108 THE NAUTILUS. 



Fiji Islands, It is named in honor of Mr. F. L. Button of 

 Oakland, who has made a study of Cypraea and Trivia. The 

 type is in the Stanford Collection. — Ida S. Oldroyd. 



The Dates of Publication of the American Marine Con- 

 CHOLOGY, BY TiMOTHY A. CoNRAD, — In the library of the 

 Boston Society of Natural History are parts 1 to 3 of this work 

 in their original dull yellow (probably somewhat faded) covers. 

 Part one or No. 1, was published April, 1831. With this part 

 was issued the title-page, with precisely the same wording and 

 type except that on the cover the date, April, 1831, and No. 1, 

 appear in the upper left and right hand corners, while on the 

 title page the date (1831) only is at the bottom of the page. 

 No. 1 contains pages 1 to 12 and plates 1 and 2. No. 2 was 

 published September, 1831 (date at the bottom of the cover 

 page) ; it contains pages 13 to 28 and plates 3 to 5. No 3 was 

 published in May, 1832 (also dated at the bottom of the cover 

 page) ; it contains pages 29 to 40 and plates 6 to 8. The entire 

 work contains 72 pages and 17 colored plates. It would be of 

 interest to know just when pages 41 to 72 appeared : if in two 

 parts with the same interval between, the last part would have 

 appeared in 1833. The above makes the date of publication 

 for Cardita horealis 1832, vihWe Lyomia hyalina a.nd Lepton fahag- 

 ella would probably have the same date. — C. W. Johnson. 



The Conchological Museum. — Mr. Y. Hirase has recently 

 published another interesting album of his Conchological Mu- 

 seum. The 30 excellent illustrations show clearly the enor- 

 mous amount of work he has accomplished and its great diver- 

 sity in order to make the exhibit both popular and instructive. 

 Nowhere in the world are the economic and artistic applications 

 of the Mollusca so fully exhibited. 



With the Album is sent an " Application for aid." For those 

 in sympathy with his work and who wish to support his Mu- 

 seum, "The Supporting Club of the Hirase Conchological 

 Museum has been formed, the dues per year are : Supporting 

 member $2.50. Special supporting member $5.00. Life mem- 

 bership $30.00." 



