106 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1933 



R. A. Bartlett has made to Greenland in the past several years is 

 rapidly approaching completion, while his descriptions of two new 

 species of isopod crustaceans from California appeared in print during 

 the year. Dr. J. A. Cushman, honorary collaborator, made progress 

 on further parts of his monographs of the tropical Pacific foraminifera. 

 In addition to handling a large volume of paleontological material, 

 he identified various lots of recent foraminifera. Dr. W. H. Longley, 

 collaborator, spent nearly 4 months abroad, chiefly in London, Paris, 

 and Berlin, in part in connection with his studies on evolution. 



Most of the time of the curator of mollusks. Dr. Paul Bartsch, 

 was required in planning, equipping, and directing the Jolmson- 

 Smithsonian Deep-Sea Expedition and in caring for the material 

 obtained. The identification of material sent in for report occupied 

 the time of the rest of the staff not otherwise taken up by curatorial 

 duties. 



The curator of echinoderms, Austin H. Clark, continued work on 

 parts 4 and 5 of his monograph of the existing crinoids, with a view 

 to their completion in the near future, and studied and indentified 

 a part of the material collected by the Johnson-Smithsonian Deep-Sea 

 Expedition. 



In the division of plants Dr. W. R. Maxon, associate curator, 

 carried on studies of tropical American ferns; E. P. Killip, associate 

 curator, continued work on a monograph of the American species of 

 Passifloraceae, besides studies of certain genera of Urticaceae and 

 Boraginaceae; E. C. Leonard, assistant curator, studied West Indian 

 flora; C. V. Morton, aide, investigated several tropical American 

 famihes of phanerogams, especially the Solanaceae; and E. H. Walker, 

 aide, practically finished a revision of Chinese Myrsinaceae, besides 

 carrying on bibliographic work. Here may be mentioned also the 

 study by Mr. Killip of a series of about 3,600 duphcate specimens of 

 the historic Mutis Herbarium received from the Jardin Botanico, 

 Madrid, through his active interest. The Mutis collection, made in 

 Colombia between 1760 and 1808, contains specimens upon which 

 many early species were proposed. In return for the valuable dupli- 

 cates sent to this Institution, Mr. Ivillip has undertaken to identify 

 the specimens, and to date has reported upon about 2,000 of the 

 3,600 received. 



DISTRIBUTION AND EXCHANGE OF SPECIMENS 



Duplicate specimens distributed to museums, high schools, colleges, 

 and similar institutions aggregated 1,351 specimens, and 43,578 

 exchanges were sent out, of which 1,073 were zoological specimens. 

 The 42,505 plants distributed went to 104 institutions and corre- 

 spondents, of wliich 46 were in the United States, and 58 in 22 countries 

 abroad. 



