CONTENTS of N° I.— New Series. On the Elastic Force of Steam ; 

 by J. Ivory, Esq. M.A. F.R.S. — On the Identity of Epistilbite and Heu- 

 landite; by A. Levy, Esq. M.A. F.G.S. — Reply to Mr. Galbraith on 

 the Experiments for ascertaining the Velocity of Sound at Port Bowen; 

 by Captain W. E. Parry, R.N. F.R.S., and Lieut. H. Foster, R.N. 

 F.R.S. — On the Cohesion of Cast Iron; by B. Bevan, Esq. — Formulae 

 for reducing Registers of the Barometer to the Standard Temperature and 

 Level ; by Mr. J. Nixon. — List of Errors in Piazzi's Catalogue of Stars. 

 — On the Inflammation of Gunpowder by Electricity ; with a Proposal to 

 employ the Term Momentum as expressive of a certain Condition of the 

 Electric Fluid ; by Mr. W. Sturgeon. — On some newly discovered Si- 

 berian Minerals ; by A. Levy, Esq. M.A. F.G.S.— On the Solar Eclipse ; 

 by the Rev. Baden Powell, M.A. F.R.S. — The Bakerian Lecture ; by 

 Sir Humphry Davy, Bart. Pres. R.S. — On a Mineral from Hay Tor ; 

 by Cornelius Tripe, Esq. — On the Crystalline Form of the Ha)'torite ; 

 by W. Phillips, F.G.S. &c. — On the Origin of the Crystalline Forms of 

 the Haytorite; by A. Levy, Esq. M.A. F.G.S. — A List of Moon-culmi- 

 nating Stars for 1827 ; by F. Baily, Esq. F.R.S.— On Fustic ; by E. S. 

 George, Esq. F.L.S. — Learned Societies, &c. &c, 



CONTENTS of N° 2.— New Series. On some new auxiliary Tables 

 for determining the apparent Places of Greenwich Stars. By Francis 

 ^AiLY, Esq. F.R.S. L.S. and.G.S. and M.R.I.A.— Investigation of the 

 Heat extricated from Air when it undergoes a given Condensation. 

 By James Ivory, Esq. M.A. F.R.S.— The Bakerian Lecture. On the 

 Relations of Electrical and Chemical Changes. By Sir Humphry Davy, 

 Bart. Pres. R.S. — A Mode of Heating Water for a Bath. By Edward 

 Deas Thomson, Esq. — On the Finite Extent of the Atmosphere. By 

 Thomas Graham, M.A. — On the Triple Prussiate of Potash. By 

 Richard Phillips, F.R.S. L. and E, &c. — On Capillary Attraction. 

 By the Rev. J. B. Emmett. — A new Method of bleaching and pre- 

 paring Flax. By the Rev. J. B. Emmett. — Description of New Suc- 

 culent Plants. By A. H, Haworth, Esq. F.L.S. &c.— On the Acci- 

 dents incident to Steam Boilers. By John Taylor, Esq. F.R.S. Tr, 

 G.S, F.H.S. — On the Crystalline Forms of Wagnerite. By A. Levy, 

 Esq. M.A. F.G.S. — On Captain Parry's and Lieut. Foster's Experiments 

 for ascertaining the Velocity of Sound at Port Bowen. By William 

 Galbraith, Esq. M.A. — Learned Societies, &c. &c. 



CONTENTS of N° III.— Biographical Notice of M. Piazzi.— Conti- 

 nuation of the Subject relating to the Absorption and Extrication of 

 Heat in a Mass of Air that changes its Volume. By J. Ivory, Esq. M.A. 

 F.R.S.— On the Seconds Pendulum at Port Bowen. By J. Ivory, Esq. 

 M.A. F.R.S. — An Account of M. Longchamp's Theory of Nitrification ; 

 with an Extension of it. By Thomas Graham, M.A. — A Sketch of the 

 Natural Affinities of the Lepidoptera Diurna of Latreille. By William 

 Swainson, Esq. F.R.S. F.L.S. &c. — On the Crystalline Form of the Hy- 

 alosiderite. By William Phillips, Esq. F.G.S. &c. — The Bakerian 

 Lecture. On the Relations of Electrical and Chemical Changes. By 

 Sir Humphry Davy, Bart., Pres. R.S. — Outlines of a Philosophical In- 

 quiry into the Nature and Properties of the Blood ; being the Substance 

 of three Lectures on that Subject delivered at the Gresham Institution 

 during Michaelmas Term 1826. By John Spuugin, M.D. Fellow of the 

 Royal College of Physicians of London, and of the Cambridge Philoso- 

 phical Society. — On Contemporaneous Meteorological Observations. By 

 Thomas Squire, Esq. — On the expected Occultation of Venus in Fe- 

 bruary. By Thomas Squire, Esq. — Some Account of an Orang Ou- 

 tang of remarkable Height found on the Island of Sumatra. By Clarke 

 Abel, M.D. F.R.S. &c. &c. — Astronomical Observations 1827. By 

 Lieut. George Beaufot, R.N. — On a New Mineral Species. By A, 

 Levy, Esq. M.A. F.G.S. — Notices respecting New Books. — Learned So- 

 cieties, &c. &c. 



