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Excerpt from The Journal-Lancet, 1924, Vol. 44: A Semimonthly Medical Journal The amount and strength Of the solution varies with the Size and general resistance of the pa tient. For greatly debilitated patients and for relatively poor surgical risks per cent strength is used. The amount is then gauged more or less on the probable size of the sacrum. From 20 to 40 c.c. Of the solution are injected into the sacral canal and the sacral foramina, according to their Size and the Size of the nerve trunk to be blocked. The greatest amount Should thus be injected into the first foramen and the quan tity reduced for each successive foramen, that is, 7, 6, 5, 4, and 3 c.c., respectively. From 75 to 140 c.c. Of the per cent solution have given uniformly complete anesthesia. When 1 per cent strength is employed, as in the average case, 20 to 25 c.c. Are injected into the sacral canal, and the posterior foramina are injected in the same ratio as with the per cent solution. From 60 to 90 c.c. Of a l per cent solution have, in all cases, produced complete physiologic block. 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.