OCR Text |
Show Scientists Frown on Idea of Divining Rod Letters are frequently received by I the geological survey. Department of the Interior, asking for the nnmes and prices of the best makes of instruments instru-ments guaranteed to find diamonds, gold, silver and other metals, and especially buried treasure. The claims of venders of mineral rods and other devices said to be effective in locating precious metals and buried treasure are considered fraudulent by the geological geo-logical survey. The dip needle or miner's compass has been used with some success in prospecting for iron and other magnetic ores, but the successful suc-cessful use of such an Instrument requires re-quires considerable experience In sur veying, together with the ability to make accurate mathematical observations observa-tions and deductions. Various types of electrical prospecting devices, the seismograph and the torsion balance, have aroused considerable interest during the last few years. These1 devices, de-vices, however, are most complicated and require the services of technical experts specially trained in their use-. They would be of no service to one not versed in the principles of geology and physics. |