Vill CONTENTS 
Consequences of Using Arid Lands Beyond Their Capabilities 
Cyrit LuKER 226 
Possibilities of Increasing and Maintaining Production from 
Grass and Forest Lands without Accelerating Erosion 
RaymonpD PRICE 233 
Land Reclamation and Soil Conservation in Indian America 
PEDRO ARMILLAS 245 
Better Use of Present Resources: Concluding Remarks 
KANWAR SAIN 250 
PROSPE@IS: FOR ADDIMIONAL, WATERS SOURCES 
Demineralization of Saline Waters 
SHEPPARD T. POWELL VET 
Demineralization as an Additional Water Source for Arid Lands 
Wirueimus F. J. M. Kru 272 
The Salinity Factor in the Reuse of Waste Waters 
H. E. Haywarp 279 
Induced Precipitation 
E. G. Bowen 291 
Some Relationships of Experimental Meteorology to Arid Land 
Water Sources 
VINCENT J. SCHAEFER 300 
Some Problems in Utilizing Water Resources of the Air 
GLENN W. BRIER 314 
The Economics of Water Sources 
Louis KoEnic 320 
BETTER ADAPTATION OF PLANTS AND ANIMALS 
TO ARID CONDITIONS 
Adaptation of Plants and Animals 
Omar Draz RAT 
Better Adaptation of Plants to Arid Conditions 
R. Merron Love 343 
Animals and Arid Conditions: Physiological Aspects of Productivity 
and Management 
Knut Scumipt-NIELSEN 368 
The Locust and Grasshopper Problem in Relation to the Develop- 
ment of Arid Lands 
B. P. Uvarov 383 
Desert Agriculture: Problems and Results in Israel 
Micuaert Evenart AND Dov KOLLER 390 
