117 



lias been presented to tlie Institute. They have been named 

 so far as it was possible by Mr. Sliurtleft', a student in 

 the Museum at Cambridge. He shoAved several species 

 of Star fishes, Sea Urchins and Corals from Mr, Eopes, and 

 a fine Cidaris from Wm. G. Webb, and announced a dona- 

 tion of 25 species of fossil and recent Echini from tlio Jfu- 

 seum of Comparative Zoology at Cambridge. He alluded to 

 the different classes of Radiate animals, showing the differ- 

 ence between the several classes and orders, and made a few 

 remarks ujDon tlie formation of Coral reefs, &c. 



Letters were read from Smithonian Institution ; State 

 Historical Societv of Wisconsin ; W. 0. V/hite ; J. K. Wie- 

 gin of Boston; Department of the Interior; Chs. Ward. 

 The letter from the last named person, gave an account of 

 several specimens of bark which wore uniformly and smooth- 

 ly rounded by the action of water falling upon them in "■ pot 

 holes" formed in the rocks, at the base of Great Falls, in the 

 town of Hiram, Oxford County, Maine ; also some general ob- 

 servations concerning the beauty and sublimity of these falls 

 at the various seasons, and the pleasant journey for travel- 

 lers in that direction. 



Donations received since the last evening meetiiig, Avero 

 announced as follows : — 



To the Library — John C. Lee ; B. W. Stone ; Tenney & 

 Co., of Boston ; Secretary of State's Ofiice ; Charles F. Y/il- 

 liams ; Jacob Batchelder ; H. M. Brooks ; Allen W. Dodge : 

 George C. Chase ; N. T. True of Bethel, Maine. 



To the Cabinets — Francis M. Ricker ; H. K. Bryant ; H. 

 E. Story of Belleville, 111. ; C. F. Williams ; Mrs. D. A. 

 White ; Museum of Comparative Zoology, at Cambridge ; 

 Henry O. White. 



Mr. F. W. Putnam stated that Mr. S. H. Scudder of the 

 Museum of Comparative Zoology, was engaged in preparing 

 a monograph of the Orthoptera of New England, and wished 



