Excerpt from Annual Report of the Surgeon-General of the Public Health and Marine-Hospital Service of the United States: For the Fiscal Year 1907 It becoming known to the Bureau that State and municipal boards of health were purchasing vaccines, serums, etc., under contract, said boards have been invited to send samples to the Hygienic Laboratory for examination to ascertain if these large lots are of the same purity and potency as samples purchased in open market, and a number of boards of health have already availed themselves of this offer. During the year certain lots of antidiphtheric serum of one firm were found to be lacking in potenc Their attention was called to this fact by the Bureau, and the rm immediately recalled all the serum under their laboratory numbers and expressed a determination to prevent a recurrence of the low potency. Complaints were also received in the Bureau that certain serums, after their period of potency had expired, and after removal of the old labels, had been relabeled and these relabeled products placed on the market. The labels contain the date to which the serum is guaranteed by the manu facturer to retain its potency. In the trade it is customary to return the serum at this date and receive fresh serum in its stead. This complaint was referred to an inspector, who received assurance that such relabeling had been discontinued. Special attention will be paid to the prevention of a repetition of this violation of the regulations. One foreign firm was found to be sending its products to the United States without a license. They were notified of the necessity of a license and an inspection prior thereto. The refused to permit an inspection, and accordingly the Secretary 0 the Treasury has directed the customs officers to refuse entry of any virus, serum, or toxin applicable to the prevention and cure of the diseases of man manufactured by this firm. Their a ants in the United States have been advised of this action and that t e sale of any of these products in the United States is illegal. It will be seen that great care is exercised in the enforcement of this law, which is so essential to insure purity and potency of this most important class of therapeutic preparations. 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.