INDEX. 461 



Page. 



Memoir of Geoffroy St. Hilaire, by Flourens 161 



Members fz-o^>i'o of the Institution, List of (5 



Metamorpbism. Synthetical studies and experiments on 228 



Metereological system of the Institution 35 



Eeductions from 1854 — 1859. Account of 36 



Stations and observers. List of 69 



Observers. Deaths of 79 



Contributions. List of 80 



Mexican Society of Geography and Statistics. Letter from, relative to exchanges . . 100 



Minerals. Classified by Thos. Egleston 38 



Mines in Lake Superior copper region 24 



Mining, ancient, in the Lake Superior copper region. Circular 392 



Miscellaneous collections. Account of 26 



Moon. Connexion of, with low temperatures 19 



Morgan, Lewis H. On an ethnological map of North America 397 



Morlot A. New interest in Archteology awakened by work of 34 



Letter from, on Archseology 99 



Morris, Dr. J. G. Works on Lepidoptera 29 



Mounds, ancient, near St. Louis 386 



Letter from A. J. Hill, relative to map of 99 



Museum. General views relative to 41 



Condition of, in 1861, and visitors to 44 



Additions to 58 



Identification of specimens in 61 



Distribution of specimens 63 



Work done in, during 1861 63 



Table showing total number of specimens in 64 



List of donations to, during 1861 64 



Museum, cantonal, at Lausanne 367 



Museums of the canton of Vaud. Eeport of commissioners of 376 



Mutsun Indians. Account of 34 



Language. Grammar of, published by the Institution , 34 



Natural history 399 



Netherlands. Prize questions of the Eoyal Academy of 453 



Neuroptera. Smithsonian works on 29 



Nitrification. Report on, by Dr. Craig 305 



Northwest Boundary Survey, under Mr. Archibald Campbell 61 



Ofiicers of the Institution. List of 5 



Orthoptera. Work on, to be prepared for the Institution 31 



Osten Sacken, Baron. Remarks relative to entomology 27 



Work on Diptera - - 30 



Peale, Franklin. Proposed photographs of archjeological specimens 35 



Peale, T. R, on the ancient mounds near St. Louis 386 



Pease, W. H. Letter relative to collections from the Sandwich Islands 104 



Photography, astronomical, progress of 191 



