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Presents. 
Augustin Pyramus de Candolle, Professor of Natural History at the Aca- 
demy of Geneva. 8vo. Edinburgh 1843. 
DAUBENY (Ch^s.) On the Public Institutions for the advancement of Agri- 
cultural Science which exist in other countries, and on the plans which 
have been set on foot by individuals with a similar intent in our own. 8vo. 
London 1842. 
Lecture on the application of Science to Agriculture, 
delivered before the Members of the Royal Agricultural Society of England 
on the 9th December 1841. 8vo. London 1842. 
DAUSSY (M.) Memoire Deseriptif de la Route de Teheran a Meched et de 
Meched a Jezd, reconnue en 1807 ; par M. Truilhier, capitaine au Corps 
du Genie: suivi d’un memoire sur les observations faites en 1807, par le 
Capitaine Truilhier, dans son voyage en Perse, accompagne de quatre 
cartes itineraires. 8vo. Paris 1841. 
— Table des Positions Geographiques des principaux Lieux du 
Globe : extrait de la Connaissance des Temps de 1844. 8vo. Paris. 
DAVY (John.) On the Property belonging to Charcoal and Plumbago (in fine 
plates and particles) of transmitting Light. 4to. Edinburgh 1843. 
Notes and Observations on the Ionian Islands and Malta, with 
some remarks on Constantinople and Turkey, and on the system of Quaran- 
tine as at present conducted. 8vo. London 1842. 
DEMIDOFF (A de.) Voyage dans la Russie Meridionale et la Crimee, Tome 
II. et IV., avec des planches. 8vo et fol. Paris 1842. 
DE MORGAN (A.) The Differential and Integral Calculus. 8vo. London 
1842. 
Part II. General Information on subjects of Chronology, 
Geography, Statistics, &c. 
References for the History of the Mathematical Sciences. 
12mo. London 1842. 
DENT (E. J.) On the Errors of Chronometers, and explanation of a new con- 
struction of the Compensation-Balance. 8vo. London 1842. 
On the Errors of the Chronometrical Thermometer. 8vo. Lon- 
don 1843. 
DILLWYN (L. W.) Hortus Collinsonianus ; an Account of the Plants culti- 
vated by the late Peter Collinson, Esq., F.R.S., arranged alphabetically ac- 
cording to their modern names, from the catalogue of his garden and other 
manuscripts. Not published. 8vo. Swansea 1843. 
DOLLARD (W.) General and Medical Topography of Kalee, Kemaoon and 
Shore Valley, with sketches of the Cantonments of Lohooghaut and Peto- 
ragurh, as also of the Roads, Rivers, Bungallows, &c. of part of the 
District. 8vo. Calcutta 1840. 
DOPPLER (C.) On the Coloured Light of Double Stars, and of other Stars 
of the Heavens. 4to. Prag. 1842. 
DOUGLAS (G.) An Anatomical Exposition of the Structure of the Human 
Body, 2 vols. ; by James Benignus Winslow: translated from the French 
original ; 5th edition. 8vo. Edinburgh 1763. 
DUTROCHET (M.) Recherches Physiques sur la Force Epipolique, 2 mc 
partie. 8vo. Paris 1843. 
ELLIS (Alex. J.) The Spirit of Mathematical Analysis, and its relation to a 
b 
Donors. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
The Editor. 
The Directors of the East 
India Company. 
The Author. 
J. C. Carpue, Esq., F.R.S. 
The Author. 
The Translator. 
MDCCCXLIV. 
