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Excerpt from A Laboratory Manual of Physics and Applied Electricity, Vol. 1 of 2: Junior Course in General Physics Record OF observations. All original observations are to be entered in the regulation notebook at the time they are made. The uniform observance of this rule will save annoyance from simple mistakes due to carelessness or haste, which are frequently made even by the-best observers, and which, without the original observations, it would be impossible to correct. It is a saving in the end to devote enough time to the origi nal records to make them neat and clear, and so complete and logically arranged as to enable any person who is familiar with the experiment to understand the meaning of each figure recorded. In all cases it is the original observations that are to be recorded. A derived result should in no case be recorded as an observation, no matter how simple may be the process of derivation. 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.