Captain Cameron describes three villages built on piles in Lake Mohrya in Central Africa, and in his book of travels gives two sketches of these interesting abodes.--(_Across Africa_, vol. ii. p. 63.) Captain R. F. Burton--"Notes connected with Dahoman"--refers to a tribe called Iso, who "have built their huts upon tall poles about a mile distant from the shore."--(_Memoirs of the Anthropological Society_, vol. i. p. 311.) Pile-dwellings have been observed along the coasts of New Guinea and Borneo and the creeks and harbours running into the Straits of Malacca. In looking over some photographs recently brought from these regions, I was struck with one which is a representation of lake-dwellings at Singapore. The houses appear to be erected on a series of tall piles, and between the flooring and the water there is a considerable space in which the boats are hung up. * * * * * Though a few incidental notices of ancient lake-dwellings in Scotland preceded, in point of time, analogous discoveries in other countries, their real significance appears to have been overlooked till public attention was directed to the Irish Crannoges and Swiss Pfahlbauten. It is therefore desirable, on attempting to give a sketch of the work done in Scotland in this department of archæology, to give here a short account of these Irish and Continental discoveries, not only because they have been instrumental in opening up to Scottish antiquaries this wide field of research, the value of which as a storehouse of ancient relics is hardly yet realised, but because they enable us, by way of comparison, to point out some of the differences, as well as resemblances, of these ancient remains thus nominally associated under the common title of LAKE-DWELLINGS. IRISH CRANNOGS.[1]