CJiief Sources of Metals in the British Empire. 543 



Very probably it is T. pentelicus, a form described by Gaudry ^ from 

 Pikermi. 



The length of the portion of the mandibular ramus preserved is 

 537 mm.; its depth behind the molar 170 mm. (app.), the depth at 

 the posterior end of the symphysis 145 mm. The length of the 

 molar so far as preserved is about 120 mm. The glenoid end of 

 a scapula, in which the long diameter of the glenoid cavity is 

 roughly 175 mm., aud part of a tibia were also collected. Numerous 

 other bones seem to have been noticed in the same deposit, which is 

 on and near the beach, and the locality is one which may prove of 

 great importance, although the matrix is much harder than that 

 of the probably contemporary bone-bed of Samos, and the difficulty 

 of obtaining good specimens consequently greater. 



IV. — The Imperial Institute Map of the Chief Sources of 

 Metals in the British Empire.* 

 ri1HE Imperial Institute, in continuation of its publications with 

 X reference to the mineral resources of the Empire, has now 

 issued a map with diagrams indicating the sources within the Empire 

 of the chief metals of commercial importance. The outline map 

 sh-ows the occurrence in each British country of the important 

 metallic ores and also the existence of deposits at present nnworked. 

 The locality for each occurrence is not given in detail, but only 

 a general statement, carried out by printing the names of the metals 

 therein found in large type across the face of the country. Asterisks 

 indicate existence of nnworked deposits in producing countries, 

 while brackets show the existence of nnworked deposits in non- 

 producing countries. Diagrams are also given, showing in a graphic 

 form the production of metal or ore in each producing country ; 

 these statistics are given for the year 1915 : since that date many 

 and important changes have occurred, although no doubt it would be 

 difficult, if not impossible, to obtain complete and reliable figures for 

 the later years. The diagrams also show in an instructive manner 

 the relation of the output of the British Empire to those of other 

 countries of the world. The facts here set forth, when carefully 

 studied, afford much food for reflection. 



In the first place it is to be noted that practically every British 

 country, colony, or dependency produces metal or ore of some kind 

 or another, and the British Empire as a whole is a producer of nearly 

 every metal of practical importance, the only really notable excep- 

 tions being platinum and mercury ; for these we are entirely 

 dependent on foreign supplies. 



One of the most striking features disclosed is that more than half 

 the total production of gold of tlie world comes from within the 

 British Empire, the largest producer of any country being South 

 Africa; the annual value of the gold output of this region is now 

 in the neighbourhood of £40,000,000 per annum. Unfortunately, 



^ Gaudry, Animaitx fossiles et Giologie de VAttiqiie, 1862, p. 142. 

 - With diagrams of production for 1915. Published by the Imperial 

 Institute, 1918. Price mounted on linen 5s. 6d. 



