CONTENTS. 
XV. The Bakerian Lecture. — On the Tides at the Port of London. By John Wil- 
liam Lubbock, Esq. F.R.S page 21/ 
XVI. Report of Magnetic Experiments tried on Board an Iron Steam-Vessel, by 
Order of the Right Honourable the Lords Commissioners of the Admiralty. 
Bij Edward J. Johnson, Esq. Commander R.N. Accompanied by Plans of the 
Vessel, and Tables showing the Horizontal Deflection of the Magnetic Needle 
at different Positions on board, together with the Dip and Magnetic Intensity 
observed at those Positions, and compared with Observations made on shore with 
the same Instruments. Addressed to Charles Wood, Esq. M.P. 8$c. 8$c., and 
communicated by Captain Beaufort, R.N. F.R.S. Hydrographer to the Admi- 
ralty, by Command of the Right Honourable the Lords Commissioners of the 
Admiralty 267 
XVII. Researches on the Tides. — Sixth Series. On the Results of an extensive system 
of Tide Observations made on the coasts of Europe and America in June 1835. 
By the Rev. William Whewell, M.A. F.R.S. Fellow of Trinity College, Cam- 
bridge 289 
XVIII. On the Powers on which the Functions of Life in the more perfect Animals 
depend, and on the Manner in which they are associated in the production of their 
more complicated results. By A. P. W. Philip, M.D. F.R.S. L. 8$ E. 8$c. 343 
XIX. Discussion of the Magnetical Observations made by Captain Back, R.N. during 
his late Arctic Expedition. By S. Hunter Christie, Esq. M.A. F.R.S. 8$c. 377 
XX. Inquiries concerning the Elementary Laws of Electricity. Second Series. By 
W. Snow Harris, F.R.S. 8$c 417 
XXI. Note relative to the supposed Origin of the Deficient Rays in the Solar Spec- 
trum ; being an Account of an Experiment made at Edinburgh during the Annu- 
lar Eclipse of \bth May 1836. By James D. Forbes, Esq. F.R.SS. L. 8$ E. 
F.G.S. 8$c., and Professor of Natural Philosophy in the University of Edin- 
burgh 453 
