Progress of Astronomy during the Year 1879. 463 
50-40. Bonn. About 5000 single observations remain to be made ; 
reductions far advanced. 
40-35. Lund. Observations commenced in September, 1878; the 
reductions are progressing with the zones. 
35-30. Leiden. Finished; vol. 5 of the “ Annalen,” containing the 
second half of the zones, is in the press. 
30-25. Cambridge (England). About 4000 single observations to be 
made yet. The mean places are calculated up to the end of 
1874, apparent places to the end of 1876. 
25-20. Berlin. Not yet commenced. 
20-15. Berlin. Finished, but not yet reduced. 
15-10. Leipzig. Zones finished; R.A.’s almost all reduced to 1875:0 ; 
zeros for declinations partly computed. 
10-5. Leipzig. Has been commenced. 
5-1. Albany. Observations were commenced in August, 1878. 
The influence of magnitude on the transit has been investi- 
gated by wire-screens, as suggested by Mr. Gill. Correction 
to observed transit= — 0°-009 (M — 4:0) — 0*:00037 (M —4-0)2, 
where M is the magnitude. 
+1lto —2. Nicolajeff. Much interrupted by the Russo-Turkish war. 
A second edition of the Washington Catalogue of Stars has been 
issued. Since the first edition was published, in 1873, Professor 
Yarnall had accumulated many observations, which he, before 
retiring from the Observatory, embodied in a second edition. 
Many stars which had only been observed once or twice, either 
in right ascension or declination, were thus re-examined. The 
author died suddenly, on Feb. 27, 1879, the complete volume only 
reaching him a few moments before his death. 
Dr. Robinson has published “ Places of 10,000 Stars, observed 
at the Armagh Observatory.” The stars are those of the fainter 
ones in the “ Histoire Céleste” (nearly all between 6th and 7°5 
mag.), which have not been recently observed at other observa- 
tories. The instruments at Armagh not being opticaily powerful 
enough for this work, the mural circle was furnished with a new 
telescope having an object-glass of seven inches aperture. The 
observations were all made by the Rev. Ch. Faris, in the years 
1868-76, each star being observed four or five times. Only the 
mean results are given. (Trans. Roy. Dub. Soc. New Ser. 
Vole 1.) Pt. 9:) 
The first volume of the second series of the “ Annales de 
lObservatoire de Bruxelles” contains an “ Uranométrie Géné- 
rale,” by M. Houzeau. During a stay in Jamaica the author 
resolved to form a new Uranometry, which should possess the 
