IV CONTENTS. 



Page 



Dr. Prout on the ultimate Composition of simple Alimentary 

 Substances ; with some preliminary Remarks on the Analysis 



of organized Bodies in general 98 



Mr. R. Phillips on the Means, of ascertaining the Purity of Sul- 

 phate of Quina Ill 



Mr. Main on the Phenomena of Water-spouts 114 



Mr. Gray on the Nursing Pouch or Chamber of the Chama con- 



camerata of Gmelin 117 



Dr. Roget on an Apparent Violation of the Law of Continuity. ] 18 

 Prof. Hunefeld on the Titaniferous Iron-slag of Konigshutte in 

 Upper Silesia, and on the Probability of its containing Tan- 



talium 121 



New Books : — Philosophical Transactions for 1827. Part II. 

 Transactions of the Linnaean Society of London. Vol. 15th. 

 Part II. — Memoirs of the x\stronomical Society. Vol. 3rd. 



Part 1 126—127 



Proceedings of the Royal Society 128 



Linnaean Society 130 



w Geological Society 132 



Astronomical Society 136 



Royal Geological Society of Cornwall 138 



Royal Academy of Sciences of Paris .... 139 



Mr. Faraday on the Fluidity of Sulphur and Phosphorus at 



Common Temperatures 144 



Elementary Nature of Bromine— Quantity of Bromine in Sea 



Water 145 



Sale of Bromine — Preparation of lodous Acid — New Borate 

 of Soda — Analysis of a Salivary Concretion— Haidingerite, 



a new Mineral Species 146 



M. Sdrullas's Bromide of Selenium 147 



Electricity of Gases and the Atmosphere 148 



Rose-coloured Petrosilex from Sahlbergh in Sweden — Nontro- 



nite, a new Mineral 149 



Analysis of some Vegetable Products 150 



New Chloride of Manganese — On the Power of Water and 



Bromine in conducting Electricity 151 



Effects of Heat upon Sulphur— Peroxide of Barium 152 



On certain Habitudes of Sepias — Notice of an Error in Gal- 



braith's Mathematical Tables and Formulae 153 



Errors in Hutton's Log. Tables (Fifth Edition) — Crystalliza- 

 tion of Phosphorus — Chemical Examination on Ancient In- 

 struments, &c. — London Institution 154 



New Patents 155 



Meteorological Observations 157 



by Mr. Howard near London, 



Mr. Giddy at Penzance, Dr. Burney at Gosport, and Mr. 

 Veall at Boston 160 



NUMBER XV.— MARCH. 



Mr. Gilbert on the Regular or Platonic Solids 161 



Mr. 



