I think I may safely say that there is no place-name in English topography which has given rise to more discussion and controversy than Coldharbour. In the course of a somewhat close and detailed examination of the ordnance survey maps which I had to make while preparing the papers I recently read to the Society on the circumstances and surroundings of Pre-Roman Silchester, I was struck with the frequent occurrence of Coldharbour in that area until I felt convinced that it had some distinct relationship to the subject-matter of my inquiry.