45 
No. 25. — Same as the above, ideally restored before erosion 
took place. 
No. 2G. — Model of the Yosemite Valley. 
No. 27. — Geological and relief model of Vesuvius and Monte 
Somma. 
No. 28. — Relief model of the Island of Palma. 
No. 2G. — Model showing irrigation by ditches and furrows 
on steeply sloping fields. 
No. 30. — Relief map of Mount Taylor, New Mexico, show- 
ing geological formations. Scale, i in. equals i mile. 
No. 31. — Relief model of Leadville and vicinity, dissected 
to show geological structure. Scale, i in. equals 8oo feet, or 
1 .9600. 
No. 32. — Same as above, undissected. 
No. 33. — Contour map, in relief, of Washoe mining region, 
50 foot contours. Scale, 1.20000. 
No. 34:. — Geological and relief map of part of Blair and 
Bedford Counties, Pennsylvania. 
No. 35. — Relief map of the Caucasus Mountains. 
No. 30. — Relief map of the high plateaus of Utah, colored 
to show the geological structure. Scale, 1.1,680,000. 
No. 37. — Relief map of the United States and the Gulf of 
Mexico, modeled on a section of a globe, 16^ feet in diameter. 
Horizontal scale, i in. equals 4 miles. Vertical scale, i in. equals 
8 miles. 
No. 38. — Geological relief map of Mount vRtna. 
No, 30 — Topographic wall map of a portion of the west of 
Scotland, hatchured. Scale, i in. equals i mile. 
No. 4:0. — Same as above, without hatchures. 
No. 4:1. — Bacon’s library wall map of London and suburbs. 
No. 4:2. — Geological wall map of England and Wales. Scale, 
I in. equals 15 miles. 
No. 4:3. — Hotchkiss’ geological wall map of Virginia and 
West Virginia. 
There are also shown stereogram, hypsometrical and geolo- 
gical maps of France, the United States, Mexico, Russia, South 
America, China, Cuba, Arabia, the Antilles, and other countries. 
A complete series of the topographical maps issued by the U. 
S. Geological Survey is deposited in the Departmental Library, 
and can be examined on application to the Curator. 
