276 Scientific Intelligence. 



books, a gain of nearly 168,000 for the year. The most important 

 accession of the year was a gift from the Chinese Government of 

 a set of the great Chinese Encyclopaedia, comprising over 5,000 

 volumes; this was brought to Washington by a special ambas- 

 sador. Another important gift is that of one hundred printed 

 volumes from the library of George Bancroft presented by Mrs. 

 J. C. Bancroft Davis. The Library has also issued the follow- 

 ing : 



Want List of Publications, 1 909, pp. 30. 



Publications issued since 1897. Pp. 48. January, 1910. 



Select List of References in Sugar, chiefly in its economic 

 aspects ; compiled under the direction of Hermann H. B. Meter. 

 Pp. 238. 



4. Harvard College Observatory : Edward C. Pickering, 

 Director. — Recent publications are noted in the following list 

 (continued from vol. xxviii, p. 565). 



Annals. Vol. LII, Part II. A Discussion of the Eclipses of 

 Jupiter's Satellites, 1903-1893 ; by Ralph Allen Sampson. Pp. 

 153-343, with 4 plates. 



Vol. LV, Part II. Maxima and Minima of Variable Stars of 

 Long Period ; by Annie J. Cannon, under the direction of 

 Edward C. Pickering. Pp. 99-291. 



Vol. LIX, No. V. Photographic Magnitudes of 76 Stars ; by 

 Edward S. King. Pp. 128-155. 



Vol. LXIX. Part I. Photometric Observations made with 

 the Fifteen-inch East Equatorial during the Years 1892 to 1902; 

 by Oliver C. Wendell. Pp. iii, 97. 



Vol. LXX. Durchmusterung Zones observed with the Twelve- 

 inch Meridian Photometer ; by Edward C. Pickering. Pp. vi, 

 235. 



Circulars. No. 149. Group of Red Stars in the Constellation 

 Sagittarius. Pp. 3. 



No. 150. A Standard Scale of Photographic Magnitudes. 

 Pp. 7. 



No. 151. 20 New Variable Stars in Harvard Map, No. 49. 

 Pp. 4. 



No. 152. New Variable Stars in Harvard Map, Nos. 2, 5, 32, 

 44, and 53. Pp. 3. 



Obituary. 



M. Serge Nikitin, geologist-in-chief of Comite Geologique of 

 Russia, died on the 1 8th of November, 1909. 



Dr. Shelford Bidwell, the English physicist, died on Decem- 

 ber 18 at the age of seventy-one years. 



