Miscellanies. 397 
Magnetic Dip at various places in Ohio and Michigan,” reported in 
favor of publication, and the Report was adopted. 
The observations recorded in this paper were made with a dipping 
needle by Gambey. The results are contained in the following table, 
Place. Latitude. | Longitude. Date. Magnetic dip. 
Hudson, Ohio, . {41° 15’ N.|81° 24° W. September, 1838./72° 48.2" 
Hudson, Ohio, . |41 15 (81 24 _— |April, May, 1839./72 46.8 
Cleveland, Ohio, 43 30 (81 51 May, ss 26.0 
Detroit, Michigan, 42 19 (83 03 3 “ 173 42.6 
Ann Arbor, do. |42 18 [83 45 | # « |73 13.9 
Ypsilanti, - do. 42 14 (83 38 ws = 140 18.0 
Monroe, do. |41°55 (83 28 * Shwe SD eed 
Toledo, Ohio, 1 41 183 33 ceili “ 173 06.1 
Maumee city, Ohio,41 34 (83 38 . - “of: 409A 
Sandusky, Ohio, 41 29 82 48 ee “ jee as 
Professor Loomis infers from a comparison of these observations 
with others made in the eastern part of the United States, that the 
lines of equal dip intersect the parallels of latitude, their direction 
being from about N. 82° W. to S. 82° E. 
Dr. Chapman, from the Committee appointed to apply to Mrs. Mad- 
ison, for certain meteorological observations made by the late Presi- 
dent Madison, reported that a number of documents had been receiy- 
ed, and presented them to the Society. The secretaries were di- 
rected to return thanks to Mrs. Madison for this donation. 
A necrological notice of the late Bishop White, prepared in pur- 
suance of the request of the Society, by Bishop De Lancey, was 
read. : 
Dr. Chapman announced the death of Matthew Carey, of Phila- 
delphia, a member of the Society, and Mr. Lea was requested to 
prepare an obituary notice of the deceased: 
Dr. Bache announced the decease of Dr. Robert Perceval, of Dub- 
lin, a member of the Society. 
The Librarian of the Society was authorized to furnish to the fam- 
ily of the late Dr. Bowditch, to be placed in the library of the de- 
ceased, any volumes of the Transactions which may be deficient in the 
set belonging to Dr. Bowditch, and the future volumes, so long as the 
library shall be kept open for public use. 
Dr. Hays presented a table, compiled by him,of the peculiarities in 
various cases of individuals not able properly to distinguish colors. 
Mr. Kane added the comparisons which he had made, in the case of a 
friend, with the specimens named by Dr. Dalton, of Manchester, in 
the possession of Professor Bache. 
Professor Bache made a verbal communication of the measures ta- 
ken by the British government, on the recommendation of the British 
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