What India has been in the past 300 years to our Army as a nursery in which our soldiershave obtained experience in their profession and earned their promotion, often to the highestrank, such in a lesser degree has it been to many of our geologists, who have, in the past much shorter period of 50 or 60 years, entered the service in this vast field of scientific enterprise, and, aided by a very few amateur geologists in the Army and of civilians attached to other branches of Government employ, have covered many thousand square miles of our Indian Empire with records of their untiring energy in the geological field.