IN TIMOB-LAVT. 353 



Notes on the Table of Measceements. 



All the measurements given in the preceding table correspond to 

 those recommended by Broca in the " Instructions Craniologiques " 

 (Paris, 1875), except the following, some of which are not given in that 

 work : — 



The transverse arcs. — These are measured with the tap3 from the point 

 on the ridge at the posterior root of the zygoma immediately above the 

 middle of the external auditory meatus, where the ridge is crossed by 

 the auriculo-bregmatic line (the courbe sus-auriculare of Broca) over the 

 respective parts of the cranium, to the corresponding point on the 

 opposite temporal bone. 



Naso-alveolar length. — From the nasion to the alveolar point. 



Palatine region. — The maxillary length is measured from the alveolar 

 point to the middle of a line drawn across the hinder borders of the 

 maxillary tuberosities. This is easily done by stretching a piece of fine 

 wire across the back of the mouth, the wire resting on each side in the 

 groove between the pterygoid and the tuberosity. The width is taken 

 between the outer borders of Ihe alveolar arch immediately above the 

 middle of the second molar tooth. 



Facial angle. — The angle forcned by the meeting of the auriculo-alveo- 

 lar base line with the ophryo-alveolar face line at the alveolar point 

 measured with Broca's median goniometer. 



Nasi-malar angle. — The angle formed by the nasal bones and the ex- 

 ternal margins of the orbits at a point a little below the fronto-malaj 

 articulation. 



Nasi-maxillary angle. — Explained in the text, page 344. 



Basilar angle — This is the angle N B Y of the " Instructions," p. 92, 

 or the naso-basio-opisthial angb. 



Bi-zygostephanic /nrfea;.— Defined in the text, page 343. 



Conoroid height. — From the gonion to the top of the coronoid process. 



Gonio-symphesial height measured with the calipers. 



The size of the glabella, nasal bones, and spine, inion, wormian bones, 

 and wear of teeth, are indicated by Broca's descriptive numbers given 

 in the " Instructions." 



Explanation of Plate (pp. 344, 345). 



All the figures represent the skulls with the alveolo-condylar plane 

 horizontal. 



The photozincographs were reduced from drawings by Mr. J. G. 

 Goodchild, the outlines of the skulls from which they are taken having 

 been previously geometrically projected by means of Broca's stereograph 

 by myself. 



This paper is reproduced from the ' Journal of the Anthropological 

 Institute ' for May, 1 884. ( H.O.F.) 



