Excerpt from 29th Biennial Report of the Montana State Board of Health: July 1, 1956 June 30, 1958Although the total number of specimens and examinations have decreased there have been some increases. Diphtheria specimens have almost doubled over the last biennium. Other increases have been in lactobacilli counts, Rh groupings, and bacterial tests on water.The number of specimens for tuberculosis studies for animal pathogenicity have increased.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.