PRESENTS. 
DONORS. 
ASTRONOMIA. Astronomisches Jahrbuch fiir das Jahr 
1825, nebst einer Sammlung der neusten in die astrono- 
misches Wissenschaften einschlagenden Abhandlungen, 
Beobachtungen, und Nachrichten. Von. J. E. Bode. 50 
Band. 8° Berlin, 1822. 
Astronomische Nachrichten, No. 33-57. 4 0 . 
Astronomische Hiilfstafeln fiir 1823-1824. 
8° Copenhagen. 
BARLOW (peter) An Elementary Investigation of the 
Theory of Numbers, with its application to the inde- 
terminate and Diophantine Analysis, the analytical and 
geometrical division of the Circle, and several other 
curious Algebraical and Arithmetical Problems. 8° 
London, 1 8 1 1 . 
New Mathematical Tables, containing the 
factors, squares, cubes, square roots, cube roots, reci- 
procals, and hyperbolic Logarithms of all Numbers from 
1 to xo,ooo ; Tables of powers and prime numbers, an 
extensive Table of Formulae, or general Synopsis of the 
most important particulars relating to the doctrines of 
Equations, Series, Fluxions, Fluents, &c. Sec. See. 8° 
London, 1814. 
An Essay on Magnetic Attractions and on the 
Laws of Terrestrial and Electro-Magnetism ; compris- 
ing a popular course of curious and interesting Experi- 
ments on the latter subject, and an easy Experimental 
Method of correcting the Local Attraction of Vessels 
on the Compass in all parts oftheWorld. 8° London, 1 823. 
* — An Essay on the Strength and Stress of Tim- 
ber, founded upon Experiments performed at the Royal 
Military Academy, on Specimens selected from the 
Royal Arsenal and His Majesty’s Dock Yard, Wool- 
wich, preceded by an Historical Review of former The- 
ories and Experiments, with numerous Tables and 
Plates ; also, an Appendix on the Strength of Iron and 
other materials. 8° London, 1824. 
BELL, (thomas) v. Zoological Journal. 
BENOIT, (p. m. n.) Theorie generale des Pese-Liqueurs 
appliquee a la construction et a l’emploi de toutes sortes 
d’areometres entierement comparables ; avec des Tables 
areometriques tres etendues, donnant les pesanteurs 
specifiques correspondant aux divers degres des Pese- 
Liqueurs en usage ; le titre des Eaux-de-vie, des Acides 
sulfuriques, Sec. 8° cl Paris, 1821. 
BERTHEVIN et treuil, {MM.) Elemens d’Arithme- 
tiqueComplementaire,ou Methode Nouvelle par laquelle 
a l’aide des Complemens Arithmdtiques on execute 
toutes les operations de Calcul. 8vo. d Paris, 1823. 
BESSEL (f. w. von) Astronomische Beobachtungen auf 
der Koniglichen Universitats Sternwarte in Konigsberg. 
Siebente Abtheilung — vom 1 Januar bis 31 Decem- 
ber, 1821. fol. Konigsberg, 1822. 
Professor Bode, Nov. 20, 
1823. 
Professor H.C. Schumacher, 
Nov. 20, 1823. 
Professor Barlow, May 13, 
1824. 
M. Benoit, Nov. 20, 1823. 
MM. Berthevin et Treuil, 
Nov. 20, 1823. 
F. W. von Bessel, Nov. 20, 
1823. 
