INDEX. 



Abbott, Dr. E. P., Specimens presented by 45,57 



Additions to Museum in 1855 57 



Agassia, Prof., Assistance rendered to -.. 32 



Agassiz, Prof. , Researches of. 23 



Agassiz, Prof. , Eesolution of, Relative to Exclianges _ 79 



Agricultural Society of Illinois, State Fair. 46 



AlgjB, Prof. Harvey's Lecture on. _ 87 



introduction _ 87 



the root 92 



the frond 94 



color 97 



fructification 99 



movements _ 101 



habitat. 104 



geographical distribution 107 



mode of collecting and preserving specimens 115 



uses of 118 



thanks to collectors of 129 



Alvord, Major Benjamin, Tangencies of Circles and Spheres 18 



American Academy, Resolution of. Relative to Exchanges 79 



American Ethnological Society, Letter from 307 



Anderson, Dr. W. "W., Specimens presented by 44 



Antisell, Dr. , Collections made by 44 



Appleton bequest to American Academy 22 



Api^ropriations for 1856 71 



Archaeology of the United States, Haven's Memoir on 17 



Arctic Expedition of Dr. .Kane . 47 



Aurora Borealis, Directions for observing 247 



In northern latitudes, Notices of. 18 



Paper on, by Prof. Olmsted. 18 



Ayres, Dr. W. O., Specimens presented by 44, 57 



Badger, Hon. Geo. E., elected a Regent. 76 



Baird, Spencer F. , Report for 18551 36 



Baker, M. , Exploration by 46 



Baker, Woods, Translation of Mijllcr's Physics, by - 311 



Bancroft, Geo. , Letter from _ 309 



Barnard, Henry, Work on Education ..: 25 



Barometer, Description of Green's Standard 251 



Directions for Reading 1 225 



Altitude and Verification 226 



