59 
The most available source for information on all these publications, 
and offering assistance in the selection of types from each group, is a 
little manual entitled “The Use of Governmental Maps in Schools,” by 
Messrs. Davis, King & Collie, and published by Henry Holt & Company, 
New York. 
For information concerning foreign maps, the teacher is advised to 
consult an article by Prof. W. M. Davis on “Large Scale Maps for Geo- 
graphic Illustrations,” published in the Journal of Geology. A reprint of 
this article may possibly be obtained by addressing Prof. T. C. Chamber- 
lain, Chicago University. 
Models.—One of the most novel and still most effective means in the 
teaching of geography as well as geology, is supplied by models illustrat- 
ing the topographic form and the rock structure upon which the topog- 
raphy is made. 
Models are of two kinds: One may represent the actual topography 
of a surveyed section of country and the other may be an idealized land 
form, depicting the essential and expectable features. The latter may be 
called “types of land form.” Of all the materials mentioned, as forming 
equipment for a geographical laboratory, models may be regarded as of 
special value. It is indeed unfortunate that the cost of models in general 
is so excessive that a large number of the secondary schools may not be 
able to purchase the larger and most expensive illustrations of land forms, 
but still there are many that come within the reach of schools with but 
meagre appropriations. 
During the past year the Department of Geology and Geography, Indi- 
ana University, has given a course in physiographic geology. Practice in 
the construction of relief maps may be taken as part of the laboratory 
work required in the course. It is of course evident that a knowledge of 
the various methods of making relief maps is of great advantage to the 
teacher who may be called upon to accumulate material for a geographical 
laboratory. Asa result of this course, the following relief maps have been 
constructed, the data having been obtained from the topographic and the 
geologic atlas sheets, published by the United States Geological Survey: 
Chattanooga and Sewanee Sheets, Tennessee, horizontal scale, 1”=1 mile; 
vertical scale, 1”=1,600 feet. 
Harper’s Ferry Sheet, Baltimore, Md., horizontal scale, 1”=1 mile; vertical 
scale, 1”=1,600 feet. 
