FOR the student of sexual inversion, ancient Greece offers a wide field for observation and reflection. Its importance has hitherto been underrated by medical and legal writers on the subject, who do not seem to be aware that here alone in history have we the example of a great and highly-developed race not only tolerating homosexual passions, but deeming them of spiritual value, and attempting to utilise them for the benefit of society. Here, also, through the copious stores of literature at our disposal, we can arrive at something definite regarding the various forms assumed by these passions, when allowed free scope for development in the midst of a refined and intellectual civilisation. What the Greeks called paiderastia, or boy-love, was a phenomenon of one of the most brilliant periods of human culture, in one of the most highly organised and nobly active nations. It is the feature by which Greek social life is most sharply distinguished from that of any other people approaching the Hellenes in moral or mental distinction. To trace the history of so remarkable a custom in their several communities, and to ascertain, so far as this is possible, the ethical feeling of the Greeks upon this subject, must be of service to the scientific psychologist. It enables him to approach the subject from another point of view than that usually adopted by modern jurists, psychiatrists, writers on forensic medicine.