The revival of the Indian System of Medicine at the present day is one of the welcome signs of the times, and is seen in such publications as the present volume by Dr. T.G. Ramamurthi Iyer. The Ayurvedic and Siddha system of Medicine date back to a hoary antiquity, and became in the course of time the parent source of all the other Medical systems of the world. The humoral theory of the Hindus, though misunderstood, dominated the Greek, Roman, and Arabian ...