Excerpt from Annual Report of the Director of the Bureau of Standards to the Secretary of Commerce for the Fiscal Year Ended June 30, 1931 Improvements and refinements have been made in the measure ment and control of the temperature of the oil baths for the stand ard cells. Comparisons with several foreign national laboratories indicate that the bureau's value of the international volt is 20 micro Volts below that of England and 60 microvolts above that of Ger many. Experiments with the silver voltameter in which the bureau is cooperating through a representative now in Berlin, were begun in Germany in May and will be continued in England and France in the effort to reduce these discrepancies. Measurements with the rosa-dorsey-miller current balance showed that 1 international ampere (bureau of Standards) absolute ampere. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.