tions of mosses were rearranged in families according to the system 

 of classification of Engler and Prantl. The packets, required in 

 great numbers, were folded by Mrs. Catharine M. Richards of 

 Chicago. About 3,500 duplicate specimens of cryptogams were 

 prepared and distributed in exchanges to public and private herbaria. 



During 1943 more than 16,000 prints with herbarium labels from 

 the negatives of type specimens obtained in European herbaria by 

 Mr. Macbride were supplied at cost or in exchange for similar photo- 

 graphs to botanists in North and South America. 



A complete set of prints of the type photographs from Europe 

 are on file in the phanerogamic herbarium and present no special 

 problem. The Department's files of other botanical photographs 

 have required special attention during the year. In the course of 

 time these have grown so extensively that the prevailing system 

 of keeping track of them geographically and chronologically, 

 arranged in photographic albums, has now become practically 

 unmanageable, even in the hands of the one or two members of the 

 staff with special personal knowledge of the photographs. A com- 

 pletely new filing system has therefore been initiated which, when 

 finished and kept up to date, should enable any member of the 

 botanical staff to find prints and negative numbers of any desired 

 items on hand. This should facilitate greatly the filling of requests 

 for photographs, now often a time consuming and costly operation. 



Special storage cases have also been built for the filing and pres- 

 ervation of the Department's large collections of negatives, includ- 

 ing the Harper photographs of fungi and other cryptogams, the 

 collection of negatives of types from European herbaria, and the 

 many photographs made on botanical expeditions. 



Geology . . . 



During the year 162 entries were made in the Department's 

 twenty-nine record books. All specimens received during the year 

 were catalogued except such vertebrate fossils collected by expedi- 

 tions as have not yet been sufficiently prepared for cataloguing. 

 All the classified card catalogues which index the gem, meteorite, 

 mineral, rock, photograph, map and vertebrate fossil collections have 

 been kept up to date. A new classified card catalogue of physical 

 geology was started and 3,130 cards typed for it. In all, 3,722 

 additions were made to these catalogues. One hundred seventy-six 

 photographs were labeled, catalogued and mounted in the albums. 

 Copy for eighty-four labels was prepared and sent to the Division 

 of Printing, and the labels were installed. 



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