142 THE NAUTILUS. 
Shells, he will write to Mr. Johnson, ete., etc. In this way, with a 
widely extended list of members, no one may be at a loss to find a 
solution to problems, which distance from Museums or difficulty in 
consulting books, ordinarily puts it out of his power to obtain. By 
joining the Association, a member is received into a brotherhood of 
scientists, ready and willing to help him in his studies, Joining 
forces in this way, must eventually be of benefit to Conchological 
Science. 
Below will be found the names and addresses of the members of 
the Association, together with the list of subjects chosen. An 
invitation is extended to all American students and collectors to 
enroll themselves in the Association. All applications for member- 
ship should be made to Mr. Charles W. Johnson, Secretary, Wagner 
Institute, Philadelphia. 
List oF MEMBERS. 
John H. Campbell, President, 740 Sansom Street, Philadelphia. 
Cypraeidae. 
Charles W. Johnson, Secretary, Wagner Institute, Philadelphia. 
South American Mollusca. 
Charles T. Simpson, Smithsonian Institute, Washington, D. C. 
Geographical Distribution and Nomenclature. 
H. A. Pilsbry, Academy Natural Sciences, Philadelphia. Land 
and Fresh Water Shells generally. 
Rev. A. Dean, Muncy, Pa. Fuside. 
John Ford, 2602 Brown Street, Philadelphia. Olividae. 
Uselma C. Smith, 707 Walnut Street, Philadelphia. Conidae. 
John Shallcross, 627 Walnut Street, Philadelphia. Valutidae. 
F.C. Baker. Academy Natural Sciences, Philadelphia. Muri- 
cidae. 
Wm. J. McGinty, 2103 Vine Street, Philadelphia. Marginellidae. 
Theodore G. Brinton, 755 Corinthian Avenue, Philadelphia. 
Mitridae. 
Joseph Willcox, 1810 Chestnut Street, Philadelphia. Genus 
Fulgur. 
S. Raymond Roberts, Glen Ridge, N. J. Cypraeidae. 
[Thirteen new members (including Mr. Wm. H. Dall) have been 
added since printing the above lists. Their names will appear in next 
number of the Nautilus—J. H. C.] 
