42 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1916. 



of petrological material, mainly rocks illustrating the geology and 

 ore deposits of several districts and localities, described in recent 

 papers. 



Of fossil invertebrates the Geological Survey made extensive con- 

 tributions from the Tertiary of the Atlantic and Gulf coastal plain, 

 the Cretaceous of New Mexico, and other formations and localities. 

 Other important accessions vrere several thousand specimens of 

 bryozoa and ostracoda from various parts of the world, a collection 

 of Upper Cretaceous forms of special interest as containing types 

 described long ago by Prof, T. A. Conrad, insects from the Floris- 

 sant beds of Colorado, and types of new species of crabs. 



Most prominent of the additions in vertebrate paleontology was a 

 nearly complete skeleton of a large mastodon found near Winamac, 

 Ind., which has already been mounted and placed in the exhibition 

 hall. From the Koren expedition to the Kolyma River region of 

 northeastern Siberia were receiv.ed nearly 200 specimens, of which 

 the most valuable is a fine skull of the Siberian mammoth, the only 

 one of this northern form now in any American museum. Two col- 

 lections of fossil plants, recently described, including the type and 

 figured specimens, were transferred by the Geological Survey. One 

 was from the San Juan Basin, N. Mex., the other from the Fox Hills 

 formation, Colo. 



Textiles. — In the division of textiles excellent progress was made 

 in the acquisition and installation of new exhibits. Probably the 

 most important was an extensive series of specimens, and of models, 

 sections, and photographs of machinery from the American Thread 

 Co., showing the manufacture of cotton thread in all its details. 

 Other noteworthy accessions were two additional Jacquard machines 

 for decorating textiles; further illustrations of the operation and 

 work of the embroidery automats, of the manufacture of silk fabrics, 

 and of the designing, w^eaving, and printing of silk upholstery and 

 drapery materials; examples of Javanese batik work on cotton and 

 silk, and of various patterns of moire silks; a demonstration of the 

 successive stages in the production of painted cut velvet, called 

 " Yuzen Birodo " by the Japanese ; and samples of silk skein-dyeing 

 and silk piece-dyeing and printing. 



The Japanese Commission to the Panama-Pacific International 

 Exposition contributed 100 commercial fabrics, including many Idnds 

 not produced in this country. The representation of American up- 

 holstery and drapery fabrics and allied textiles of various materials 

 and character of decoration was greatly increased and improved, and 

 manufacturers continued to keep the collection supplied with novel- 

 ties and new types and designs of dress fabrics as soon as they were 

 brought out. Numerous excellent examples of the handicraft work 

 done in the schools of the Philippine Islands were also obtained. 



