Published by the Management Committee of Benaras Hindu University in 1916 with the idea that this book goes into the hands of Hindu boys in middle and upper sections of schools. This book written in English covers a good span. This is probably more useful in the hands of all ages of people today. Given it is in English, this book can be useful for those who are elsewhere too and are comfortable in English. May be for the Gen Next education.
University of California had this book in their library. It was digitised for Microsoft, and is now available for all to go thru.