108 THK NAUTILUS. 



C. E. Beechek, of Yale College Museum, called upon us for only 

 about ten minutes, but we bad^tirae to ask, how was his collection of 

 recent Brachiopoda coming on ? And to hear that he had about 

 80 out of the 130 or so known species, and is still trying for more. 

 Dr. J. S. Newberry, who has been professor of Geology and 

 Paleontology in Columbia College, New York City, for twenty-two 

 years, died at New Haven, Conn., Dec. 7, 1892. 



EXCHANGES. 



Will some of the members of the A. A. of C. kindly send me some 

 'Lixi'SG species of Helix for my snailery? Zonites not wanted, as 

 they cannot survive the trip across the continent. The favor will 

 be fully appreciated and receipt of specimens acknowledged. — 

 Willard M. Wood, 2817 Clay St., San Fi'aneisco, Cal. 



Shells and books to exchange. Send lists, and receive mine. — 

 Chas. Le R. Wheeler, Damascus, Pa. 



Wanted, by purchase or exchange, — good specimens of A7iodo7ita 

 Ferussaciana Lea, size immaterial provided beaks are perfect. — 

 Bryant Walker, 18 Moffat Bid., Detroit, Mich. 



Wanted. Woi-ks on Land Shells, and rare North American 

 and Foreign Helices. Offered, Mesodon dentiferus, Sayii, Acaji- 

 thiniila harpa, etc. — A. W. Hanham, Bank of British North Amer- 

 ica, Quebec, Canada. 



To exchange in large or small quantities. Anodonta suborbi- 

 culata Say and Anodonta corpnlenta Cooper, also about 40 species of 

 the fine Spoon river Uniones and univalves. — Dr. W. S. Strode, 

 Lewistown, III. 



Exchange. Unios heterodon Lea, lanceolatus Lea, Tappanianus 

 Lea, Anodonta Williamsvi Lea and Marg. undnlata Say (pink var.) 

 for other Unios not in my collection. — W. T. Farrer, Orange, Va. 



