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At these meetings an increasing interest was manifested, 

 and several valuable communications were presented, 

 abstracts of which have been printed in the Bulletin 

 or reserved for the "Historical Collections." The fol- 

 lowing may be specified: — "On the Mechanism of the 

 Flight of Birds," by C. J. Maynard, "Notes on the 

 Bird Fauna of the Salt Lake Valley and the Adjacent 

 Portions of the Wahsatch Mountains," by Robert Ridg- 

 way, "The Birds of Colorado," by Robert Ridgway ; 

 "On Some New Forms of American Birds," by Spencer 

 F. Baird and Robert Ridgway; "Natural History in the 

 Schools," by Byron Groce ; "Notices of Several Rare and 

 Interesting Fishes from the Harbors of Marblehead, 

 Salem and Beverly," by F. W. Putnam ; "On the Early 

 Days and Rapid Growth of California," by Alfred Pea- 

 body ; "Notice of the Black Fish shot in Salem Harbor, 

 October, 1873," by F. W. Putnam; "On Art Studies," 

 by Walter Smith ; "Notes from the Diary of Wm. Rus- 

 sell, prior to and chiefly during the Time of his Confine- 

 ment in Mill Prison during the War of the Revolution," 

 communicated by James Kimball; "On Copperplate en- 

 graving," by Geo. M. White ; "Journal of Rev. Daniel 

 Shute, D. D., Chaplain of the Expedition to Canada in 

 1758," by James Kimball; "Notes on the Mammals of 

 Portions of Kansas, Colorado, Wyoming and Utah," by 

 J. A. Allen ; "On Various Modes of Illustration," by E. 

 S. Morse; "Description of a Skull of a Mound-builder, 

 from Shell Bed on Rock Island," by A. S. Tiffany ; "A 

 Familiar Talk on Art Matters," by Edward A. Silsbee. 

 A special meeting was held on Thursday evening, in the 

 Whitfield church, Newburyport, for the reading of the 

 memorial address upon the late Henry Coit Perkins, 

 M. D., an esteemed member of the Institute, by Rev. 

 Samuel J. Spalding, D.D. A special meeting was also 



