The science of physiology in its present condition owes much of its advancement to the skillful manipulation of cunningly devised apparatus. Without the successful invention of delicate mechanical appliances many of the profound researches of Foster, Du Bois, Raymond, McKendrick, Martin and others would never have been possible. It must be granted, however, that invention and skill in manipulation have been supplemented by clear and comprehensive interpretation of results obtained, and it is to the latter that most credit is due. In emphasizing the value of scientific apparatus and its use, we recognize the imperative need of a fundamental knowledge in anatomy, histology, chemistry and physics, which the pupil must necessarily possess before entering upon advanced work in the science of physiology. It is true that the general student versed in these branches may secure a fair working knowledge of physiology simply from a good text, supplemented by ample anatomical demonstrations, complete diagrams and charts. But far more comprehensive will his views of the science be if a well-chosen list of experiments be worked by his own hand in a fully equipped physiological laboratory
