42 FIELD MUSEUM OF NATURAL HISTORY 
A dissected form of this map, useful for the study of folding 
and faulting, can be seen on application to the Curator. 
Relief map of the Ice Spring craters, a group of extinct vol- 
canoes, near Fillmore, Utah, illustrating the successive forma- 
tion and partial abolition of craters and lava fields. Horizontal 
and vertical scale, i : looo. 
Relief map of Mount Taylor, New Mexico, showing geologi- 
cal formations. Scale, i inch equals i mile. 
Relief map of the Uinta and Wasatch mountains, colored to 
show geological formations. Horizontal scale, i inch equals 4 
miles, or i : 253,440. Vertical scale, i : 126,720. 
Relief map of the high plateaus of Utah, colored to show 
geological structure. Scale, i : 1,680,000. 
Two relief maps of Mount Shasta, one showing topographi- 
cal, the other, geological features. 
Relief maps of the Chattanooga District, one showing topo- 
graphical, the other geological features. Note how, by folding 
and erosion, the formations originally overlying one another 
have been exposed so as to succeed one another laterally. 
Relief map of Massachusetts, from maps of the United States 
Geological Survey and the Topographic Survey of Massachu- 
setts. Horizontal scale, i inch equals 4 miles. Vertical scale 
I inch equal 4000 feet. 
Relief map of Connecticut from maps of the United States 
Geological Survey and the Topographic Survey of Connecticut. 
Relief map of the Caucasus mountains. 
Relief map of the world on Mercator’s Projection. Hori- 
zontal scale, 630 miles to i inch. Vertical scale, 78 times the 
horizontal. 
Relief map of Palestine. Horizontal scale, i inch equals 
6 miles. Vertical scale, exaggerated 5 times. 
A number of large geological photographs are exhibited on a 
stand in the hall. 
There is also exhibited in this hall a model on a large scale 
of the Chandler iron mine, Ely, Minnesota. It illustrates how 
the underground workings of a large mine are carried on. 
Two shafts (shown at the rear of the model) run from the 
surface downward. At levels 60 feet apart, horizontal gal- 
leries run from the shaft and connect at intervals with other 
passages. Figures of miners at work may be seen by look- 
ing through these crossways from the ends of the model. 
