CONTENTS OF N" \.—New Series: 



I. On the Elastic Force of Steam at different Temperatures. By 



J. Ivory, Esq. M.A. F.R.S page 1 



II. On the Identity of Epistilbite and Heulandite. By A. Levy, 

 Esq. M.A. F.G.S. , 6 



III. Reply to Mr. Galbraith's Remarks on the Experiments for 

 ascertaining the Velocity of Sound at Port Bowen. By Capt. W. E. 

 Parry, R.N. F.R.S., and Lieut. H. Foster, R.N. F.R.S 12 



IV. Experiments on the Cohesion of Cast-Iron. By B. Bevan, Esq. 14 



V. Table and Formulas for reducing Registers of the Height of 

 the Barometer to the Standard Temperature and Level. By Mr. J. 

 Nixon , •"'. • 15 



VI. Further List of Errors in Piazzi's Catalogue of Stars 19 



VII. On the Inflammation of Gunpowder and other Substances by 

 Electricity ; with a Proposal to employ the Term Momentum as ex- 

 pressive of a certain Condition of the Electric Fluid. By Mr. W. 

 Sturgeon 20 



VIII. On some newly discovered Siberian Minerals. By A. Levy, 

 Esq. M.A. F.G.S 26 



IX. Observations on the Solar Eclipse, November 29th, 1826. By 



the Rev. Baden Powell, M.A. F.R.S ,. 28 



X. The Bakerian Lecture. On the Relations of Electrical and 

 Chemical Changes. By Sir Humphry Davy, Bart. Pres.R.S. (To 



be continued) 31 



XI. Observations on a Mineral from near Hay Tor, in Devonshire. 



By Cornelius Tripe, Esq 38 



XII. Remarks on the Crystalline Form of the Haytorite. By 



W. Phillips, F.G.S. &c 4.0 



XIII. On the Origin of the Crystalline Forms of the Haytorite. 



By A. Levy, Esq. M.A. F.G.S 43 



XIV. Astronomical Observations 1826. By Lieut. Beaufoy, R.N. 46 



XV. A List of Moon-culminating Stars for 1827. By F. Baily, 

 Esq. F.R.S 47 



XVI. Observations on the late Solar Eclipse. By Thomas 

 Squire, Esq - 55 



XVII. On Fustic {Moras tinctorius), and its Application to the 

 Dyeing of Yellow, Green, Olive, and Brown. By E. S. George, Esq. 

 F.L.S 55 



XVIII. Proceedings of Learned Societies: — Royal Society; Lin- 

 naean Society ; Geological Society ; Astronomical Society 60 — 70 



XIX. Intelligence and Miscellaneous Articles: — Separation of 

 Elaine from Oils; Sulphuret of Cerium ; Oxide of Carbon ; Artificial 

 Sulphuret of Zinc ; Protoferrocyanate of Iron ; Cyanic Acid ; Sepa- 

 ration of Iron from Manganese ; Acetates of Mercury ; Pyrmont 

 Heavy Spar ; Discovery of a Substance that inflames apon Contact 

 with Water ; Enormous Fossil Vettebia ; African Expedition ; Steam 

 Navigation ; Scientific Books ; Foreign Books of Science lately pub- 

 lished; New Patents: Meteorological Observations, Table, &c. . .71 — 80 



*,♦ It is requested that all Communications for tliis Work may be nddressed. 

 post paid, to the Care of Mr. H. Taylor, Printer, Shoe- Lane, London. 



