CONTENTS. vii 



XI. Experiments on Allanite, a new Mineral from 



Greenland. By Thomas Thomson, M. D. 371 



XII. A Chemical Analysis of Sodalite, a new Mineral 



from Greenland. By Thomas Thomson, M D. 387 



XIII. Demonstration of the Fundamental Property of the 



Lever. By David Brewster, LL. D. - 397 



XIV. On the Rocks in the vicinity of Edinburgh. By Tho- 



mas Allan, Esq. - 405 



