Notes and queries on anthropology / edited for the Council of the Anthropological Institute by John George Garson, M.D. and Charles Hercules Read, F.S.A.

Date:
1892
Catalogue details

Licence: Public Domain Mark

Credit: Notes and queries on anthropology / edited for the Council of the Anthropological Institute by John George Garson, M.D. and Charles Hercules Read, F.S.A. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    in its carrier, C and E, which fits on the rod, A, and can be lengthened or shortened in respect to its projection on either side of the rod. The sliding arm also slides vertically as well as horizontally while the fixed arm slides only horizontally ; both arms and their carriers are easily removable from the rod, so that either one or both may be nsed as occasion requires. A foot-piece in the form of a shallow box, fig. 2, G, in which the arms and their carriers are packed, is supplied as part of the apparatus. To this the rod may be fixed in an upright position, by inserting it into the bore in the hole I, or by attaching a rest, H (also supplied with the instrument), to the zero end of the rod, it stands in a vertical position on the lid of the box. To take the first four essential measurements, place the arms on the first segment of the rod with their extremities projecting equally on either side of it, PI. I, fig. 1. The length and breadth of the head are measured between the curved ends of the arms, the dimensions of the nose between the straight and pointed ends. To measure the projections Nos. 5, 6, 7 and 8 slide the fixed arm horizon- tally till its curved end is prevented going further by the carrier, PI. II, move the sliding arm horizontally in the opposite direction till the point of the straight end is only jnst seen beyond its carrier; adjust the head of the subject to the proper position for measurement and rest the fixed arm on the vertex, the pointed end directed towards the back of the head, while the rod rests against the point of the person's nose ; slide the gliding carrier and arm, D E, vertically downwards to opposite the root of the nose, and finally slide this arm, D, horizontnlly forward till its pointed end touches the proper spot, b, PI. II, at the root of the nose, when the measurement may be read off on the rod. The gliding arm is now moved horizontally from the face, drawn vertically downwards to opposite the mouth, and again projected horizontally towards the face, then by careful adjustment with the two movements of the arm the measurement from vertex to mouth, d, is obtained. The other projections are measured in a similar manner.