xviii Proceedings. 
in our list, as samples and in each was inserted a printed slip to 
indicate that an exchange of publications was desired. As a result 
of these efforts about one hundred and seventy societies have been 
added to our list of regular correspondents. In nearly every in¬ 
stance there has been correspondence definitely arranging the ex¬ 
change. In a few cases in which no communication has been 
received from the secretary of a society arranging the exchange, a 
generous shipment of publications has been interpreted to indicate 
that one is desired. With few exceptions the exchanges are of 
a most satisfactory character and will be the means of greatly 
strengthening the library. 
The list of these societies is given below arranged according 
to place of issue. A number of them were included in the list of 
Corresponding Societies, which was printed in the appendix of 
the eighth volume of the Transactions, an asterisk there indicat¬ 
ing that they were recent accessions to that list. 
Amherst . (Massachusetts) Agricultural Experiment Station, 
"Publications. 
Antwerp (Belgium) Societe Royale de Geographique. Bulletin. 
Ann Arbor (Michigan) Engineering Society of the University 
of Michigan. “ The Technic. ” 
Augsburg (Germany) Naturhistorischer Verein fur Schwaben u. 
Neuberg in Augsburg. Berichte. 
Austin (Texas) Geological Survey of Texas. Publications. 
- Texas Academy of Science. Transactions. 
Belfast (Ireland) Belfast Nat. History and Philosophical Society. 
Reports and Proceedings. 
Bergamo (Italy) Ateneo di Scienze, Letter e eArti in Bergamo. 
Atti. 
Berlin (Germany) Zeitschrift fur Instrumentenkunde. (Dr. A. 
Westphal, Redacteur, Joichimsthalerstr. 35). 
-Deutsche Geologische Gesellschaft. Zeitschrift. 
- Apotheker Zeitung (Organ des Deutschen Apotheker- 
Vereins). 
-Zeitschrift f. Praktische Geologie. (EditedJ by Dr. Max 
Krahmann, Wetzlar, Rheinprovinz). 
-Arbeiten aus dem Kaiserlichen Gesundheitsamte. 
