“M. le Lieutenant-Général having been robbed by one of his lackeys, seven or eight months ago, and having lost by him twenty-five crowns which had been taken out of one of the cabinets behind his library, sent for Aymar, and asked him to discover the circumstances. Aymar went several times round the chamber, rod in hand, placing one foot on the chairs, on the various articles of furniture, and on two bureaux which are in the apartment, each of which contains several drawers. He fixed on the very bureau and the identical drawer out of which the money had been stolen. M. le Lieutenant-Général bade him follow the track of the robber. He did so. With his rod he went out on a new terrace, upon which the cabinet opens, thence back into the cabinet and up to the fire, then into the library, and from thence he went direct up stairs to the lackeys’ sleeping apartment, when the rod guided him to one of the beds, and turned over one side of the bed, remaining motionless over the other. The lackeys then present cried out that the thief had slept on the side indicated by the rod, the bed having been shared with another footman, who occupied the further side.” Garnier gives a lengthy account of various experiments he made along with the Lieutenant-Général, the uncle of the