[ 12 ] 
' Presents. 
LANG (O.) Improvements in Naval Architecture. 8vo. 1853. 
LARTIGUE (Mons.) Exposition du Systeme des Vents, &c. 8vo. Paris 1855. 
LAURENT (P.) Etudes Physiologiques sur les Animalcules des Infusions 
Vegetales, &c. Tom. I. 4to. Nancy 1854. 
LEFROY (Capt. J. H.) and RICHARDSON (Sir J.) Magnetical and Me- 
teorological Observations at Lake Athabasca and Fort Simpson ; and at 
Fort Confidence, in Great Bear Lake. 8vo. London 1855. 
LEVERSON (M. R.) Copyright and Patents; or. Property in Thought, &c. 
8 VO. London 1854. 
LIEUSSOU (A.) Recherches sur les Variations de la Marche des Pendules et 
des Chronometres, &c. 8vo. Paris 1854. 
LITTROW (C. von.) Bemerkungen fiber das von Herrn M. Eble fiberreichte 
“ Neue Zeitbestimmungswerk.” 8vo. Wien. 
Annalen der K. K. Sternwarte in Wien. 1" Band. 
Jahrgang 1854. 8vo. Wien 1855. 
LLOYD (Rev. H.) Notes on the Meteorology of Ireland, &c. 4to. Dublin 
1854. 
LOW (Pi’of.) On the Chemical Equivalents of certain Bodies, and on the Re- 
lations between Oxygen and Azote. 8vo. Edinburgh 1854. 
LUBBOCK (J.) On some Arctic Species of Calanidce. 8vo. London 1854. 
MALLET (R.) Notice of the British Earthquake of Nov. 9, 1852. 4to. Dub- 
lin 1854. 
MAPS, CHARTS, ENGRAVINGS, &c.:— 
2 Maps of the Geological Survey of Great Britain. Nos. 17 & 18. 
5 Horizontal Sections, do. do. Nos. 31, 32, 33, 34, 37- 
26 Charts published by the French Government. 
Engraving of Saturn, on the 15th of November, 1852, as seen with the Madras 
Equatorial. 4to. 
Engraving of Mars, as seen at Madras in the Lerebours Equatorial. 4to. 
Maps, Plans and Engravings relating to the Twemlow Family. 
A Collection of autograph Letters from Franklin, Priestley, Banks and other 
scientific men, to John Canton, F.R.S.; and one of the first specimens of 
India-rubber imported into England. 
MARTINS (C.) Des Effets observes pendant I’Hiver de 1853 a 1854 dans le 
Jardin des Plantes de Montpellier. 8vo. Montpellier. 
MAURY (Lieut. M. F.) Astronomical Observations made at the National 
Observatory, Washington. Vol. III. 4to. Washington 1853. 
Explanations and Sailing Directions to accompany 
the Wind and Current Charts. Sixth Edition. 4to. Philadelphia 1854. 
Abstracts of Logs and Charts to accompany the above. 
MAYO (T.) Medical Testimony and Evidence in cases of Lunacy. 8vo. Lon- 
don 1854. 
MELLONI (M.) La Thermochrose, ou la coloration calorifique demontree 
par un grand nombre d’Experiences, &c. lere Partie. 8vo. Naples 1850. 
MIERS (J.) Illustrations of South American Plants. Part 5. Vol. I. 4to. 
London 1850. 
MINERVINI (G.) II Mito di Ercole che succhia il latte di Giunone. 4to. 
Napoli 1854. 
Donors. 
C. E. Lang, Esq. 
The Author. 
The Author. 
Her Majesty’s Government. 
The Author. 
Depot de la Marine. 
The Observatory, Vienna. 
The Author. 
The Author. 
The Author. 
The Author. 
Her Majesty’s Government. 
Le Depot de la Marine. 
The Directors, Hon. East 
India Company. 
J. Twemlow, Esq. 
Edwin Canton, Esq. 
The Author. 
The Observatory. 
The Author. 
The Author. 
The Author. 
The Author. 
The Author. 
