New Edition of Hints on Silver-Glass Reflecting Telescopes Manufactured by Mr. G. Calver, F.R.A.S. / with Directions for Silvering, Adjusting, &c.

by George Calver

μ Andromedæ. 45″ : 4, 16.

β Equulei. 35″, 3″, 50″ : 5, 13, 16, 14.

85 Virginis. 30″ : 6, 16.

55 Andromedæ. 25″ : 5·5, 16.

178^a Delphini. 20″ : 7·5, 16.

212 Libræ. 20″, 10″ : 6, 16, 8.

14 Monocerotis. 10″ : 6, 16.

94 Ceti. 5″ : 5·5, 16.

δ Aquilæ. 1″·5 : 3·5, 16.

Separating Tests.