52 REPORT OF THE SECRETARY. 



Investigations. — As in previous years, the natural history material 

 collected by the Smithsonian Institution has been freely distributed 

 to special investigators for examination and description, among vv'hom 

 are the following: 



Thomas Bland, New York ; univalve shells from Mexico ard Bogota. 

 D. E. R. Beadle, Philadelphia ; shells of various portions of the globe. 

 Dr. T. M. Brewer, Boston ; nests and eggs of North American birds, 

 to be included in Part 2, North American Oology. Dr. P. P. Carpen- 

 ter, Montreal ; mounted chitons and British shells, shells of Puget 

 Sound, Santa Barbara, California, and Nicaragua. John Cassin, 

 Philadelphia ; all the Ideridce, Bhainphastidce, and Trogonidce of the 

 Smithsonian collection, for monographing; birds collected in Ecuador, 

 and on the Upper Amazon. Professor E. D. Cope, Philadelphia ; rep- 

 tiles from Mexico, New Grenada, Navassa, Vancouver island, Sitka, 

 <fec. ; entire Smithsonian collection of salamanders for a monograph ; 

 recent and fossil bones of cetaceans and saurians. Dr. Elliot Coues, 

 U. S. A., Columbia, S. C; entire Smithsonian collection of alcidce 

 for a monograph. Thomas Davidson, London ; types of fossils for 

 comparison. W. H. Edwards, Newburgh, N. Y. ; lepidoptera of 

 Mexico, Colombia, and western North America. D. G. Elliot, New 

 York ; North American birds to be figured in his work on Birds of 

 America. Professor T. Egleston, New York ; specimens of minerals 

 from various parts of the world. John Gould, London ; types of new 

 and rare species of humming birds, described by Mr. Lawrence, from 

 the collection of the Smithsonian Listitution. George N. Lawrence, 

 New York ; various collections of humming birds, and general col- 

 lections of birds of Costa Rica, Bogota, and western Mexico. Isaac 

 Lea, Philadelphia; unionidas from various portions of North America. 

 Dr. Joseph Leidy, Philadelphia ; fossil remains of vertebrata from 

 Colorado, &c. F. B. Meek, Washington ; invertebrate fossils, from 

 Nebraska, &c. Lewis H. Morgan, New York ; skulls of American 

 and European beaver. Baron R. Ostensacken ; diptera of Mexico, 

 &c., insect galls from Plover bay, Northeast Siberia. Tryon Reak- 

 irt, Philadelphia; lepidoptera of Colombia. Dr, I. T. Rothrock; 

 plants collected in Russian America. S.H. Scudder, Boston ; orthop- 

 tera of Mexico and other parts of North America. Dr. W. Stimpsou, 

 Chicago ; Riarine invertebrata collected by Ferd. Bischoff, "W. H. 

 Dall and others, on the northwest coast of NorllrXmerica. Dr. P. 

 L, Sclater, London ; collection of birds made about Conelutas, Buenos 

 Ayres, by W. H. Hudson. Dr. John Torrey, New York ; collections 

 of plants of various parts of the world. P. R. Uhler, Baltimore ; 

 hemiptera of Mexico and America generally. Dr. H. C. Wood, jr., 



