The Three Way-marks by Robert Caldwell first published in 1860.THIS little book was originally written in Tamil, under the name of நன்னெறிக்குறிப்பு, and has now been translated into English in the supposition that it may be read with advantage by natives who have learned English. The ideas contained in the book being such as unlearned natives can understand and appreciate, and those ideas being expressed in a style resembling that of the Indian languages, it is hoped that the book will be more thoroughly intelligible than ordinary English books to those Hindus who understand English, but who think in the vernaculars. If this little work should fall into the hands of any natives of superior attainments who have studied European sciences and the history of the western nations, their knowledge of history will enable them to confirm the truth of what is stated herein by many remarkable illustrations, which the writer was prevented from making use of by the fear that they would not be understood, and the certainty that they would not be appreciated, by persons who were ignorant of geography and history.