v. 3, no. 11-12, are reprints of: Archives of dentistry v. 1, no. 11-12.

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Excerpt from The New England Journal of Dentistry, 1883, Vol. 2 Some things about the necessary requirements for such experi ments. What to the histologist the microscope, that is to a chemist a fine and delicate balance, and as the value of a microscopist depends in a large degree upon the power of his instrument, so the value of a chemist in a great measure depends on his chemical balance. The balance in our laboratory easily and unmistakably could be adjusted to? 10milligram (film of a grain), and during these experiments we had0 to Work with this nice adjustment, necessitating very slow and tedious work. One weighing sometimes took one and two hours and more. As the quantity of decay of uniform structure - not of a composite mass, very often was less than 3 - 15 of a grain, an error of T's of a milligram considerably influenced the result. The losses were always determined without removing the first weights from the weight pan, but only removing the difference, so that no objection could be raised against accidental errors, e. G., if a decayed mass on the plati num lid of a crucible, together with the lid of milligrams weighed milligrams, and it was found after ignition that the residue still weighed milligrams, and the lid after the removal of the little lime residue weighed 2801. 05 milligrams as before, there was no mistake possible, the result was Simply Weight of lid decayed mass. 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.