Astronomical Society. 385 
and Behring’s Straits in 1815, 1816, 1817, and 1818. 3 Vols. 
Svo. 21. 5s. 
A Voyage to Africa, including a particular Narrative of an 
Embassy to one of the Interior Kingdoms in 1820. By Wm. 
Hutton, late acting Consul for Ashantee, &c. With maps and 
plates. 8vo. ——— 
: Preparing for Publication. 
Travels in the Interior of Southern Airica. By W. Burchell, Esq. 
Mr. Peter Nicholson’s System of pure and mixed Mathematics, 
in one large volume, for Schools, will appear in twoor three weeks. 
Typogrophia ; an Historical Sketch of the Origin and Progress 
of the Art of Printing : with Details of the latest Improvements, 
Stereotype, Lithography, &c. By T. C. Hansard. 
Dr. Leach will speedily publish the Synopsis of Buitish Mol- 
lusea, illustrated with plates. 
Mr. Freind’s aunual volume of Evening Amusements on As- 
tronomy will appear at the end of the year. 
A New Practical Treatise on the Sliding Rule, in Two Parts, 
is in the press, and nearly ready for publication. The First, as a 
general Introduction to the use of common Sliding Rules ; Second, 
a Collection of useful Formule for the scientific calculator. 
The New “ Society of Practical Medicine of London ” intend, 
we understand, to publish their Transactions quarterly; and the 
- first Number will be published in January. 
LXXX. Proceedings of Learned Societies. 
ASTRONOMICAL SOCIETY OF LONDON. 
Nov. 9. Tux Meetings of this Society commenced this evening. 
A letter was read, from Dr. Pearson, announcing some observa- 
tions of the occultations of the Pleiades by the Moon on July 23 
and October 13. A communication was also made from 
M. Piazzi, relative to the late solar eclipse, and detailing the re- 
sult of his observations. A paper from Mr. Herschel was read, 
giving an account of the mode of dividing astronomical instru- 
ments as practised by M. Schenck of Berne in Switzerland, one 
of the pupils of the celebrated Reichenbach. The present state 
of peace has afforded opportunities of witnessing several of the 
productions of these distinguished artists: and they are found 
(if not to excel, at least) to rival the best works of the English 
artists. They are finished with a delicacy of execution and touch 
unknown to most people in this country. Some expectation is 
held out that M. Schenck may be induced to visit this metro- 
polis: and to make it the theatre of his future labours. The 
contents of this paper were highly interesting to the practical 
_ mechanic and to the scientific astronomer: but it cannot well 
be abridged in a journal of this kind. 
Vol. 58, No, 283, Nov. 1821. 3C LXXXI. In- 
