KEPOllT OF THE SECRETARY 85 



EXCHANGE OF PUBLICATIONS 



As usual, although some of the accessions for the year were pre- 

 sented by friends of the Smithsonian or were purchased, most of them 

 came in exchange for the publications of the Institution and its 

 branches. The packages received by mail numbered 21,808 and 

 through the International Exchange Service 2,368 — an increase of 

 1,920 over the previous year. Especially noteworthy were the send- 

 ings from the R. Deputazione di Storia Patria per le Provincie di 

 Romagna, Bologna; the Academia Romana, Bucharest; the Carlisle 

 Natural History Society, Carlisle; the Erdelyi Miizeum, Cluj ; the 

 Instituto Nazionale di Ottica, Firenze; the Naturforschende Gesell- 

 schaft zu Leipzig, Leipzig; the Societe Geologique de Belgique, 

 Liege ; the Isle of Wight Natural History and Archaeological Society, 

 Newport; the Nigerian Field Society, Ondo; the R. Laboratorio 

 Centrale di Idrobiologia, Rome; the Fauna och Flora, Stockholm; 

 the Botanisches Institut, Franz- Josef s Universitat, Szeged ; the Knox 

 Academy of Arts and Sciences, Thomaston; the Japanese Patho- 

 logical Society, Tokyo ; and the Instytut Popierania Nauki, Warsaw. 

 More detailed mention should be made of two sendings — one that of 

 41 monographs and bulletins, from the Oriental Institute, Chicago; 

 the other of 156 publications — some long since out of print — from the 

 Museum of Comparative Zoology, Cambridge. The last two send- 

 ings were obtained by the library under a special excliange arrange- 

 ment, the latter by returning to Harvard some of the university's 

 publications that had found their way into the Smithsonian dupli- 

 cate collection. These many unusual sendings added materially to 

 the resources of the Smithsonian deposit and the library of the 

 National Museum. 



Among the publications received were 7,021 dissertations from the 

 Academy of Freiberg, the Agricultural School of Bonn-Poppelsdorf, 

 the universities of Basel, Berlin, Bern, Bonn, Breslau, Budapest, 

 Erlangen, Freiburg, Giessen, Greifswald, Halle, Heidelberg, Jena, 

 Johns Hopkins, Kiel, Koln, Leipzig, Lund, Marburg, Neuchatel, 

 Pennsylvania, Rostock, Tubingen, Utrecht, Wiirzburg, and Ziirich, 

 and the technical schools of Berlin, Braunschweig, Delft, Dresden, 

 Karlsruhe, and Ziirich. 



In connection with the exchange and other activities of the library 

 the staff wrote 2,651 letters, or 516 more than the year before, arranged 

 for 300 new exchanges, or 36 more than in 1935, and obtained, in 

 response to 584 request cards, 6,422 volumes and parts needed in the 

 libraries of the Institution. It should be pointed out, however, that, 

 thanks to the recent organization of the Smithsonian duplicates, many 

 of these publications were found in this collection — a fact that was 

 particularly true of the large number sent to the Smithsonian deposit 



