1

The depletion of underground water-supplies

Year:
1934
Language:
english
File:
PDF, 499 KB
english, 1934
2

TRANSPORT CHANGE AND AGRICULTURAL SPECIALIZATION

Year:
1975
Language:
english
File:
PDF, 596 KB
english, 1975
4

Whither snow-surveys?

Year:
1941
Language:
english
File:
PDF, 235 KB
english, 1941
5

General discussion

Year:
1936
Language:
english
File:
PDF, 196 KB
english, 1936
8

Allocation of Water

Year:
1931
File:
PDF, 1.08 MB
1931