Excerpt from The Psychological Monographs, Vol. 19 These similarities Of symptoms in different diseases and the variations in symptoms in different individuals with the same disease are paralleled by variations in actions Of different drugs and by differences in the reactions Of different individuals to some foods. In some, the eating Of strawberries or Of fish is accompanied by disagreeable effects, and in other individuals the effects following the administration of therapeutic doses of certain drugs are not only disagreeable but Often dangerous. Small amounts Of the derivatives Of opium, of arsenic, of antipy rine, and Of even generally supposed-to-be-harmless quinine at times give rise to violent physiological reaction, although most people may take small doses Of these drugs with impunity and without apparent physiological changes. 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.