t 442 ] 
1820 . PRESENTS. 
Principes d’Astronomie, et Amours de deux Amans, 
par C. Roucher-Deratte. Montpellier, 1804. 
8 ° 
Traite sur la Luminologie, par M. Roucher-De- 
ratte. Montpellier, 1809. 8° 
The Nautical Almanack and Astronomical Ephe- 
meris, for the year 1821. London, 1820. 8° 
L’Attraction detruite par le Mouvement Primor- 
dial, par Le Comte de Zuylen de Nyevelt. Brus- 
sel's, 1819. 12° 
Annales des Mines, redigees par le Conseil Gene- 
ral des Mines. Vol. IV. Part 4, and Vol. V. 
Part 1st and 2d. Paris. 8° 
Introductory Lecture to a Course of Botanical Lee- 
tures. Excursions, and Demonstrations, by 
James Robinson Scott. Edinburgh, 1820. 8° 
Memoires de l’Academie Royale des Sciences, de 
PInstitut de France, Annee 1818. Tome III. 
Paris, 1820. 4 0 
Kongl Vetenskaps Academiens Handlingar for 
Ari8i9. Stockholm, 1819. 8° 
F.phemeris of the Distances of the four Planets 
Venus, Mars, Jupiter, and Saturn, from the 
Moon’s Centre, for 1 822 ; to which are annexed. 
Tables for finding the Latitude by the Polar 
Star, for 1821 and 1822, byH. C. Schumacker. 
Copenhagen, 1820. 4 0 
Hiilfstafeln zu Zeit und Breitenbestemmungen 
herausgegeben, von H. C. Schumacker. Co- 
penhagen, 1820. 12° 
An Analysis of the Leamington Spa in Warwick- 
shire, by Geo. Hume Weatherhead, M. D. Lon- 
don, 1820. 8° 
Dissertatio Physico-Mathematica Inauguralis, de 
Celeritate Soni per Fluida Elastica propagati, 
Auctore Richard Van Rees. Utrecht, 1819. 
4 ° 
Tentamina Mathematica de Cubatura Segmenti 
Ellipsoidis, Auctoribus Rb. van Tuyl van Se- 
rooskerken et R. Van Rees. Utrecht, 1819. 
. . 4 ° 
Richardi Van Rees Disquisitio de Decompositione 
Acidi Carbonici in Vegetatione. Utrecht, 1818. 
80 
Discours sur les Medailles d’Auguste et de Tibere 
au Revers de l’Autel de Lyon, par F. Artaud. 
Lyons, 1820. 8° 
Meteorological Observations made in the Vici- 
nity of Baltimore, during the years 1817 and 
1818, by Lewis Brantz. Baltimore, 1818 and 
1819. 4° 
DONORS. 
M. Roucher-Deratte. 
The Commissioners of 
Longitude. 
Le Comte de Zuylen de 
Nyevelt. 
Le Conseil des Mines. 
James Robinson Scott, 
Esq. 
The Royal Institute of 
France. 
The Royal Academy of 
Sciences of Stockholm. 
Prof. H. C. Schumacker. 
Dr. George Hume Wea- 
therhead. 
Prof. Moll. 
M. F. Artaud. 
W. Gwynn, Esq. 
