646 



APPENDIX. 



tinent of Europe, from whence he inferred tht 

 possibility of Coal existing in a similar situation 

 in Scotland* 



1811. 

 April 27. 

 Professor 

 Jameson 

 on Iceland 

 Crystal. 

 Mr Ellis 

 on the 

 Wind of a 

 Ball. 



Dr Edmon- 

 stone on the 

 Ember 

 Goose. 



Dr Gor d 

 on Sound, 

 and the 

 musical 

 £ar. 



Professor Jameson read a paper on the Geognos- 

 tical Situation of that variety of Calcareous-spar 

 found in Iceland, and named Iceland-spar. A 

 paper from Mr D. Ellis was then read, shewing 

 that the effects of what is called the Wind of a 

 Ball, depend on an accumulation of the electric 

 fluid. The Secretary next read some remarks by 

 Dr Edmonstone on the Colymbus immer, or 

 Ember Goose. This paper is inserted in 2d vol. 

 Mem. p.. 232.-237. And Dr Gordon read a paper^ 

 consisting of Observations and Experiments on the 

 Qualities of the Sensations of Sound j on the dif- 

 ferent modes in which sonorous vibrations are 

 communicated to the auditory nerve ; on the 

 ideas of the distance, and of the angular position 

 of the sounding bodies with respect to the ear, 

 which are associated by experience, with the dif- 

 ferent qualities of sounds ; and on some of the 

 more remarkable differences in the sense of heai'- 

 ing, both original and accidental, which are occa- 

 sionally observed among individuals, and particu- 

 larly on the Musical Ear. 



1811. 

 July 2T. 

 Mr Mac- 

 kenzie on 

 Hemp from 

 Plantain 

 Tree. 



Mr Mackenzie read a paper on manufacturing 

 Hemp from the Plantain Tree cultivated in the 

 West Indies, And the Secretary read a Descrip- 

 tion by Mr Leach of a Sword-fish caught in the 



