VI CONTENTS. 



Page 



Astronomical Observations. By Col. Beaufoy, FRS 352 



Tables of Temperature, and on the Causes of Calorific Capacity, Latent 



Heat, &c. By John Herapath, Esq. {continued) 363 



On the Nature of the Pigment in the Hieroglyphics on the Sarcophagus 



from the Tomb of Psammis. By J. G. Children, Esq. FRS. &c 38() 



Further Remarks upon Mr. Herapath's Theory 39O 



Education of Mechanics. 395 



Application of the Air-Pump 395 



Meridians of Greenwich and Paris 396 



Solar Eclipse in America S96 



Cashmere Goat 3g6 



Aphlogistic Lamp 396 



Medico-Chirurgical Society of Edinburgh 396 



Lithography 397 



Society for the Encouragement of Geography 397 



Russian Voyage of Discovery 3Q7 



Racing Pedometer 397 



Life Preserver 397 



New Scientific Books 398 



New Patents 398 



Mr. Howard's Meteorological Journal for September 399 



NUMBER VI.— DECEMBER. 



Biographical Sketch of the late JohnRennie, Esq. FRS 401 



On Floetz Formations. By Thomas Weaver, Esq. MRIA. MRDS. &c. 



(concluded) 405 



On Crystallized Magnesian Carbonate of Lime. By Dr. Clarke 415 



Observations on Mr. Herapath's Theory 418 



On the Origin of the Name of Calomel. By Mr. Whatton 487 



Astronomical Observations. By Col. Beaufoy, FRS 430 



Description of a new Wind Guage, or Apparatus, for determining the 



effective Pressure of the Wind upon a given Surface. By Col. Beaufoy, 



FRS. (With a Plate.) '. 431 



Tables of Temperature, and on the Causes of Calorific Capacity, Latent 



Heat, &c. By John Herapath, Esq. (continued) 434 



Reply to Mr. Tredgold. By John Herapath, Esq 46"2 



Congreve Rockets 467 



Improvement in Woulfe's Apparatus 468 



Yellow Fever 4(38 



Antique Boats 468 



Steam Navigation 468 



New Apple 4G9 



Goodman's Improved Stirrup-Iron 4(y : ) 



Comets 4(i(j 



North Polar Expedition 469 



, 



