CONTENTS OF VOL. XV. 



(FOURTH SERIES.) 



NUMBER XCVIL— JANUARY 1858. ^^^^ 



Mr. J.J. Waterston on Capillarity and its relation to Latent 



Heat . . „ 



Prof. Helmholtz on the Telestereoscope ^-^ 



Dr. Schonbein on the various Conditions of Oxygen '-4 



Dr. Heddle on the Crystalline Form of Far5elite 28 



Dr. Schunck on the Formation of Indigo-blue.— Part II 1.9 



M. du Bois-Reymond on the Electrical Silure 45 



Mr. H. Medlock on the Reciprocal Action of Metals and the 



Constituents of Well- and River-waters ^8 



Mr F. Guthrie on a new Form of Spirator • «■* 



Notices respecting New Books :— Mr. C. G. Williams's Hand- 

 book of Chemical Manipulation ob 



Proceedin-^s of the Royal Society : — 



Mr. T. S. Hunt on the part which the Silicates of the 



Alkalies may play in the Metamorphism of Rocks .... 68 

 Mr. J. Paget on the Cause of the Rhythmic Motion of ^ 



the Heart ,• •.• • • • • •/ • • ■ ' 



Dr. Hofmann on a new Mode of forming Inethylamine. . /U 

 Proceedings of the Geological Society : — 



Mr. E. Hull on the Correlation of the Triassic and Per- 

 mian Rocks of the Odenwald in the Vicinity of Heidel- ^ 



berg and those of Central England • ■ • • ■ ; • "l 



Mr. R. B. Smyth on the Extinct Volcanos of Victoria, 



Australia ■ • •.' 



Prof. J. Phillips on Estuary Strata in Shotover Hili, near 



Oxford , y:\v- 



Dr. Bigsby on the Mineralogical and Paleeontological cha- 



racters of the Palaeozoic Strata of the State of New York . / 6 

 Note on the Decomposition of certain Salts, i)articularly Lead- 



salts, by the Action of the Voltaic Current, by M. C. J>spretz. 78 



On the Coercive Power of Pure Iron, by A. Matthiessen Ph.D. 80 



On the Formation of Isatine by Ozone, by Prof. O. L. Erdmann. 80 



NUMBER XCVIII.— FEBRUARY. 



Prof. Briicke on Gravitation and the Conservation of Force. 81 



Prof. Draper on the Nature of Flame, and on tiie Condition ot 

 the Sun's Surface 



DO 



