70 EEPOET OF NATIONAL MUSEUM, 1913. 



Finally, in a canvas boat, built for the purpose, he made his way down 

 to the mouth of the river, a distance of about 300 miles. Mr. Amory 

 obtamed about 60 mammal skins, including a series of caribou, be- 

 sides many bones of fossil mammals of much interest, which are 

 referred to elsewhere. 



Mr. A. C. Bent, of Taunton, Mass., spent the months of June, July 

 and August, 1912, in Newfoundland and Labrador for the purpose 

 of gathering further material and information for the work on the 

 life histories of North American birds which he has volimteered to 

 contmue. He visited a wide range of territory, in which he had 

 excellent opportmiities for making observations, especially on the 

 breedmg places and habits of the birds of the region. The trip proved 

 very successful, important data and a number of interesting photo- 

 graphs bemg secured. Some specimens of birds were also collected. 



Dr. Paul Bartsch, assistant curator of mollusks, was enabled to 

 make a second trip to the Florida Keys and the Dry Tortugas, 

 through the courtesy of Dr. Alfred G. Mayer, director of the Marine 

 Biological Laboratory of the Carnegie Institution of Washington, and 

 as a guest of that institution on board the steamer Anton Dohrn. 

 He was absent about three weeks, from April 20, 1913, during which 

 he visited the several places where living specimens of the two races 

 of the genus Cerion of land shells from the Bahama Islands were 

 planted the j^revious year with the object of determining the effect 

 of change of environment. Notes were made on the condition of 

 the specimens, and collections of various groups of marme inver- 

 tebrates were obtained for the Museum. Dr. T. Wayland Vaughan, 

 of the Geological Survey and custodian of madreporarian corals in 

 the Museum, also spent a short time at the Carnegie laboratory on the 

 Dry Tortugas, studying the growth of stony corals and incidentally 

 collecting specimens of coral for the Museum. Mr. Jolin B. Hender- 

 son, a regent of the Smithsonian Institution, conducted further explo- 

 rations among the Florida Keys with his yacht Eolis during the spring 

 of 1913, and from the collections made he generously contributed an 

 excellent series of marine invertebrates accompanied by color notes 

 on some of the more striking forms. Dr. J. W. Fewkes, of the Bureau 

 of American Etlinology, during archeological explorations in the 

 West Indies, obtained for the Museum a small collection of sponges 

 at Grand Cayman Island, a dependency under Jamaica. 



Through the courtesy of Dr. J. N. Kose and Dr. N. L. Britton, Mr. 

 Paul G. Russell, of the division of plants, was permitted to accompany 

 a joint expedition of the Carnegie Institution of Washington and 

 the New York Botanical Garden to the West Indies for the purpose 

 of obtaming plants for the National Museum. The special object of 

 the trip was the investigation of the cactus flora, but about 7,000 

 specimens of other groups were also secured, chiefly in the Lesser 



