Note respecting a new kind of Sensitive Paper. By Henry FoxTalbot, Esq. F.R.S. ............. .. page 134
On a new equi-atomic compound of Bicyamde With Binoxide of Mer- cury. By James F. W. Johnston, Esq. F.R.S ....................... .. 135
On the Constitution of the Resins—Part I. By James F. W. John- ston, Esq. 135 Researches in Emhryology.—Second Series. By Martin Barry, M.D. F.R.S.E. Fellow of the Royal College of Physicians in Edinburgh" 136 On the Motion of the Blood. By James Carson, M.D. F.R.S ....... .. 140
Account of Experiments on Iron‘built Ships, instituted for the pur- pose of discovering a Correction for the Deviation of the Compass produced by the Iron of the Ships. By George Biddell Airy, Esq. M.A. F.R.S. Astronomer Royal . ............ 141
On the Visibility of certain Rays beyond the Ordinary Red Rays of the Solar Spectrum. By J. S. Cooper, Esq., in a letter to Michael Faraday, Esq. D.C.L. F.R.S. 51c ......................................... .. 146
Fifih letter on Voltaic Combinations ; with some account of the effects of a large Constant Battery : addressed to Michael Faraday, Esq. D.C.L. F.R.S. Fullerian Professor of Chemistry in the Royal Institution of Great Britain. By John Frederic Daniel], Esq. F.R.S. Professor of Chemistry in King’s College, London ................... .. 147
An Experimental Inquiry into the Influence of Nitrogen in promoting Vegetable Decomposition, and the connexion of this process with the Growth of Plants. By Robert Rigg, Esq ........................ ... 148
Experiments on the Chemical Constitution of several bodies which un« dergo the Vinous Fermentation, and on certain results of the Chc- mical Action. By Robert Rigg. Esq. RES. ........................ ... 149
Researches on the Tides—Tenth Series. On the Laws of Low Water at the Port of Plymouth, and on the permanency of mean water. By the Rev. W'. Whewell, B.D. F.R.S. Fellow of Trinity College, Cambridge ................................................................... .. 152
Researches on the Tides—Eleventh Series. On certain Tide Obser- vations made in the Indian Seas. By the Rev. VV'. Whewell, B.D. F.R.S. Fellow of Trinity College, Cambridge ......................... .. 152
On the Electrolysis of Secondary Compounds. In a letter addressed to Michael Faraday, Esq. D.C.L. F.R.S. Fullerian Professor of Chemistry in the Royal Institution of Great Britain, 8m. By John Frederic Daniell, Esq. F.R.S. Professor of Chemistry in King’s Col-
lege, London ......... .., .......... ............ ............... ... ............ .. 153 Experimental Researches on the mode of operation of Poisons. By
James Blake, Esq. ....................................... ... ................ .. 155 Inquiries concerning the Elementary Laws of Electricity.—Third
Series. By W. Snow Harris, Esq. F.R.S ..... .., ..................... .. 156
On the Conditions of Equilibrium of an Incompressible Fluid, the particles of which are acted upon by Accelerating Forces. By James Ivory, Esq. K.H. M.A. F.R.S. 81¢. .._... ...... .......,...,................ 157
Report of a Geometrical Measurementh the Height of the Aurora Borealis above the Earth. By the Rev. James Farquharson, LL.D.
F.R.S. 162
