CONTENTS. VU 



On Certain Products of Decomposition of the Fixed Oils in Contact 

 with Sulphur. By Dr T. Anderson, . . . 134 



On the Structural relation of Oil and Albumen in the Animal Eco- 

 nomy. By Dr J. H. Bennett, .... 136 



Experiments on the Ordinary Refraction of Light, by Iceland Spar. 

 By W. Swan, Esq. Communicated by Professor Kelland, . 139 



On the Boulder Formation and Superficial Deposits of Nova Scotia. 

 By J. W. Dawson, Esq. Communicated by Dr Gregorj', . 140 



On the Mode of Occurrence of Gypsum in Nova Scotia, and on its 

 Probable Origin. By the Same, . . . .141 



On certain Anomalous Deviations of the Transit Instrument at the 

 Royal Observatory. By Professor Smyth, . . .142 



Results of Makerstoun Observations, No. III. On the Solar and 

 Lunar periods of the Magnetic Declination. By J. A. Broun, 

 Esq. Communicated by Sir T. M. Brisbane, Bart., . , 144 



Notice of Two Ores of Copper, one of them a New Mineral. By 

 Professor Connell, . . . . . .146 



Biographical Memoir of the late Dr Hope. By Dr Traill, . 148 



Note on the Constitution of the Phosphates of the Organic Alkalies. 

 By Dr Thomas Anderson, . . . . .148 



Examination of some Theories of German Writers, and of Mr 

 Grote, on the Authorship of the Iliad and Odyssey. By Pro- 

 fessor Dunbar, . ..... 154 



On Algebraical Symbolism. By Bishop Terrot, . . 156 



Account of a Geological Examination of the Volcanoes of the Vi- 

 varais. By Professor Forbes, .... 158 



Geological Notices. By the Rev. Dr Fleming, . . 159 



Verbal Notice. By the Rev. Dr Fleming, . . .159 



On the Preparation of Kreatine, and on the Amount of it in the 

 Flesh of different Animals. By Dr Gregory, . .160 



Notices of a Flood at Frasthnz, in the Vorarlberg, in the Autumn 

 of 1S46. By William Brown, Esq. . . .162 



Contributions to the Phenomena of the Zodiacal Light. By Pro- 

 fessor Smyth, . . . . . .162 



Practical Illustration of the Adjustments of the Equatorial Instru- 

 ment. By Professor Smyth, . . . .164 



On the Vertebral Column, and some Characters that have been 

 overlooked in the Descriptions both of the Anatomist and Zoolo- 

 gist. By Dr Macdonald, ..... I66 



On the Theory of the Parallel Roads of Lochaber, By James 

 Thomson, Esq., jun., Glasgow. Communicated by Professor 

 Forbes, . . . . . . .170 



On an Instrument for measuring the extensibility of Elastic Solids. 

 By Professor Forbes, . . . . .173 



On the Anthracite of the Calton Hill. By the Rev. Dr Fleming, 175 



On some Phenomena of Capillary Attraction observed with Chloro- 

 form. Bisulphurct of Carbon, and other Liquids. By Dr George 

 Wilson, . . . . . .176 



Notice of the Orbit of the Binary Star a Centauri, as recently 

 determined by (Captain W. S. Jacob, Bombay Engineers. By 

 Professor Smyth, . . . , .178 



