account of some Experiments made in order to test the relation of 

 electrical and chemical action which takes place before and after 

 completion of the Voltaic Circuit. By John P. Gassiot, Esq. 

 F.R.S , page 500 



Some further Observations and Experiments illustrative of the Cause 

 of the Ascent and continued Motion of the Sap, in continuation of 

 a Paper presented to the Royal Society in November 1842. By G. 

 Rainey, Esq 502 



On the Temperature of the Springs, Wells and Rivers of India and 

 Egypt, and of the Sea and Table Lands within the Tropics ; with 

 a few Remarks on M. Boussingault's mode of ascertaining the mean 

 temperature of Equinoctial Regions. Bv Lieut. Xewbold, of the 

 Madras Arm^^ F.R.S T. ,' 502 



On the Electrolysis of Secondary Compounds. By John Frederic 

 Daniell, Esq. D.C.L. For. Sec. R.S., and Professor of Chemistry 

 in King's College, London ; and W. A. Miller, M.D., Demon- 

 strator of Chemistry in the same College 504 



A description of certain Belemnites, preserved with a great proportion 

 of their soft parts, in the Oxford clay at Christian Malford, Wilts. 

 By Richard Owen, Esq. F.R.S. &c., Hunterian Professor of Ana- 

 tomy and Physiology in the Royal College of Surgeons 505 



Note in addition to Mr. Gassiot's paper on the 'Water Battery* 507 



On the production of Ozone by Chemical Means. By Professor 

 Schoenbein, in a letter to Michael Faraday, Esq. D.C.L. F.R.S. ... 507 



Contributions to Terrestrial Magnetism. — No. VL Bv Lieut. -Colonel 

 Sabine, R,A. F.R.S ' 507 



On the production of Ozone by Chemical JNIeans. By C. F. Schoen- 

 bein, Professor of Chemistry at Basle, in a second letter to Michael 

 Faraday, Esq. D.C.L. F.R.S 508 



On the existence of Phosphoric Acid in Rocks of igneous origin. By 

 George Fownes, Esq. Ph.D., Chemical Lecturer in the Middlesex 

 Hospital Medical School 508 



Ranges of the Barometer and Sympiesometer on board H.M.S. 'Al- 

 fred,' in the River Plate, between the 1st of July and the 31st of 

 December, 1843 509 



Remarks on the amalgamation of Silver Ores in Mexico ; with an ac- 

 count of some new combinations of Copper, Oxygen and Chlorine. 

 By John Christian Bowring, Esq 509 



Experimental evidence in support of the secretion of Carbon by ani- 

 mals. By Robert Rigg, Esq. F.R.S .' 509 



On the Hyssop of Scripture. By J. F. Royle, M D. F.R.S. &c 510 



On the Measurement of Distances by the Telescope. By Edmund 

 Bowman, Esq. C.E 510 



An Account of some Experiments exhibiting new instances of the 

 Absorbing Power of Streams ; with a few remarks on the Pulsation 

 of Jets. By Mr. G. Robinson = 510 



Meteorological Register kept at the Master-Attendant's OfBce, Trin- 

 comalee, between the 1st of September, 1843, and the 29th of 

 February, 1844. By Joseph Higgs, Master Attendant 511 



