109 



(luctorii. That these eftects were not owing to any electro-chemi- 

 cal action nt the junction of the copper and gold conductors was 

 proved by substituting gold throughout. 



Dr Dary very rarely succeeded in affecting a galvanometer by 

 atmospheric electricity ; nor did he succeed in changing the colour 

 of chloride of silver by the light of the most brilliant thunder 

 storms, as Mr Brande is believed to have done by voltaic electri- 

 city. 



On the whole, Dr Davy coincides with Mr Faraday in consider- 

 ing atmospheric electricity as intermediate in its nature between 

 common electricity and that of the pile. 



2. Essay towards establishing the Primary Properties of Pa- 

 rallel Lines. By Mr W. Nichol. 

 The object of the author in this paper was to find a new method 

 o^ avoiding Euclid's assumptions in the theory of parallel lines. 

 '^Kis he endeavours to do by proving that lines making equal angles 

 yith a given line cannot recede from one another ; but he does not 

 effect this without the introduction of the consideration of infinitely 

 small spaces. 



Monday, \Sth January 1836. 



Right Hon. LORD GREENOCK, V. P. in the Chair. 



The following Candidates were elected Members of the 

 Society : — 



William Paul, Esq. 

 Robert Paul, Elsq. 



The following Donations were presented : 



The American Journal of Sciences and Arts, conducted by Benja- 

 min Silliman, M. D., LL. D. Vol. xxix. No. 1. (October 

 1833.)— 5'y the Editor. 



Flora Batava. Nos. 100, 101, 102, and 103.— ^j^ the King of 

 Holland. 



Neue Wirbelthiere zu der Fauna von Abyssinien gehorig entdeckt 

 und beschrieben von Dr Eduard Ruppell. 4 parts — By 

 the Author. 



