THE NAUTILUS. 83 



the U. S. to be deposited in the Academy of Natural Sciences, Phila- 

 delphia. I am very much pleased with the scheme and hope it will 

 be successful. From time to time as opportunity offers, I will make 

 up a box and send to you or direct to the Academy as you may 

 direct. I will send West Coast shells. 



Very truly, 



G. W. Lichtenthaler. 



Some of the Philadelphia members of the Association have al- 

 ready responded to the suggestion and have contributed some very 

 handsome specimens as a nucleus for the collection. The full list of 

 donations thus far made is noted below and from month to month 

 the JSTautilus will publish a list of additions made between the dates 

 of issue. 



It would be well to bear in mind the following rules : 



1. None but members of the Association will be allowed to con- 

 tribute to the collection. 



2. None but the finest kind of specimens will be accepted. 



3. The specimens must be from known, exact localities within the 

 limits of the United States. 



4. The donation of shells is ])urely a voluntary matter on the part 

 of members. 



5. The names and addresses of the donoi's will be written on the 

 cards upon which the shells will be mounted. 



The donations must be voluntary. 



It must be understood that the matter of contributing specimens 

 to the collection is purely a voluntary one on the part of members. 

 There is no obligation on their part to contribute, or even to take an 

 interest in the matter. Some of them may not care to donate speci- 

 mens to be placed in the Philadelphia Academy, but may prefer to 

 help along collections in their own localities. The collection will be 

 labelled " Special Exhibit of United States Mollusca, contributed by 

 members of the American Association of Conchologists," but the 

 Association, as an organized body will not stand sponsor for the Ex- 

 hibit. It could not do so without a meeting and a favorable vote by 

 the members. 



This will not prevent, however, members, who desire to do so, 

 from contributing to the success of the project, and the Philadelphia 

 members would be glad to have the help of all Avho look kindly up- 

 on the project. 



