
TechnologyJuly 1, 1957
Chemical Prospecting
The modern prospector may carry not only a Geiger counter but also test tubes and plastic bottles filled with chemicals. With them he can detect the traces of metal which surround a hidden body of ore

Chemical Prospecting
The modern prospector may carry not only a Geiger counter but also test tubes and plastic bottles filled with chemicals. With them he can detect the traces of metal which surround a hidden body of ore