4 ANNUAL REPORT OF THE 



more striking being those of two species of elephant and a very 

 large chelonian. 



Mr. E. R. Dunn, owing to the generosity of Dr. Thomas Bar- 

 bour, spent several weeks in field-work in Costa Rica. He secured 

 a large and interesting series of reptiles and amphibians, and several 

 specimens of two species of Peripatus. 



During June and July, Dr. R. V. Chamberlin resumed his field- 

 work in Utah, and secured a large number of arachnids and myrio- 

 pods ; these, with those taken in former years, make the Museum's 

 collections of Arachnida and Myriopoda from western North 

 America the largest extant. 



The exploration of the Gulf of Maine which the U. S. Bureau of 

 Fisheries and the Museum have carried on in cooperation for the 

 past ten years, under the direction of Dr. H. B. Bigelow, was con- 

 tinued, and during December, 1920, January and March, 1921, 

 the U. S. Fisheries Steamer Halcyon cruised in the northern part 

 of the Gulf of Maine. With this year's observations, data has been 

 obtained from cruises undertaken during every month of the year, 

 and Dr. Bigelow is preparing a detailed summary of the results. 

 As in previous years, Dr. Bigelow has also had the direction of the 

 scientific results obtained by the U. S. Coast Guard Steamer 

 Seneca, during the ice patrol of the Grand Banks. 



Prof. P. E. Raymond's field-work in Quebec, New York, and 

 Maine, was unusually successful. Large and interesting collections 

 were made; some of the fossils obtained were unequalled in quality, 

 others were from localities not usually accessible ; an old Devonian 

 locality on the River St. Andre, Quebec, was rediscovered, and a 

 large collection of corals secured. 



Dr. Thomas Barbour's generosity to the Museum, apart from his 

 unconventional gifts to the collections under his charge, has been 

 very great; one of the largest and most valuable of his gifts this 

 year is the A. P. Morse collection of insects, a collection of more 

 than 50,000 specimens, with numerous types, chiefly among the 

 Orthoptera. To the collections of mammals and birds Dr. Bar- 

 bour has given, as in previous years, many species new to the col- 

 lections and especially selected for their rarity, to complete series, 

 or to further some special need; the beautiful series of nearly 

 1,800 species of Japanese shells (Hirase collection), added to two 



