(254 ) 
IL. On the Morphology of the Cephalous Mollusca, as illustrated by 
the Anatomy of Certain Heteropoda and Pteropoda, collected 
during the voyage of H. M. S. „Ratllesnake” in 1846—50. By 
THOMAS HENRY HUXLEY, F. R. S., Assistant Surgeon R. N. 
UI. On Rubian and its products of decomposition. By EDWARD 
SCHUNCK, F. R. S. 
IV. Observations on the Structure and Development of Bone. By 
JOHN TOMES, F. R. S., Surgeon-Dentist to the Middlesex Hos- 
pital, and CAMPBELL DE MORGAN, Surgeon to the Middlesex 
Hospital. 
V. On the Periodic and non-Periodie Variations of the Temperature 
at Toronto in Canada, from 1841 to 1852 inclusive. By Colonel 
EDWARD SABINE, of the Royal Artillery, Treas, and V. P. R.S. 
VL On Periodical Laws in the larger Magnetic Disturbances. By 
Captain Cc. w. YOUNGHUSBAND, Royal Artillery, F. R. S. 
Part II bevat: 
VIT. On the Eelipses of Agathocles, Thales and Xerxes. By c. B. Airy, 
Esq., Astronomer Royal. 
VIIL On the dissolntiou of Urinary Calenli in dilute Saline Fluids, at 
the Temperature of the Body, by the aid of Electricity. By 
HENRY BENCE JONES, M. D., F. R.S, Physician to St. George's 
Hospital. 
IX. On Molecular Inflaences. Part 1. Transmission of Heat through 
Organic Structures. «By JOHN TYNDAL, EF. R. S. 
X. On the impregnation of the Ovum in the Amphibia (Second 
Series, Revised). And on the direct Agency of the Spermato- 
zoön. By erorGE NEWPORT, F. R.S, F. L. S. &c. 
XI. Description of some Species of the extinct Genus Nesodon, with 
remarks on the primary Groupe (Toxodontria) or Hoofed Qua- 
drupeds, to which that Genus is referable. By Profr. owenN, 
F. R. S. &c. 
Address of the right Honourable gARL Rossr etc. etc. 
ete the President, read at the anniversary mee- 
ting of the Royal Society, on Tuesday, November 30, 
1852. Printed at the request of the Fellows. Tuon- 
don 1853. 
Observations made at the magnetical and meteorological 
observatory at Toronto in Canada. Printed by order 
of her Majesty's Government, under the superintendence 
of COLONEL EDWARD SABINE of the royal artillery. Vol. 
II, 1843, 1844, 1845 with abstracts of the observa- 
