HIS TORT of the SOCIElT. 7 



ferted in the laft volume of the Tranfadions. The paper it- 

 felf is the firft of the Phyfical Clafs in this volume. [See Part II. 

 p. I.] 



Phyf. CI. Dr Monro read a paper, being Experiments on 1793. 



the Nervous Syftem with Opium and Metalline Subftances, DrMmm^on 



vv^ith a view of determining the Nature and Effe(5ts of Animal '^^ °'"°"' ^''- 

 Ele(3:ricity. This paper is publifhed feparately. 



Item. 



At this meeting a paper was alfo communicated from An- 

 drew Mac KAY, LL. D. containing an Account of a Series of 

 Obfervations, made by him in the Obfervatory at Aberdeen, 

 for determining the Latitude of that place. 



Dr Mackay on 

 the latitude of 

 Aberdeen. * 



Dr Mackay alfo promifed to fend his Obfervations for de- 

 termining the Longitude of the Obfervatory. Thefe were not 

 received till September 1796. Both papers are inferted in this 

 volume, Part II. No. VI. p. 135. 



Dr James Anderson read a paper, entitled, Obfervations 

 on Peat Mofs. This paper has been pubhfhed feparately. 



Phvf. CI. A paper was read from Mr Loghead, F. R. S. 

 Edin. on the Natural Hiftory of Guiana. It is inferted in this 

 volume, Part II. No. II. p. 41. 



1794. 



Jan. 6. 

 Dr Anderfon on 

 peat mofs. 



March 3. 

 Mr Lochead on 

 the natural hif- 

 tory of Guiana. 



Phyf. CI. Dr Hctton read the firft part of a paper, being a 

 Differtation on the Philofophy of Light, Heat, and Fire. This 

 paper, which confifted of feveral parts, was read at the different 

 Meetings of the Society in May, June, July, Auguft, and De- 

 cember, of this year. It has been fince publifhed feparately in 

 one volume 8vo. The following abftrad contains an account 



of 



April 7, 



Dr Hutton on 

 the philofophy 

 of light, heat, 

 and fire. 



