IV CONTENTS. 



Page 



On Excessive Heat in America during the Summer of 1 825 120 



Rev. Mr. Ritchie's Reply to the Rev. Mr. Powell 122 



Statement of a Plan for making a minute Survey of the Heavens 124 



Analytical Account of the Philosophical Transactions of the Royal Society 



of London, for 1826. Parts I. and II. {continued) 134 



Proceedings of the Astronomical Society 141 



■ Linnean Society 143 



——————— Geological Society ". 145 



— — Wernerian Natural History Society 147 



— — — — Med ico-Botanical Society of London 1 47 



Crystallization of Sulphur 148 



Meconiate of Morphia 148 



On the Use of Common Salt and Sulphate of Soda in Glass-making .... 148 



Inspiration of Hydrogen 149 



Intelligence from the Land Arctic Expedition, under Capt. Franklin and 



Dr. Richardson 149 



Stereotype Printing 1 52 



On an Air-pump, without Artificial Valves 153 



Hardening of Sieel Dies 154 



Cutaneous Absorption 154 



Animal Magnetism in France 155 



Fossil Megalosaurus and Didelphis 1 55 



Heart of the Frog used for Poison 156 



Taming Rattle-snakes 156 



New Scientific Books 156 



New Patents 1 57 



Mr. Giddy's Meteorological Journal 158 



Mr. Howard's Meteorological Journal I59 



NUMBER III.— SEPTEMBER. 



Dr. Colquhoun's Chemical Essay on the Art of Baking Bread I6I 



Messrs. Babbage and Herschel's Account of the Repetition of M. Arago's 

 Experiments on the Magnetism manifested by various Substances dur- 

 ing the Act of Rotation 183 



Mr. Brayley on the Rationale of the Formation of the Filamentous and 

 Mamillary Varieties of Carbon ; and on the probable Existence of but 

 two distinct States of Aggregation in Ponderable Matter igg 



Mr. Faraday on the Mutual Action of Sulphuric Acid and Naphthaline, 

 and on a new Acid produced 201 



Analytical Account of Prof. Daubeny's work, on active and extinct Vol- 

 canos 215 



I of Philosophical Transactions of the Royal Society of 

 London, for 1826. Parts L and IL (concluded) 226 



