86 REPOET OF NATIONAL MUSEUM, 1919. 



of the mollusks collected by the Bureau of Fisheries steamer Alba- 

 tross during 1902 in the deeper waters around the Hawaiian Islands. 

 Mr. John B. Henderson, a regent of the Smithsonian Institution, has 

 continued his studies of the east American mollusks. He has also 

 begun a monograph of the American tectibranchs and in addition has 

 cooperated with the curator in a report on the mollusk fauna of the 

 Beaufort, North Carolina, region for the Bureau of Fisheries. The 

 text of his monograph on the Western Atlantic Scaphopoda has been 

 comi:)leted for some time, its publication awaiting the making of a 

 large number of illustrations. Dr. Mary J. Eathbun, associate in 

 zoology, continued her study of the brachyuran crabs of the Amer- 

 ican Museum Congo expedition, 1910-1916, referred to in last year's 

 report. She has also identified the brachyurans collected by the Bar- 

 bados-Antigua expedition of the State University of Iowa. 



The lectures delivered by the curator at Camp Lee and Camp 

 Meade are referred to here as " war work," and frequent advice to 

 correspondents how to destroy noxious pests, particularly slugs 

 which have made serious inroads upon the war gardens in cities 

 may be similarly classified. Mr. Austin H. Clark, assistant curator, 

 has completed a second part of his Monograph of the Existing 

 Crinoids, the first part of which was published by the Museum in 

 1915 as Bulletin 82. Work on a third part of this monograph is 

 well under way. His investigations in the larval crinoids of the 

 Gauss expedition have been completed, as well as his report on the 

 ophiurans and crinoids of the Barbados- Antigua expedition of the 

 State Universtiy of Iowa. He has continued his investigations on 

 the crinoids of the Ingolf expedition. Mr. Waldo L. Schmitt, as- 

 sistant curator, has begun a report on the Macrura and Anomura 

 of the American Museum Congo expedition, 1910-1916, and another 

 on the Macrura and Anomura of the State University of Iowa Bar- 

 bados-Antigua expedition, 1918. He also spent three months, from 

 August to October, 1918, in California, on detail to the United States 

 Bureau of Fisheries, in connection with his studies upon the life 

 history of the California spiny lobster. He has also continued his 

 studies upon the hermit crabs of Japan and the American East Coast 

 Macrura. His report on the Schizopods of the Canadian Arctic 

 expedition is going through press. Mr. William B. Marshall, assist- 

 ant curator, has devoted the greater part of his time to routine work 

 incidental to the distribution of old and receipt of new molluskan 

 collections, including identifications of large gi'oups of mollusks 

 submitted by other institutions and individuals for examination. 

 Such time as could be spared for research work was devoted to 

 the study of the pearly fresh-water mussels which has resulted in 

 the completion of two papex's, He also continued his study of the 



