438 INDEX. 



Page. 



Topography of Blixck Mountain, Forth Carolina .- - 299 



Trees, Economical importance of - 134 



Attacks of insects, &c.,on. - 134 



Transactions of societies in library - - 30 



Transformations of Insect*; .-- — 138 



Trubner, N. , Ludewiaj's Bibliography, published by 80 



Trowbridge, Lieut. W. P., Eesearches of -- 44 



Uuited States Mail Line to California ..- - 45 



United States Mail Steamship Company, 'Hiauks to.. _ 77 



Vaughan, Col , Collections made hj - 45 



Vernier scale of the Barometer, Directions for reading _ 225. 255 



Vieveg and Son, Indebtedness to - 311 



Warner, Hon. Hiram, appointed a Regent 70 



Wayne, James, Collections made by _ 44 



Webb, Dr. Thos., Collections made by - 47 



Wells, Fargo & Co., Aid rendered by, to the Institution 45 



Williamson, Lieut. , Exploration of - 43 



Wind, Observations on Direction of 232 



Force of - 23?i 



Wind- vane, Description and Directions for use of 231 



Wright, Charles, Collections made bj' 47 



Wiirdcmann, Gustavus, Collections made by.. 44 



Wyman. Prof. J., Special Research by 32 



Wynn Estate - 70,77,79 



Zanardini, M. , Exchange of Alg.'c proposed by 57 



Zoology of Illinois, Collection to Illustrate 33 



