oe REPORT OF NATIONAL MUSEUM, 1906. 
In the section of invertebrate paleontology nearly 40,000 speci- 
mens, representing 3,000 species and filling 172 standard drawers, 
were labeled, cataloged, and systematically arranged. This material 
belonged mainly to the Rominger collection of Paleozoic fossils from 
the Mississippi Valley, the work upon which was completed, and to 
the Ulrich collection, which will require at least another year’s atten- 
tion. Types of several hundred species have been added to the section 
since the publication of the type catalog in 1905. 
Seven hundred specimens were identified and cataloged in the sec- 
tion of vertebrate paleontology. About 200 specimens of the teeth 
of Mesozoic mammals were mounted on corks inserted in glass vials 
for their better preservation, and enlarged pencil drawings and wax 
models of many minute forms were prepared. Much time was spent 
in locating and identifying the type material of the earlier specialists 
in this subject, such as Leidy, Cope, and Marsh. Excellent progress 
was made by Mr. Gidley in classifying the reserve collection of fossil 
mammals, the trays containing them being grouped by geological hor- 
izons. The same may be said of the work of Mr. Gilmore upon the 
reptilian forms. Some 636 trays of the Marsh collection, stored at 
the Emery building, have been roughly classified and labeled, and sey- 
eral hundred specimens of small reptiles have been unwrapped in order 
to make them accessible for study. In the matter of preparing large 
specimens for exhibition, which requires much time and skill, the fol- 
lowing were worked out and mounted: A complete skeleton of J/ery- 
cotdodon gracilis, a skull of Triceratops calicornis, a composite skele- 
ton of a large Dinornis, and a cave bear. The skull of a Miocene 
rhinoceros from the Marsh collection was prepared for mounting, and 
the skeleton of a mastodon, exhibited at the Louisiana Purchase Expo- 
sition, was renovated. All of the type and figured specimens in this 
section have been assembled, properly marked, and labeled. 
In paleobotany the general routine work in connection with the 
collections occupied the entire time of Doctor Peale. 
THE EXHIBITION COLLECTIONS. 
Owing to lack of space it has not yet been possible to organize an 
exhibition series illustrative of the subject of physical anthropology, 
although there is much material on hand suitable for that purpose. 
A number of plaster busts of American Indians comprizes the entire 
display at present. 
Many changes and improvements were made in the exhibition col- 
lections of ethnology. All of the wall cases on the floor of the west 
hall were rearranged, and the Siamese collection obtained at the 
Louisiana Purchase Exposition was newly installed. The latter con- 
sists of art objects and selections from the textile and agricultural 
exhibits. The Roumanian peasant group, for which the costumes 
