CONTENTS. 



XX. On the Topaz of Scotland. By Profes 



sor Jameson, - Page 445 



XXL Some Remarks upon the Pudding or 

 Conglomerate Rock, which stretches 

 along the South Front of the Gram- 

 pian Mountains. By JLieut.-Col. 

 Imrie, - - - 453 



XXII. On the Strontian Lead- glance forma- 



tian. By Professor Jameson, 46 1 



XXIII. On Cryolite. By Professor Jameson, 465 



XXIV. On the Veins that occur in the newest 

 Fleet x-t rap formation of East Lo- 

 thian. By Dr Ogilby, - 469 



XXV. On the Coal-formation of Clackma- 

 namkire. By Mr R. Bald, 



XXVI. On the gaseous combinations of Hy- 

 drogen and Carbon. By Dr Thom- 

 son, - 504 



XXVIL List of Fishes found in the Frith of * 

 Forth, and Rivers and Lakes near 

 Edinburgh, with Remarks. By Pa- 

 trick Neill, Sec. W.S. - 526 



XXVIII. Catalogue of Animals, of the Class 

 Vermes, found in the Frith of Forth, 

 and other Parts of Scotland. By 

 Professor Jameson, - 556 



