18 i RECORD OF SCIENCE FOR 1887 AND 1888, 



subsidiary apparatus there is u cylindrical cliroiiograi)li, Barrnud & 

 Lund ; a tillet chronograpb, made in 1867 by direction of Commodore 

 Maury; a sidereal clock, by F. Vazquez, Mexico; sidereal and meau-time 

 clocks, by Barraud & Lund; two sidereal chronometers, by Negretti & 

 Zambra; seven mean time chronometers, by various makers, and mag- 

 netic and meteorological instruments. A photographic refractor of 

 0'".33 (13 inches) aperture and 3"'.43 (11 feet) focal length has been or- 

 dered from Grubb, to enable the observatory to co-operate in the inter- 

 national plan of charting the sky by photograjjhy. The personnel con- 

 sists of Sr. Ingeneiro Angel Anguiano, director; Sr. Ingeneiro Felipe 

 Valle, Sr. Lieut. Col. Teodoro Quintana, Sr. Ingeneiro Francisco Eodri- 

 guez Rey, Sr. Ai)olonia Romo, Sr. M. Moreno; two more astronomers 

 ■will be added during 1S89, The work of the meridian circle has been 

 upon comparison stars, comets, and asteroids; the 15-inch equatorial 

 has been used upon comets, and asteroids, and these bodies, as well as 

 a list of southern nebuhii, will be carefully observed in future. The 

 photoheliograph has been used almost daily, and with the alt-azimuth 

 observations for time and latitude have been made, and observations of 

 lunar culminations and of comets. Considerable time has been devoted 

 to co-operating with longitude parties. The ])osition of the observatory 

 is: Latitude, +19° 24' 17".5; longitude, C' 3'"' 46^53 west of Green- 

 wich (determined telegrai)hically from St. Louis); altitude 2,322'" (7,G18 

 feet). An "anuario" is published regularly. 



Tacuhaya. — Private observatory of M. G. Prieto: Bardou equatorial, 

 C^.ll (4J inches) a])erture, 1"'.60 (5 feet 3 inches) focal length; spectro- 

 scope, and clock. 



Taschlent. — The refractor has been used for observations of sun-spots, 

 comets, and occultations by the moon ; the meridian circle, principally 

 for determining the positions of comet comi)arison stars. The observa- 

 tory has co-oi)erated in determining the geographical positions of a num- 

 ber of places in central Asia. Several chronometers have been tested, 

 and the noon signal has been given by the discharge of a cannon, as in 

 previous years. The director, M. Pomerantzeff, is assisted by MM. 

 Zalessky and Schwarz. A new determination of the latitude in 1887 

 gave: y>= + 41o 19' 31".35±0".O5. 



Temple observatory {Rugby). — Spectroscojtic observations of the motion 

 of stars in the line of sight, and measures of double stars. 



ToJcio. — An observatory was founded in 1888 at Tokio, Japan, by 

 combining the astronomical department of the old Marine observatory, 

 the observatory of the Ministry of the Interior, and that of the Impe- 

 rial University. The new observatory occupies the buildings of the 

 Marine observatory, its position as i)rovisionally determined being lati- 

 tude, + 350 39' 17".5; longitude, 9'' 18'" 58«.0 east of Greenwich, The 

 princii)al instruments are a .Jr^-inch llepsold transit, a 5 inch Merz and 

 Kepsold meridian circle, and equatorials of G^ and 8 inches aperture. 

 The director is H. Terao. 



