REPORT OF NATIONAL MUSEUM, 1914. 59 
time to complete, accessions of importance may soon be expected to 
reach the Museum with some regularity. 
It is gratifying to note that the public-spiritedness of mining and 
metallurgical interests has relieved the Museum largely of the first 
cost of the exhibits under way. This is especially significant since a 
reasonably complete representation of all the industries in mind will 
involve a very large expenditure, and outside contributions are 
essential to its fulfillment. Starting with the mineral resources 
economically most important, such as iron, clay, gold, silver, copper, 
etc., and ranging thence downward through the minor ones of bis- 
muth, cadmium, lithium, etc., at the other extreme, there are upward 
of 50 bases for operations in mineral technology. The minor ones 
may be provided for readily, but the important ones, as for example, 
iron, in all their complexity of phase, offer innumerable problems for 
solution; and with the resources at hand patience must be shown in 
contemplating the building up of what will ultimately be one of the 
most important and unique museum demonstrations in the world. 
The exhibition space assigned to the division comprises the west 
hall, the south west and west south ranges, and the southwest court, 
all of which are adjoining and intercommunicating. One only of 
these halls had been opened to the public by the close of the year. 
This was the southwest court which presents a résumé of the occur- 
rence and mining of coal, reasonably complete except as to detail. 
The chief units in the coal series have been briefly described in the 
body of this report, and include models of the Consolidation Coal 
Co.’s colliery at Fairmont, W. Va.; the Pittsburgh Coal Co.’s colliery 
at Willock, Pa.; the Western Coal & Mining Co’s colliery at Jenny 
Lind, Ark.; the Takashima coal field in Japan; a by-product coke 
plant according to the Koppers system; non-by-product ovens of bee- 
hive and rectangular types; and a bench of gas retorts. Isolated 
individual models in other halls, belonging to other series being 
assembled, are of the Fayal iron mine at Eveleth, Minn.; an old- 
style blast furnace; a pot glass furnace, and a tank glass furnace. 
Exhibits in an advanced state of construction comprise sundry 
detail models for addition to the coal series; detail modeling for the 
series illustrating glass manufacture; complete demonstrations of the 
natural graphite industry, the artificial graphite industry, and the 
abrasives industries, natural and artificial; the occurrence, mining, 
metallurgy, and industrial adaptability of zinc; the manufacture of 
lead pigments and alloys; the mining, technology, and uses of as- 
phalt; the occurrence, mining, and technology of gypsum; the mica 
industry, and the asbestos industry. Less advanced, but nevertheless 
definitely under consideration, were complete series representing the 
technology of lime, refractories, alkalies, and ornamental tile. 
