Contributions to the Craniology of the People of the Empire of India. Part I-II (more published). Part I. The Hill Tribes of the North-east Frontier and the People of Burma. Part II. The Aborigines of Chúta Nágpúr and of the Central Provinces, the People of Orissa, the Veddahs and Negritos. Edinburgh, Robert Grant & Son, 1899-1901.

On Rare Defects in Human Populations with Particular Regards to In-breeding and Isolate Effects. [Offprint: Proceedings of the Royal Society of Edinburgh, Session 1937-1938, Vol. 58(1938): Part 2, No. 15]. Edinburgh & London, Robert Grant, Williams & Norgate Ltd, 1938.