REPORT OF ASSISTANT SECRETARY. 103 



Haven, Connecticut; and Mr. Frank Springer, of the Bureau of 

 Standards. Washington City. 



Portions of the collections of the Division of Geology have been 

 studied by Dr. Thomas L. Watson, of Denison University, Granville, 

 Ohio, in connection with the preparation of a report on the building 

 stone of North Carolina. 



Prof. H. F. Osborn has continued his work on the Titanotherium of 

 the Marsh collection. Dr. J. B. Hatcher spent several weeks in the 

 study of the Triceratops, and Mr. F. A. Lucas in the study of the 

 Stegosanr remains. 



In addition to the members of the U. S. Geological Survey, the fol- 

 lowing persons have studied the collections in Paleobotany: 



Dr. Arthur Hollick, assistant curator of botany in the New York 

 Botanical Gardens; the Rev. H. Herzer, of Marietta, Ohio; and Mr. 

 E. W. Berry, of Passaic, New Jersey. 



PRESENT CONDITION OF THE COLLECTIONS. 



The condition of the collections as a whole is quite satisfactory, 

 when everything is taken into consideration. In spite of numerous 

 interruptions, due to the work of the Louisiana Purchase Exposition, 

 the general work of cataloguing and numbering has been carried on, 

 and the records are being daily improved. 



The exhibition series is kept constantly alive through the insertion 

 of new material and the weeding out of that which is old and less 

 desirable. 



The section of vertebrate paleontology at present needs the largest 

 share of attention. This is in part due to the fact that the work of 

 preparation of vertebrate material is slow, laborious, and necessarily 

 expensive. The Claosaurus mount, which was reported as nearly 

 complete at the close of the last fiscal year, is now installed against 

 the south wall of the southeast court. 



The exhibition series has been increased by the addition of a fine 

 skull of a new genus of Ceratopsia and skulls of a Diplodocus and 

 Trachodon, the latter from Butler County, Montana; also a mounted 

 skeleton of Syornis casuarinus from New Zealand. 



It was hoped that we might be able to report fair progress in the 

 way of mounting a Triceratops, but numerous events, including the 

 resignation of a preparator, have conspired to prevent this. 



The collection of bryozoa, which has been already referred to, is 

 reported by Mr. Schuchert as occupying nearly 150 standard drawers 

 and comprising what is probably the most important collection of its 

 kind extant. This is indicated by the number of types and illustrated 

 specimens, of which there are some 620 different lots or species. 



The exhibition collections in all the divisions, with the exception of 

 that of vertebrate paleontology, are as full as available space will 

 permit. 



