INDEX. 265 



Method applied to Investigation, Lectures on 251 



Metropolitan Mechanics' Institute, Models lent to 76 



Metropolitan Mechanics' Institute Lectures 27 



Mexico, Institutions in 50 



Microscopic Examination of Soundings 192 



Microscopic Organisms, New Forms of 17 



Minerals received 1853 54 



Minnesota, Historical Society of 214 



Mitchell, Miss Maria 171 



Modern Athens, Lecture on 183 



Modern Egypt and its Institutions, Lectures on 27 



Modern Europe, Lectures on. 27 



Monograph of the Fresh Water Cottoids 192 



Monograph of Mosasaurus 191, 172 



Morfit, Campbell 216 



Morphology of the Vegetable Kingdom, Lectures on 207 



Morris, Dr. Jno. G. , Lectures by 230 



Morton, Samuel G., Report on Squier & Davis 144 



Mosasaurus, Monograph of 191, 172 



Mounds of Western Virginia 203 



Mower, Dr. , Valuable Aid from 197 



Miiller, M.,Work on Electricity 19 



Museum 253, 249, 226, 202, 181, 56, 54, 51, 26 



Museum of E.xploring Expedition 182 



National Museum, Importance of 227 



Natural History, Promotion of, by the Institution 232 



Natural History, Work done in 55 



Nautical Almanac 244, 221, 201, 173 



Neptune, Ephemeris of 221, 201, 173, 160 



Neptune, History of Discovery of Planet 179 



Neptune, Memoir on the Planet 169 



New Expedition in Search of Sir John Franklin, Lecture on 27 



New York Meteorological System 222, 196 



New York Meteorological Observers 63 



Nitre, Explosion of 171 



Norman, B. M., Agent 51 



Norway, Institutions in 41 



Notices of Public Libraries in the United States 216, 194, 31 



Objections to publishing memoirs answered 159 



Observations in Series or Summaries 64 



Observers, Classes of. 174 



Observers, List of Meteorological 60 



Occultations, Description of. 244 



Occultations for 1850 173 



Occultations for 1851 201 



Occultations for 1852 222 



Octavo publications for 1853 37 



Officers of the Institution 5 



Original Researches 245, 220, 199, 172, 159, 26 



Original Research, Encouragement to 137 



Origin and Growth of the Union during the Colonial Period, Lectures on 207 



Papers presented to Ptoyal Society by Smithson 110 



