518 THE AMERICAN NATURALIST. (VoL. XXXII. 
Provincetown, Woods Holl, Newport, Clinton,and Lawrence Experi- 
ment Station, and to other minor points. 
During the association week and the days immediately preceding, 
several affiliated societies will meet in Boston, including the Ameri- 
can Forestry Association, Geological Society of America, American 
Chemical Society, Society for the Promotion of Agricultural Science, 
Association of Economic Entomologists, Botanical Club of the 
Association, American Mathematical Society, Society for the Pro- 
motion of Engineering Education, American Folk-Lore Society, 
National Geographic Society, and Botanical Society of America. 
Many foreign scientists have been invited to take part in the 
meeting, and it is hoped that the war will not prevent them from 
being present. 
In his circular letter to members of the association, Professor 
Putnam, the president-elect, who has been permanent secretary for 
twenty-five years (and to whom all readers of the Naturalist are 
indebted as one of its founders, and the man who for several years 
carried the principal burden of its publication), makes the following 
statement: “There are in every community many men and women 
engaged in scientific work who should be invited to join the associa- 
tion, and there are many more qualified to become members who 
would find in the meetings of the association the very incentive they 
need to develop their love of scientific work. I earnestly appeal to 
every member to make known the objects and character of the asso- 
ciation, and to aid in securing such an increase of membership as 
shall make this fiftieth anniversary a marked event in the history of 
the association.” Certainly there are many readers of the Naturalist 
who will desire to join the association and take part in this most 
interesting and important meeting. ` 
Card Bibliographies. — The greatest advance made in recent 
years in the methods of recording the literature of natural history is 
the card catalogue issued by the Concilium Bibliographicum of 
Zürich, Switzerland, of which Dr. H. H. Field is the energetic 
director. The bureau supplies on cards the titles of the current 
literature of Zodlogy, Physiology, and Anatomy. The price for the 
cards is so small that every professional man can afford to purchase 
this invaluable aid to work, and no library consulted by professional 
men should be without it. The great advantage of the card system 
does not appear in the first year of its existence, since bibliographies 
are also to be had in book form; but when the literature of the last 
three, four, or twenty years is all arranged by subjects, and capable 
