[ 6 ] 
Presents. 
BILLING (A.) First Principles of Medicine. 4th edition. 8vo. London 
1841. 
BIOT ( — ) Memoire sur la polarisation lamellaire. 4to. Paris 1841. 
BORRELLI (Pasquale.) Su la guerra considerata nelle sue relazioni morali o 
sia su di alcune moderne teoriche intorno alia guerra. 8vo. Mendrisio 
1841. 
Su di un caso singolare di Monomania. 8vo. Napoli 
BOTFIELD (Beriah.) Manners and Household Expenses of England in 
the 13th and 15th centuries, illustrated by original records. 4to. London 
1841. 
BRIERRE DE BOISMONT (A.) De la Menstruation consideree dans ses 
rapports Physiologiques et Pathologiques. 8vo. Paris 1842. 
BRISTOW (H. W.) A descriptive Catalogue of the Minerals in the Museum 
of King’s College, London. 8vo. London 1842. 
BRODIE (Sir Benj. C.) Lectures on the Diseases of the Urinary Organs. 3rd 
edition. 8vo. London 1842. 
BRONGNIART (Alex.) et MALAGUTI. Second Memoire sur les Kaolins 
ou Argiles a Porcelaine. Extrait des Archives du Museum d’Histoire Na- 
turelle. 4to. Paris 1841. 
BROOKS ( W. A.) Treatise on the Improvement of the Navigation of Rivers ; 
with a new theory on the cause of the existence of bars. 8vo. London 1841. 
BROWNLOW (W.) A Treatise on the direct solution of Cubic Equations, 
comprehending the irreducible case. 12mo. London 1841. 
BUCHANAN (Rob.) Practical Essays on Mill-Work and other Machinery. 
Part II. revised by George Rennie, Esq., F.R.S. 8vo. London 1841. 
BUCKLAND (W.) Address delivered at the Anniversary Meeting of the Geo- 
logical Society of London, on the 19th of February 1841. 8vo. London 
1841. 
BULLOCK (Fred.) A Letter to Capt. Beaufort, R.N., F.R.S., &c., descrip- 
tive of the Refuge Beacon, erected on the Goodwin Sands, accompanied 
with two lithographic drawings. 8vo. London 1842. 
BURT (T. S.) Narrative of a late Steam Voyage from England to India, via 
the Mediterranean. 8vo. Calcutta 1840. 
CHALLIS (Rev. Jas.) Astronomical Observations made at the Observatory 
at Cambridge, Vol. XII. 4to. Cambridge 1841. 
CHARLES ( — ) Nouvelle Solution du Probleme de l’Attraction d’un ellip- 
soide heterogene sur un point exterieur. 4to. Paris 1840. 
CIVIALE ( — ) Traite Pratique sur les Maladies des Organes Genito-Uri- 
naires, 2 me et 3 me Parties. 8vo. Paris 1841. 
COSTA DE MACEDO (Joaquein Jose da.) Discurso na Sessao publica da 
Academia Real das Sciencias de Lisboa, 15 de Maio 1838. 4to. Lisboa 
1838. 
CREUZE (Augustin F. B.) Treatise on the Theory and Practice of Naval 
Architecture ; being the article Ship-Building in the Encyclopaedia Bri- 
tannica. 7th edition. With 15 plates. 4to. Edinburgh 1841. 
CURTIS (J. H.) The present state of Aural Surgery ; being the substance of 
a Lecture delivered at the Royal Dispensary for Diseases of the Ear. 8vo. 
London 1841. 
Donors. 
The Author. 
The Author. 
The Author. 
The Author. 
Beriah Botfield, Esq., F.R.S. 
The Author. 
The Author. 
The Author. 
Mons. Brongniart. 
The Author. 
The Author. 
G. Rennie, Esq., F.R.S. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Academy of Lisbon. 
The Author. 
The Author. 
