[ 13 ] 
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POISSON (S. D.) Memoire sur les Apparences des corps lumineux en repos 
ou en mouvement. ito. Paris. 
Memoire sur I’Equilibre et le Mouvement des Corps 
Cristallises. ito. Paris. 
PORTRAITS 
Calotype Portrait of Mons. J. B. Biot. 
Engraved Portrait of Leonard Euler of Basil, 1851. 
Lithograph Portrait of J. E. Gray, Esq., F.R.S. 
PYCROFT (J. W.) Letter to Sir R. H. Inglis, Bart., on Legislative Incorpo- 
ration, &c. Svo. London \S5\. 
RAM CHUNDRA. A Treatise on Problems of Maxima and Minima, solved 
by Algebra. 8vo. Calcutta 1850. 
RAMSAY (A.' C.) On the Science of Geology and its Applications. 8vo. 
London 1852. 
RASELLI (A. L.) Non plus ultra delle Matematiche. 8vo. Milano 1850. 
RENNIE (Sir J.) The Theory, Formation and Construction of British and 
Foreign Harbours. Parts 8 to 15. fol. London 1851-52. 
ROBINSON (Rev. T. R.) Description of an Improved Anemometer, &c. 
4to. Dublin 1851. 
ROGET (Dr. P. M.) Thesaurus of English Words and Phrases, classified and 
arranged so as to facilitate .the expression of Ideas and assist in Literary- 
Composition. 8vo. London 1852. 
SABINE (Col. E.) Observations made at the Magnetical and Meteorological 
Observatory at Hobarton. Vol. 11. 4to. London 1852. 
Observations made at the Magnetical and Meteorological 
Observatory at the Cape of Good Hope. 4to. London 1851. 
SCARPELLINI (E. F.) Sopra i Lavori Chimico-Farmaceutici del Professore 
Pietro Peretti. 8vo. Roma 1850. 
SCHAFHAUTL (Dr.) Geognostische Untersuch ungen des siidbayerischen 
Alpengebirges. 8vo. Munclien 1851. 
SEM (Jules.) Ce que c’est que la Lune. 8vo. Paris 1851. 
SHARP (Granville.) The Prize Essay on the Application of Recent Inven- 
tions, &c. to the purposes of Practical Banking. 8vo. London 1852. 
SMEE (A.) Lecture on Electro-Metallurgy, &c. 8vo. London 1851. 
SMITH (C. R.) Remarks on Anglo-Saxon and Frankish Remains. 8vo. 
SMYTH (C. P.) Extracts from the Letter-press of the Astronomical Obser- 
vations made at the Royal Observatory, Edinburgh. 4to. Edinburgh 
1852. 
SMYTH (Capt. W. FI.) ^Edes Hartwellianse, or Notices of the Manor and 
Mansion of Flartwell. 4to. London 1851. 
Address to the Royal Geographical Society, May 
1851. 8vo. London 1851. 
SMYTH (W. W.) On the Value of an Extended Knowledge of Mineralogy 
and the Processes of Mining. 8vo. London 1852. 
SOBRERO (A.) Manuale di Chimica Applicata alle Arti. Vol. I. 8vo. Torino 
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Donors. 
The Institute of France. 
Prof. Regnault. 
M. Faraday, Esq., F.R.S. 
J. E. Gray, Esq. 
The Author. 
Captain Bethune. 
Sir H. T. De la Beche. 
The Author. 
The Author. 
The Author. 
The Author. 
The British Government. 
The Author, 
The Academy at Munich. 
The Author. 
J. W. Gilbart, Esq., F.R.S. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
Sir H. T. De la Beche. 
The Author. 
