ASTRONOMY. 189 



pleted, he now iuteuus to devote himself to lunar work — the determina- 

 tion ofselenographical longitude and latitude of a large number of points 

 on the moon's surface by means of a valuable series of lunar photographs 

 at the observatory. Eeference is made, in addition to the Pleiades 

 work, to the existence of measures of some 250 stars in another cluster 

 made at the observatory a few years since, and to be shortly reduced and 

 published^ the particular cluster is not indicated in the report, but pre- 

 sumably may be M. 39 in Cygnus, described by Messier when he ob- 

 served it in 17'J4 as "a star-cluster of 1° diameter." {Mature.) 



Radcliffe Observatory . — Has made over 3,000 transit circle observa- 

 tions on the sun (103), moon (02), and stars. 



Savilian Observatory. — Is completing its photometry of naked-eye 

 stars, and has begun the triangulation of the lunar surfjxce. 



Temple Observatory, Rugby. — Measures of double stars are continued. 



Stonyhurst College Observatory. — Continues its meteorological work 

 and has made 281 drawings of the whole solar disk on 257 days. Atten- 

 tion is paid to the spectra of sun spots, and the protuberances are ob 

 served. 



Leyton Observatory (Mr. Barclay's). — Is about to publish its volume V. 



Mr. Common's Observatory. — Is about to erect a 5-foot reflector for 

 photography alone. The glass disk has been on hand since 1883 and 

 seems to be satisfactory. 



Lord Crawford's Observatory. — Vol. Ill is about to be issued. 



Mr. Crossley\s Observatory. — Has been become possessed of Mr, Com- 

 mon's 3-foot reflector. 



Lord Rosseh Observatory. — Has been employed in measures of lunar 

 radiant heat and in drawings of Jupiter and Mars. 



Colonel Tomline's Observatory. — Has observed the comets of the year. 



Colonel Tupman''s Observatory. — Has just been equipped with an 3^- 

 inch meridian circle, a 4^-inch refractor, and an 18^-inch reflector. 



Cape of Good Hope Observatory. — Its work is elsewhere described. 



Hong-Kong Observatory. — Is chiefly meteorological and for time-signals ; 

 but will soon possess a Cinch equatorial. 



The V. J. 8. der Astronomischen Gesellschaft for 1884 contains, as 

 usual, reports from the various European observatories. The following 

 notes are condensed from these reports, and give a connected account 

 of the activity of the various establishments for 1883 : 



Athens. — The Sun was observed on 355 days ; the Moon had 534 points 

 determined in its topography ; Jupiter was drawn Q'd times. 



A memoir on the comet of 3882 is nearly ready for printing; 39,400 

 comparisons of variable stars were made. . 



Berlin. — Dr. Becker has left the observatory to take charge of the 

 Gotha Observatory. 



The Zone + 20° to -|- 25° is finished so far as observations are con- 

 cerned. To determine the influence of the magnitude of the stars on 

 the deduced B. A., the transits of 247 stars were observed ou 13 eve- 



