slumbered in copper and zinc, which lay quietly beside silver. As soon as all three are brought together under the required conditions silver is consumed in flame. A dry seed of a plant may preserve the slumbering power of growth through two or three thousand years and then reappear under favorable conditions. Sir G. Wilkinson, the great archaeologist, found some grains of wheat in a hermetically sealed vase in a grave at Thebes, which must have lain there for three thousand years. When Mr. Pettigrew sowed them they grew into plants. Some vegetable roots found in the hands of an Egyptian mummy, which must have been at least two thousand years old, were planted in a flower-pot, and they grew and flourished. Thus, whenever the latent powers get favorable conditions, they manifest according to their nature, even after thousands of years. Similarly, there are many instances of slumbering mental powers. After remaining dormant for a long period in our normal condition, they may, in certain abnormal states--such as madness, delirium, catalepsy, hypnotic sleep and so forth-flash out into luminous consciousness and throw into absolute oblivion the powers that are manifesting in the normal state. Talents for eloquence, music, painting, and uncommon ingenuity in several mechanical arts, traces of which were never found in the ordinary normal condition, are often evolved in the state of madness. Somnambulists in deep sleep have solved most difficult mathematical problems and performed various acts with results which have surprised them in their normal waking states. Thus we can understand that each individual mind is the storehouse of many powers, various impressions and ideas, some of which manifest in our normal state, while others remain latent. Our present condition of mind and body is nothing but the manifested form of certain dormant powers that exist in ourselves. If new powers are roused up and begin to manifest the whole nature will be changed into a new form. The manifestation of latent powers is at the bottom of the evolution of one species into another. This idea has been expressed in a few words by Patanjali, the great Hindu evolutionist who lived long before the Christian era. [Footnote: The reader ought to know that the doctrine of Evolution was known in India long before the Christian era. About the seventh century, B. C., Kapila, the father of Hindu Evolutionists, explained this theory for the first time through logic and science. Sir Monier Monier Williams says: "Indeed if I may be allowed the anachronism, the Hindus were Spinozites more than 2,000 years before the existence of Spinoza; and Darwinians many centuries before Darwin; and Evolutionists many centuries before the doctrine of Evolution had been accepted by the scientists of our time and before any word like Evolution existed in any language of the world." (P. 12, "Hinduism and Brahminism.") Prof. Huxley says: "To say nothing of