26 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1946 
elsewhere were transferred from the United States Geological Survey. 
Other fossil vertebrate additions included a mammoth tooth found in 
the mountains of Ecuador, 18 fossilized specimens of the fish Madllotus 
villosus from western Greenland, and a partial skull of the porpoise 
Eurhinodelphis from the Calvert formation in the Chesapeake Bay 
region. 
Engineering and industries—This department experienced a sub- 
normal year in the matter of new accessions, there being a drop from 
last year of about 50 percent in total number of specimens received. 
Among the year’s total of 1,480, however, there are several worthy 
of special mention. 
In engineering, a group of three Hollerith electromechanical tabu- 
lating machines and several high-speed precision gages were pre- 
sented by two interested corporations. The United States Maritime 
Commission transferred six models of ships representing classes of 
standard cargo and passenger vessels procured by the Commission 
during the war. There also came a scale model of the Baldwin- 
Westinghouse, geared, steam-turbine locomotive, first introduced in 
1945. In the section of aeronautics two groups of models were re- 
ceived—one a collection of 19 United States Navy types of the period 
following World War I, transferred by the Bureau of Aeronautics, 
and the other a collection of aircraft recognition models made by school 
children early in World War II, presented by the United States Office 
of Education. 
The Office of the Quartermaster General, Army Service Forces, and 
the Bureau of Supplies and Accounts, Navy Department, transferred 
141 specimens of the various fabrics used by the services in World 
War II, made according to standard Government specifications. 
Various manufacturers continued to supply examples of new fabrics 
to keep the textile exhibits up to date. Two early commercial sewing 
machines were received, dating from 1858 and 1874. A number of 
additions were made to the collections of early homecraft textiles, 
including coverlets, carpeting, and needlework. 
Specimens added to the collections representing the chemical and 
agricultural industries included examples of the applications of the 
newer plastics, and an 1885 Babcock milk tester. The most valuable 
accession in the division of medicine and public health was a specially 
designed exhibit illustrating the contributions of the mineral king- 
dom to materia medica. In the section of woods and wood technology 
an outstanding gift was a series of 100 British Honduras woods, from 
the Honduran conservator of forests. Other desirable wood specimens 
eame from the Philippine Islands and Peri. 
