By Robert H. Davies, F.I.C., F.C.S., General Superintendent of Apothecaries' Hall.

The three oils that form the subject of the examination detailed in this paper were consigned to a London broker, with a view to their being regularly exported from China if a market could be found for them here: it was, therefore, necessary to ascertain what commercial oils they resembled in character, so as to estimate to what uses they might be applied.