524 INDEX. 



Page 



Memoir of Henry by Prof. Joseph Levering 427 



Memoir of Henry by Prof. Alfred M. Mayer 475 



Memoir of Henry by Dr. Orlando Meads 130 



Memoir of Henry by Prof. Simon Newcomb 441 



Memoir of Henry by William B. Taylor _ 205 



Memoir of Henry by Dr. James C. Welling 177 



Memoir of Henry directed by resolution of the Regents 28 



Metals, capillarity of, observed 263 



Meteoric determination of longitude, by Henry, Bache, and others 271 



Meteorological observations for the country, inaugurated by Henry 287,435,463 



Meteorological work of Henry 212, 257, 286 



Mitchell, Rev. Samuel S. Funeral Address by '___ ' 15 



Molecular constitution of matter, hypothesis of_ 266 



Moll's " quantity " electro-magnet compared with Henry's 220 



Monument to Henry, proceedings in Congress regarding 511 



Morrill, Hon. J. S. Bill presented by, in the U. S. Senate for erecting a statue of 



Henry 512 



Morse, Prof. S. F. B. experiments of, in electric telegraphy 50, 150, 381 



Morse, Prof. S. F. B. Henry's encouraging letter to 384 



Mother of Joseph Henry 54 



Motive powers discriminated and classified 273 



Motor, electro-magnetic, first devised by Henry 143,230,445 



Multiple-coil magnet of Henry 85, 218, 229, 390, 444, 484 



Multiple-coil magnet of Henry, employed by Faraday 222,230,390 



Museum, beyond the capacity of the Smithsonian building 419 



Museum, efforts of Henry to detach, from the Smithsonian Institution 283 



Museum, National, supported by the Government 460 



National Government, services of Henry to 133,316 



National Museum, efforts by Henry to obtain the establishment of 285 



Natural selection, views of Henry on 342,507 



Newcomb, Prof. Simon, biographical memoir of Henry by 441 



Newcomb, Prof. Simon, a pall-bearer at the funeral of Joseph Henry n 



New York State, survey of a State road through, by Henry in 1826 57, 183, 210, 428 



New York State, topographical elevations of, by ifenry in 1829 270,444 



Nott, Dr. E. letter to, from Henry s 409 



Obituary memoir of Joseph Henry, by Prof. Joseph Lovering 427 



Observations on the comparative heat of the solar spots 269, 431, 448, 502 



Observations on the earth's magnetic intensity at Albany 258,445 



Observatories for physical, magnetical, and chemical research 304 



Oersted's announcement of the re-action between a galvanic current and the 



magnetic needle 79, 213, 477 



Official correspondence of the Smithsonian Institution 301 



Ohm the first to announce the law of galvanic currents in 1827 227,430 



Ohm, the papers of, first published in English in 1841 227,490 



Ohm, the theory of, for years universally neglected 227,430,489 



Oils for illumination, investigation of, by Henry 309,319,421,502 



Organic dynamics, Henry's conception of 335 



Organic " force " but a department of the physical 273 



Organization of the Smithsonian Institution, proposed by Henry 275,399,433,456 



Oscillation of electrical discharge, discovered by Henry 255, 396, 448 



Pall-bearers at the funeral of Joseph Henry 11 



Parentage of Joseph Henry 54,177,442 



Parker, Dr. Peter, chairman of executive committee of the Board of Regents, to 



make arrangements for a public commemoration 1,28 



Parker, Dr. Peter, one of a committee appointed by the Regents, to arrange the 



funeral ceremonies of Joseph Henry 10, n 



