1891.] -^5' 



London, Eng. ; Direction Gunerale de Statistique, La Plata, 

 S. A. 



Letters of acknowledgment were received from the Royal 

 Mint, Melbourne, Australia (139, 140) ; Academie Hongroise 

 des Sciences, Budapest (135, 136, 137) ; Schweizerische 

 Naturforscliende Gesellscb aft, Bern, Switzerland (142); Prof. 

 Giovanni Capellini, Bologna, Italy (142) ; R. Academia di 

 Scienze, Lettere ed Arti, Padua, Italy (142) ; Universitu de 

 Lyon, Lyon, France (130-139, 141). 



Letters of acknowledgment (144) w^ere received from the 

 Geological Survey Department, Dr. Alfred R. 0. Selwyn, 

 Ottawa, Canada ; Literary and Historical Society, Laval Uni- 

 versity, Hon. J. M. LeMoine, Quebec, Canada ; Canadian In- 

 stitute, Toronto ; Society of Natural History, Portland, Me. ; 

 Dartmouth College, Prof. Charles H. Hitchcock, Hanover, 

 N. H. ; Vermont Historical Society, IMontpelier ; Rhode Island 

 Historical Society, Providence ; Franklin Society, Providence, 

 R. I. ; Boston Society of Natural History, Massachusetts His- 

 torical Society, Public Library, Mr. Robert C. Winthrop, 

 Boston, Mass. ; Museum of Comparative Zoology, Mr. Robert 

 N. Toppan, Prof. J. D. Whitney, Dr. Justin Winsor, Cambridge, 

 Mass. ; Free Public Library, New Bedford, Mass. ; Essex Insti- 

 tute, Salem, Mass. ; American Antiquarian Society, Worcester, 

 Mass. ; Mr. George F. Dunning, Farmington, Conn. ; Connec- 

 ticut Historical Society, Hartford ; Yale University, Profs. 

 O. C. Marsh, W. D. Whitney, New Haven, Conn.; Agri- 

 cultural Experiment Station, Storrs, Conn. ; State Library, 

 Prof. James Hall, Albany, N. Y. ; Buffalo Library, Buffalo, 

 N. Y. ; Prof. Edward North, Clinton, N. Y.; Prof. J. M. 

 Hart, Ithaca, N. Y.; Columbia College, N, Y. Academy of 

 Medicine, N. Y. Historical Society, American Museum of 

 Natural History, N. Y. Hospital Library, Prof. Joel A. Allen, 

 Hon. Charles P. Daly, Dr. Daniel Draper, New York, N. Y. ; 

 Vassar Brothers' Institute, Poughkeei)sie, N. Y. ; Geological 

 Society of America, Rochester, N. Y.; Prof. W. Le Conte 

 Stevens, Troy, N. Y. ; Oneida Historical Society, Utica, N. Y. ; 

 Free Public Library, Jersey City, N. J. ; Prof. Robert W. 



