108 THE NAUTILUS. 



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

 about ten minutes, but we had^tiine to ask, bow was bis collection of 

 recent Brachiopoda coming on ? And to bear tbat be had about 

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

 Dr. J. S. Newberry, wbo bas 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 tbe members of tbe A. A. of C. kindly send me some 

 lAvrsG species of Helix for my snailery? Zonites not wanted, as 

 tbey cannot survive tbe trip across tbe continent. Tbe favor will 

 be fully appreciated and receipt of specimens acknowledged. — 

 Willard M. Wood, 2817 Clay St., San Francisco, Cal. 



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

 Chas. Le H. Wheeler, Damascus, Pa. 



Wanted, by purchase or excbange, — good specimens of Anodonta 

 Ferussaciana Lea, size immaterial provided beaks are perfect. — 

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



Wanted. Works on Land Shells, and rare North American 

 and Foreign Helices. Offered, Mesodon deuiiferus, Sayii, Acan- 

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

 ica, Quebec, Canada. 



To exchange in large or small quantities. Anodonta suborhi- 

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

 tbe fine Spoon river Unioues and univalves. — Dr. W. S. Strode, 

 Lewistown, III. 



Exchange. Unios heterodon Lea, lanceolatus Lea, Tappanianus 

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

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



