Professor J. S. Ames, ' 

 Johns Hopkins University. 



35. Glass positives showing rotation of the Sun by dis- 

 placement of lines in spectrum (Doppler principle). 

 Exhibited by Professor J. S. Ames, of Johns Hopkins 

 University. 



