TABLE OP CONTENTS. v 



Page 

 Description of a Compass for Observations of the Magnetic 



Variation. By Col. Beaufoy. . £« V»" ' M^ qq 



Method of procuring an intense Heat ByDr.Maicet 99 



Observations on Radiant Heat. By Dr. Delaroche . . ... 100 

 Instruments necessary for a travelling Astronomer. By Col. ^ 



Beaufoy •■ ■ • • - • : -. n ^ 



On Transition Rocks. By Dr. Gnerson j jw 



On the Daltonian Theory of Definite Proportions, continued. . 109 

 On the Measurement of Minute Particles. By Dr. Young . . Wo 

 On Sir H. Davy's Theory of Chlorine and its Compounds, con- ^ 



On the Specific Heat of "the different Gases. By MM. Dela- 



roche and Ber'ard • • • • • • • • • • • ' " V' * i as 



Astronomical and Magnetical Observations. By Col. Beaufoy 138 

 Critical Analysis of Tableau Methodique des Especes Mine- 



rales, par I. A. H. Lucas ;■■"•• "''%! \1 il-i 



Mr. Children's Experiments with his Galvanic Battery A« 



Of the Volatility of Cerium l °\- 



Action of the Agate on Light 



Transition Rocks in Yorkshire »" • 



On the Structure of the Cube .,......■••■•" ™ 



Proceedings of the Royal Society, July 1 and 8. ..... ... . . J5U 



* L_ Geological Society, April 2 to June 18 . . 153 



New Patents . rfi 



Scientific Books in hand • .•••*• xo ° 



Meteorological Journal, June 21 to July 19 i^y 



NUMBER IX.— SEPTEMBER. 



On the Physical and Chemical Properties of the different Rays 



which compose Solar Light. ByM.Berard lb- 



On the Daltonian Theory of Definite Proportions, &c. con- 



tinned . . , ."%*"*"« W 



Contributions towards a Chemical Knowledge of Manganese. 



By Dr. John • • • • • . .- 172 



Sketch of the Agriculture of Berwickshire. By the Kev. J. 



Thomson, concluded *'\V' v ; ' * * * 



On the Admeasurement of Minute Particles. By Dr. \oung, 



concluded •' •!_* * VI * * "i«" " " 



On the Composition of Animal Fluids. By Dr. Berzehus, con- ^ 



Analysis of the Chinese Gong! * By Dr. Thomson ... ... 208 



On the Specific Heat of the Gases. By MM. Delaroche and 



Burard, continued ' ' *,V Vr i" oo<\ 



Analysis of the Chvle of the Horse. By M. Vauquehn . 220 



Astronomical and Magnetical Observat.ons. By Col. beaufoy 225 

 Critical Analysis of the Philosophical Transactions lor 181J, 



Part I l "' 



