REPORT OF ASSISTANT SECRETARY. 29 



of Lepidoptera by Dr. Dyar, and of Hymenoptera by Mr. Ashmead. 

 Mr. Caudell has published a synopsis of the hemipterous genus Sinea 

 and has identified considerable material in the group Orthoptera. The 

 total number of papers by members of the staff of the Division of 

 Insects issued during the year amounted to 78. 



The publications from the Division of Plants included five papers by 

 Mr. F. V. Coville, a monograph of the North American Umbellifene 

 \>y Mr. J. N. Rose, in conjunction with Prof. John Coulter, a descrip- 

 tion of a new Hdianthvs and a series of popular articles on the fami- 

 lies of flowering plants by Mr. C. L. Pollard, and a list of the ferns of 

 North America and eight other papers relating to them by Air. William 

 R. Maxon. Investigations in progress in the same division comprised 

 researches on the flora of Mexico by Mr. Rose, who has in preparation 

 an extensive work on that subject; studies of the violets by Mr. Pol- 

 lard, and studies of the ferns and their allies by Mr. Maxon. 



Under arrangements with specialists connected with other establish- 

 ments, the collections in several zoological groups were being worked 

 up for the National Museum, as follows: The sertularian and cam- 

 panularian hydroids by Prof. C. C. Nutting, of Iowa University, 

 whose monograph on the Plumularidse was recently issued as a special 

 bulletin; the holothurians by Prof. Charles L. Edwards, of Trinity 

 College, Hartford, Conn., and Prof . Hubert Lyman Clark, of Olivet 

 College, Michigan, the former having the Pedata, the latter the 

 Apoda; the parasitic copepod crustaceans by Prof. Charles B. Wilson, 

 of the State Normal School, Westfield, Mass.; the recent corals by 

 Mr. T. Wayland Vaughan, of the U. S. Geological Survey, and the 

 crayfishes by Prof. W. P. Hay, of Howard University, Washing- 

 ton, District of Columbia. 



In the Department of Geology the head curator, Dr. Merrill, inves- 

 tigated a series of nepheline-melilite rocks collected by Prof. C. H. 

 Hitchcock in Oahu, Hawaii, and completed a study of the stony 

 meteorite which fell in Felix, Alabama, in 1900. His publications 

 include a paper in conjunction with Dr. H. N. Stokes on a stony 

 meteorite which fell at Allegan, Michigan, in 1899, and a meteorite from 

 Mart, Texas, and a "Guide to the study of the collections in the section 

 of applied geology of the National Museum," printed in the Appendix 

 to the Annual Report for 1899. Mr. Tassin's researches related to the 

 analysis of a damourite from California and the dehydration of the 

 metallic hydrates, with special reference to the hydration of ferric and 

 ferrous sulphates and the dehydration of the resultant hydrates and 

 basic salts. He also completed a handbook on the gem collection of 

 the Museum. Mr. Schuchert has continued his preparation of a mon- 

 ograph on the American fossil starfishes and his studies relative to the 

 zones separating the Upper Silurian and Lower Devonian faunas in 

 America, and he also published a paper on the Ilelderbergian fossils 



