144 



The Committee, consisting of Prof. A. D. Bache, Dr. Pat- 

 terson, and Mr. Walker, on Prof. Loomis's paper, read Octo- 

 ber 18th, and entitled "Additional Observations of the Mag- 

 netic Dip in the United States, by Elias Loomis, Prof, of 

 Mathematics and Natural Philosophy in Western Reserve 

 College," reported in favour of publication in the Transactions 

 of the Society. The publication was ordered accordingly. 

 The following abstract was given in the report of the Com- 

 mittee. 



The paper of Prof. Loomis contains the result of his observations 

 of the magnetic dip at twenty-two places in the United States. The 

 stations, with the latitude and longitude of each, the date of the obser- 

 vations for dip, and the determinations resulting from them, are as 

 follows : 1. Hudson, Ohio, lat. 41° 15' N., long. 5h. 21m. W., August 

 16th and 19th, 1839, A. M. Dip 72° 48'.4. Buffalo, New York, 

 lat. 42° 53' N., long. 5h. 16m. W., August 31st, A. M. Dip 74° 

 40'.8. Oswego, New York, lat. 43° 26' N., long. 5h. 6m. W., 

 September 1st, A. M. Dip 75° 11 '.3. Syracuse, New York, lat. 

 43° N., long. 5h. 5m. W., September 2d, A. M. Dip 74° 50'.9. 

 Utica, New York, lat. 43° 9' N., long. 5h. lm. W., September 3d, 

 P. M. Dip 74° 57'. 2. Schenectady, New York, lat. 42° 48' N., 

 long. 4h. 56m. W., September 4th, P. M. Dip 74° 36'.1. Albany, 

 New York, lat. 42° 39' N., long. 4h. 55m. W., September 4th, noon. 

 Dip 74° 51'.3. West Point, New York, lat. 41° 25' N., long. 4h. 

 56m. W., September 5th, P. M. Dip 73° 27'.4. New York City, 

 lat. 40° 43' N., long. 4h. 56m. W., September 9th, A. M. Dip 72° 

 52'.2. New Haven, Connecticut, lat. 41° 18' N., long. 4h. 52m. 

 W., September 11th, A. M. Dip 73° 26'.7. Hartford, Connecticut, 

 lat. 41° 46' N., long. 4h. 51m. W., September 13th, A. M. Dip 73° 

 58'.1. Springfield, Massachusetts, lat. 42° 6' N., long. 8h. 50m. 

 W., September 14th, A. M. Dip 74° 06'. 9. Longmeadow, Massa- 

 chusetts, lat. 42° 2' N., long. 4h. 50m. W., September 14th, P. M., 

 74° 05'.3. Worcester, Massachusetts, lat. 42° 16' N., long. 4h. 47m. 

 W., September 16th, P. M. Dip 74° 20' .6. Cambridge, Massachu- 

 setts, lat. 42° 22' N., long. 4h. 44m. W., September 17th, P. M. Dip 

 74°20'.l. Providence, Rhode Island, lat. 41° 50' N., long. 4h. 

 46m. W., September 19th, P. M., 73° 59'.6. Princeton, New Jer- 

 sey, lat. 40° 22' N., long. 4h. 58m. W., September 21st, A. M. Dip 

 72° 47'. 1. Philadelphia, Pennsylvania, lat. 39° 57' N., long. 5h. 



