38 
FOURTEENTH REPORT. 
compared to the uses made of the resultant maps. The following are 
some of the uses which are made of topographic maps: 
1. As preliminary maps for planning extensive irrigation and drain- 
age projects, showing areas of catchment for water supply, sites for 
reservoirs, routes of canals, etc. 
2. For laying out highways, electric roads, railroad, aqueducts, 
and sewage systems, thus saving the cost of preliminary surveys. 
3. For improving rivers and smaller waterways. 
4. In determining and classifying water resources, both surface 
and underground. 
5. In the problem of the most feasible and economical selection of 
water supply for cities. 
<>. In making plans for the disposal of city sewage, garbage, etc. 
7. In determining routes, mileage, location of road-building material, 
and topography in country traversed by public highways. 
8. Tn selecting the best routes for automobiling tours and intercity 
runs. 
0. As guide maps for prospectors and others in traveling through 
little known regions. 
10. As bases for the compilation of maps showing the extent and 
character of forest- and grazing lands. 
11. In classifying lands and in plotting the distribution and nature 
of the soils. 
12. In compiling maps in connection with the survey and sale of 
lands. 
13. In making investigations for the improvement of the plant and 
animal industries, and in a comprehensive study of physical and biologi- 
cal conditions in connection with the stocking of interior waters with 
good fishes and the locating of fish culture stations. 
14. In locating and mapping the boundaries of life and crop zones, 
and in mapping the geographic distribution of plants and animals. 
15. In plotting the distribution and spread of injurious insects and 
germs. 
10. As a bnse map for the plotting of information relating to the 
geology and mineral resources of the country. 
17. In maneuvers of the national guard, in the development of 
military problems and in the selection of routes for road marches or 
strategical movements of the troops, particularly of artillery or cavalry. 
IS. In connection with questions relating to state, county, and town 
boundaries. 
19. As a means of promoting an exact knowledge of the country and 
serving teachers and pupils in geographic studies. 
20. As base maps for the graphic representation of all facts relating 
to population, industries, and products or other statistical information. 
21. In connection with legislation involving the granting of charters, 
rights, etc., when a physical knowledge of the country may be desirable 
or necessary. 
In comparison with the neighboring State of Ohio, the amounts 
allotted to co-operation heretofore seem insignificant indeed, and the 
results of the liberal policy in Ohio are apparent when one realizes that 
the entire area of the State will be covered by modern topographic maps 
