®, 



1840, 



72 59.7 



10, 



>> 



73 08.1 



10, 



j> 



72 59.8 



11, 



» 



73 00.7 



22, 



5> 



73 12.0 



23, 



JJ 



72 58.0 



23, 



J? 



72 51.3 



28, 



» 



72 50.1 



15, 



JJ 



72 56.6 



16, 



J» 



72 53.0 



31, 



» 



72 48.2 



310 



Bazetta, „ 41 20 80 45 Sept. 



Kinsman, „ 41 30 80 34 „ 



Hartford, „ 41 19 80 34 „ 



Warren, „ 41 16 80 49 „ 



Cleveland, „ 41 30 81 42 „ 



Bedford, „ 41 24 81 32 „ 



Twinsburgh, „ 41 20 81 26 „ 



Tallmadge, „ 41 06 81 26 „ 



Shalersville, „ 41 15 81 13 Oct. 



Streetsboro', „ 41 15 81 20 „ 



Tallmadge, „ 41 06 81 26 „ 



Dr. Patterson, from the Observatory Committee, laid before 

 the Society the following Ordinance, passed by the City Coun- 

 cils on the 19th of November last. 



"An Ordinance to authorize the American Philosophical Society 

 to erect an Observatory in Rittenhouse Square. 



Sect. 1. Be it ordained and enacted by the Citizens of Phila- 

 delphia in Select and Common Councils assembled^ That the Ame- 

 rican Philosophical Society be and they are hereby authorized to 

 erect, at their expense, an Observatory in Rittenhouse Square, the 

 same to be built under the supervision of the Committee on City Pro- 

 perty, and after a plan to be approved by them ; subject, nevertheless, 

 to the right of the Mayor, Aldermen, and Citizens of Philadelphia, to 

 prescribe regulations for the government and management thereof, 

 and at any time the Select and Common Councils may deem it expe- 

 dient, to take possession of and remove the said building from the said 

 square." 



Signed by the Presidents of the Select and the Common Council. 



Whereupon it was resolved, that the terms of the Ordinance 

 be accepted by the Society, and that the Observatory Commit- 

 tee be instructed to take the necessary measures, under the 

 powers given them, for carrying the objects of the Ordinance 

 into effect. 



Mr. Walker read a communication, entitled "Researches 

 concerning the Periodical Meteors of August and November, 

 by Sears C. Walker," which was referred to a Committee. 



Prof. Bache brought before the Society an instrument for 

 measuring the changes in the vertical components of the force 



