CONTENTS. Ill 



PAGE 



REVIEWS:— 



1. Die Conchylien der Nord-Deutschen Tertiar-gebirges. 



The Fossil Shells of the Tertiary Formations of the 

 North of Germany. By Prof. Beyrich, . 158 



2. Memoirs of the Life and Scientific Researches of John 



Dalton, Hon. D.C.L., Oxford, &c. By William 

 Charles Henry, M.D., F.B.S., . . .163 



3. The Principles of Harmony and Contrast of Colours, and 



their applications to the Arts. By M. E. Chevreul, 

 Membre de l'lnstitut de France &c, &c, . 166 



CORRESPONDENCE :— 



1. Letter from Mr M' Andrew to Dr Balfour, relative to a 



Communication from the late Professor E. Forbes, 169 



2. Selwyn on Australian Geology, . . 171 



3. Spratt on the Occurrence of Coal in Turkey, . 172 



PROCEEDINGS OF SOCIETIES:— 



Royal Society of Edinburgh. 



1. Farther Experiments and Bemarks on the Measurement 



of Heights by the Boiling Point of Water. By Pro- 

 fessor J. D. Forbes, .... 174 



2. On the Chemical equivalents of certain Bodies, and the 



relations between Oxygen and Azote. By Professor 

 Low, ...... 175 



3. Miscellaneous Observations on the Salmonidge. By John 



Davy, M.D., F.B.S., Inspector- General of Army 

 Hospitals, . . . . .176 



4. On the Structural Character of Kocks. Part III., Re- 



marks on the Stratified Traps of the neighbourhood 



of Edinburgh. By Dr Fleming, . . 176 



