INDEX. 



333 



Madison, Mrs., presents certain meteoro- 

 logical observations by the late Presi- 

 dent Madison, 117. 



vote of thanks to, for the same, 117. 



Magnetic declination, extraordinary va- 

 riations of, at Cambridge, 293. 



declination at Toronto, on the Feb. 



magnetic term day, 293. 



diagram, exhibiting changes of, at 



Cambridge and the Girard College, 

 311. 



■ dip and intensity, convenient mode 

 of determining, 77. 



dip, report on Prof. Loomis's paper 



on the, 116. 



— — dip in the United States, additional 

 observations on the, by Prof. Loomis, 

 144. 



dip, experiments by Prof. Bache on 



the, 294. 



dip, observations on the, 293, 299. 



dip, observations of Prof. Loomis 



on the, compared with those of Pro- 

 fessors Bache and Courtenay, 146. 



distribution, Prof. Henry on, 233. 



— — intensity at twenty-one stations in 



Europe, Prof. Bache on the, 181, 185. 

 — — intensity at Gottingen and Munich, 



simultaneous changes of, 200. 



intensity at several places in the 



United fetates, 293, 299. 



observations, Dr. Locke's paper on, 



19, 42. 



— — observations, letter from Major Sa- 

 bine respecting, 313. 



observations, letter from the foreign 



Secretary of the Royal Society on ; 

 111. 



observations in different quarters 



of the globe, measures of the British 

 government for obtaining, 117. 



observations, combined, recom- 

 mended by the Royal Society, 242. 



observations, combined, resolutions 



respecting, 148. 



observations at several places in 



the north-west of the United States, 

 by Prof. Locke, 181. 



observations, Feb. 20, 1840, chart 



of the, by Prof. Bache, 200. 



observations at Cincinnati and 



Louisville, &c. &c. 214. 



observations, memorial to Secretary 



of War on resolutions respecting, 320. 



observations, report to House of 



Representatives respecting, 320. 



variation on the terms of the Ger- 

 man Magnetic Association, Aug. 30 

 and Nov. 30, 1839, 151. 



and meteorological observations, 



memorial to the Secretary of War re- 

 garding, 151. 



and meteorological observations, 



Major Sabine on, 169. 



Magnetism, Dr. Sherwood's claims to 



discoveries in, reviewed by Dr. Pat- 

 terson, 25, 27. 

 terrestrial, vertical components of 



the force of, instrument for measuring, 



311. 

 Markoe, Mr. F., Jun., Secretary of the 



National Institution of Washington, 



letter from, 299. 

 Mason, Mr. E. P. See Smith, Mr. H. L. 

 Mastodon and other bones at St. Louis, 



Mo., 271, 279. 

 bones, committee to describe, 166 — 



report, 279. 



dental system of the, 293. 



Maximilian, Prince, of Neuwied, resolu- 

 tion respecting, 217. 

 Medals, copied by galvanism, specimens 



exhibited, 171, 181. 

 Medals. See Coins. 

 Medhurst, Mr., his vocabularies referred 



to, 41. 

 Members elected, 3, 11, 73, 95, 108, 136, 



169, 201 , 256, 290. 

 surviving, of the Society, number 



of, 169. 

 Mendenhall, Mr. B. F., deposits an il- 

 luminated MS. in the Pali language, 



80. 

 Meteorological observations, report of 



committee on, 104. 

 report to House of Representatives 



respecting, 320. 

 Meteors, corresponding observations of, 



mode of determining longitudes from, 



161. 

 or shooting stars, Prof! Bache on 



the, 69. 

 1 of November, 1838, Prof. Bache on 



the, 60. 

 of November, observed in the ex 



ploring expedition, 77. 



of August, 1840, Mr. Walker on 



the, 261. 



of August and November, 1840, 



Mr. Walker on the, 310. 



of August, 1840, Prof. Forshey on 



the, 261, 292. 



of November, 1840, Prof. Bache on 



the, 299. 



of November, 1840, Mr. Gillies on 



the, 301. 



Mirage, lateral and vertical, two ap- 

 pearances of, by Prof. S. Alexander, 

 188. 



Mitchell, Dr., describes Jeffrey's respi- 

 rator, 47. 



solidifies carbonic acid, 15. 



Morgan, Benjamin R., death of, announ- 

 ced, 301. 



Morris, Miss Margaretta H., on the Hes- 

 sian fly, and the Ceraphron destructor, 

 its parasite, 282. 



Robert, correspondence of, 209. 



