sts the bridge reading should of course be 1.0, if balanced againstthe 100 ohm coil. This test of the instrument should occasionally bemade to note the adjustment. In case readjustment should be neces-sary, the screw holding the pointer is loosened and the pointer adjustedin the manner already… … WASHINGTON GOVERNMENT PRINTING OFFICE. l899 LETTER OF TRANSMITTAL. U. S. Department of Agriculture, Division of Soils,Washington, D. C, March 30, 1899.Sir: I have the honor to transmit herewith a report upon electricalinstruments for determining the moisture, temperature, and solublesalt content of…
Soils Analysis · Electric apparatus and appliances
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