ly 



CONTENTS. 



XX. 



XIX. 



on the Inorganic Food of Lichens. By Ro- 

 bert D. Thomson, M.D., 



Food of Lichens, 

 Preparation of Parietin, 

 Composition of Parietin, 

 Parietin as a Test of Alkalies, 



On the Yamud and Goklan Tribes of Turko- 

 mania. By the Baron Clement Augustus 

 DE Bode. Communicated by the Ethnolo- 

 gical Society, . . 



New Publications received, 



XX. List of Patents granted for Scotland from 

 22d March 1844 to 25th June 1844, 



Page 



187 



188 

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 194 

 195 



199 

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219 



