10 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



STAR CATALOGUES AND MAPS. 



At the Stockholm meeting of the German Astronomical 

 Society, reports of the progress of the zone observations 

 were received. The Fundamental Catalogue, which is based 

 on Pulkova observations (ISC 1-72), will appear during 1878. 

 The observations on which it is founded will first be printed, 

 and the Catalogue will follow. 



In the Nikolaief zone ( 2to+l) 1015 observations have 

 been made. The Leipsic zone (10-15) is approaching com- 

 pletion. The zone (25-30) undertaken at Cambridge (Eng- 

 land) reports: 



Total No. of stars to be observed 10,299 



' ; " " " still unobserved 2,2. r >3 



" " " " observed once 2.817 



" " " " " twice 2,178 



" " " " " three or more times. ... 8,55G 



The reductions are i'l a forward state. The observations 

 of the Leyden zone (30-35) are finished, except about 150 

 observations, to complete imperfect positions. There were 

 4300 observations printed in the Leyden Observations, Vol. 

 V.; 2250 more are completely reduced; for 2400 the reduc- 

 tion is begun, and only 900 were untouched. 



The Bonn zone (40-50). Up to the present time 29,939 

 stars have been observed by three observers. 



The Harvard College zone (50-55) contains 8317 stars, 

 of which 2014 have not yet been twice observed. Many of 

 these have been observed once. 



The Ilelsingfors zone (55-65) will be continued by Dr. 

 Kriiger, at Gotha, with the same instrument as before, which 

 has been lent for the purpose by the Ilelsingfors University. 



The Christiania zone (65-70) contains 3880 stars, of 

 which 10,744 observations have been made. Two thirds of 

 the observations are completely reduced. The printing was 

 begun during 1878. 



In the Dorpat zone (70 - 75) 2180 stars have been ob- 

 Berved twice, and 312 once, since August, 1876. The right 

 ascensions are nearly completely reduced. 



Dr. C. Powalky has reduced all of Lacaille's observations 

 of stars (about 400 in number) taken with the altitude in- 

 struments both at the Cape of Good Hope and at Paris. By 

 introducing new values of the latitude, refraction, and cor- 



