420 Scientific Intelligence. 



4. Harvard College Observatory ; Edward C. Pickering, 

 Director. — Recent publications from the Harvard College Observ- 

 atory are noted in the following list (continued from p. 269): 



Annals. — Yol. LVIII, Part III. Observations and Investiga- 

 tions made at the Blue Hill Meteorological Observatory, Massa- 

 chusetts, U. S. A., in the year 1905 under the direction of A. 

 Lawrence Rotch. Pp. 147-228, 2 plates. 



Vol. LIX, No. III. Lunar Photometry and Photographic Sen- 

 sitiveness at Different Temperatures ; by Edward S. King. Pp. 

 63-94. No. IV. Photographic Magnitudes of Bright Stars ; by 

 Edward S. King. Pp. 95-126. 



Vol. LXI, Part II. A Search for a Planet beyond Neptune ; 

 by William H. Pickering. Pp. 113-162. 



Vol. LXVIII, Part I. Observations and Investigations made 

 at the Blue Hill Meteorological Observatory, Massachusetts, 

 U. S. A., under the direction of A. Lawrence Rotch. Pp. 92, 

 xi plates. 



Circulars — No. 143. Stars having Peculiar Spectra. 28 New 

 Variable Stars. Pp. 4. 



No. 144. Ephemeris of Morehouse's Comet (1908 a), for 1909. 

 Pp. 3, 2 plates. 



No. 145. A sixth Type of Stellar Spectra. Pp. 4, 2 plates. 



No. 146. The Constellation Camelopardalis. Pp. 3. 



No. 147. Distribution of the Stars. Pp. 4. 



No. 148. Morehouse's Comet, 1908 c. Pp. 3, 2 plates. 



Sixty-third Annual Report of the Director of the Astronomical 

 Observatory of Harvard College for the year ending September 

 30, 1908; by Edward C. Pickering. Pp. 10. 



5. Publications of the Allegheny Observatory of the Univer- 

 sity of Pittsburgh. — Recent publications from the Allegheny 

 Observatory are as follows (see also p. 270) : 



Vol. I, No. 10. The Orbits of the Spectroscopic Components 

 of a Virginis : by Robert H. Baker. Pp. 65-74. 



No. 11. The Orbits of the Spectroscopic Components of u 

 Herculis : by Robert H. Baker. Pp. 77-84. 



No. 12. The Orbits of a Coronae Borealis : by Frank C. 

 Jordan. Pp. 85-91. 



No. 13. The Orbits of the Spectroscopic Components of 2 

 Lacertse; by Robert H. Baker. 



No. 14. On the Errors in photographing Positions caused by 

 observing through glass; by Frank Schlesinger. 



6. The Brooklyn Institute of Arts and Sciences. — The following 

 has b en recently issued : Cold Spring Harbor Monographs, VII. 

 The Fresh Water Cyclops of Long Island : by Esther F. Byrnes. 

 Pp. 43 with 15 plates. Brooklyn, March, 1909. 



Obituary. 



Dr. Persifor Frazer of Philadelphia, author of papers on 

 chemistry, mineralogy and geology, died on April 7 in his sixty- 

 fifth year. 



