There are a few people who advocate, and claim to follow, special dietetic methods such as vegetarianism and uncooked (raw) foods. The advocates of these dietetic practices, which are followed in some countries at least by a few persons, profess to find in scientific facts and daily experience a justification of their position. It appears to the writer that arguments advanced in favor of these unusual eating habits are generally presented in a manner that is far from judicial. Certain well-established facts are assumed to support the contentions made, when a connection has not been established by proof, antagonistic facts^ are ignored, and the long-continued experience of the human family on a mixed diet of cooked meats and vegetables is given less weight than it deserves. It is the method of argument adopted by those persons who have come to see a single set of facts in exaggerated perspective.