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Plaza Universal de Todas Ciencias, y Artes. Por el Doctor C. Suarez 

 de Figueroa. Perpignan, 1630. — From Mr. E. C. Wines. 



Weekly Register. Edited by William O. Niles. Vol. LIL— From 

 the Editor. 



Necrological Notice of Dr. Philip Syng Physick; delivered before the 

 American Philosophical Society, May 4, 1838. By W. E. Hor- 

 ner, M. D. Philadelphia, 1838. — From the Author. 



Mr. Kanej from the Secretaries, reported that they had 

 chosen Dr. Franklin Bache to be the Reporter of the Society. 



The Committee, appointed on the Communication of Dr. 

 John Locke, of Cincinnati, read at the last meeting, made 

 the following Report, which was adopted. 



" The Committee to whom was referred the Communication of Pro- 

 fessor John Locke, of Cincinnati, report that it gives the details of a 

 series of experiments, made for the purpose of determining the mag- 

 netic intensity and dip for certain positions in Ohio. For these ex- 

 periments he had furnished himself, in London, with the best appa- 

 ratus, and had vibrated there two needles of the form recommended 

 by Hansteen, and one in the form of a small flat bar. Five months 

 afterwards, namely on the 17th of January, 1838, he again vibrated 

 these needles at Cincinnati, and found the ratio of horizontal inten- 

 sity at the former place to that at the latter, as follows : by needle 

 No. 1, as 1 to 1.1624; by needle No. 2, as 1 to 1.1639; by No. 3, 

 as 1 to 1.2037. Of these results, the author prefers the last; inas- 

 much as the magnetism of needles is liable to decrease, but not to 

 increase. 



"On the 20th of August, 1837, he made experiments with his dip- 

 ping needle, to determine the dip at Westbourn Green, near London, 

 the mean of which gives 69° 23'. 3. 



" On the 26th of Nov. 1837, the mean of a series of experiments 

 made at Cincinnati, in lat. 39° 6' N., and long. 84° 27' W.. gave 

 the dip = 70° 45'.75. 



"At Dayton, Ohio, in lat. 39° 44' N., and long. 84° 11' W., the 

 dip was found to be 71° 22'.75. on the 26th of March, 1838. 



"At Springfield, Ohio, in lat. 39° 53' N., and long. 83° 46' W., 

 the dip was found, on the 29th of March, 1838, to be 71° 27'.375. 



"At Urbana, lat. 40° 03' N., long. 83° 44' W., March 30, 1838, 

 the dip was found = 71° 29'.94. 



" At Columbus, the seat of government of Ohio, lat. 39° 57' N., 

 long. 83° W., April 3d, 1838, the dip was found = 71° 04'. 875. 



