62 THE NAUTILUS. 



FAUNA MOLLUSCORUM EXTRAMARINORUM ISLANDLE. By 

 Hans Schesch. (Reprint from Report Scientific Society of 

 Iceland, pp. 1-35, 1921.) 



HYPERTROPHY IN THE ANCYLID/E. By Bryant Walker. 

 (Reprint 22nd Rept. Mich. Acad. Sci., 1920.) 



RELATIONS OF THE ANCYLINE FAUNA OF SOUTH AFRICA AND 

 SOUTH AMERICA. By Bryant Walker. (Reprint 22nd Rept. 

 Mich. Acad. Sci, 1920.) 



LES VARIATIONS ET LEUR HEREDITE CHEZ LES MOLLUSQUES. 

 Par Paul Pelsener. (Memoires Acad. Roy ale de Belgique, 

 Classe des Sciences, 2nd ser., Tome V, 826 pp., Dec. 1920.) 



EGOS AND YOUNG OF THE RIVER LIMPET, ANCYLUS FUSCUS 

 C. B. AD. By William F. Clapp. (Occas. Pap., Boston Soc. 

 N. H., vol. 5, pp. 5-10; plate.) Interesting account of the 

 pairing and the early development. 



NOTES. 



THE HINKLEY AND NASON COLLECTIONS: The Museum of 

 Natural History of the University of Illinois has recently 

 acquired the collection of the late Anson A. Hinkley. This 

 collection contained upwards of 200,000 specimens of land 

 and fresh-water mollusca. The heirs of the W. A. Nason 

 estate have presented Dr. Nason 's collections of insects and 

 mollusks to the above museum, consisting of upwards of 

 50,000 specimens of insects and 10,000 specimens of mollusks. 

 -C. W. J. 



The collection made by the late Mrs. Williams of Chicago 

 has been acquired by Mr. W. F. Webb of Rochester, N. Y. 

 It is very rich in handsome shells, containing about 4000 

 specimens of Cypraa, 350 species of Conus, 90 of Valuta, 

 100 of Oliva, 2 perfect Pleurotomarias, an Argonauta argo 12 

 inches in diameter, among many other fine things. 



CREPIDULA FORNICATA IN THE BRITISH ISLES : The following 

 interesting note is taken from "Animal Life in Scotland," 



