ir CONTENTS. 



a new mineral from Miask ; By Fr. v. Worth. 6. 

 Arsenic in Mineral Waters. 7. Nitrification. 8. 

 Phosphate of Lime in Organic Beings, 184—187 



ZOOLOGY. 

 9. Vampire Bats, . . ' 188 



BOTANY. 



10. Quinua, or Chenopodium Quinoa, as a partial substi- 

 tute for the Potato. 11. Separation of Silica from 

 Plants. 12. Collecting of Peruvian Bark, 189-190 



ARTS. 



13. On Shell Cameos. 14. Smelting by Electricity. 15. 



Stereochromy, ..... 191-193 



XXVII. New Publications received, . . . . 193 



XXVIII. List of Patents granted for Scotland from 22d March 



to 22d June 1847, 195 



List of Prizes offered by the Royal Scottish Society 

 of Arts for 1847-8, .... 198 



