Prof. Huxley on a new Species of Dicynodon. 307 



2. The supratemporal fossae are much longer from within out- 

 wards than from before backwards, owing partly to the shortness of 

 the parietal region. 



3. The alreoli of the tusks, the transverse section of which is cir- 

 cular, commence immediately under the nasal aperture, and extend 

 forwards and downwards parallel with the plane of the nasal and 

 upper part of the premaxillary bones, and do not leave their sockets 

 until they have passed beyond the level of the posterior end of the 

 symphysis of the lower jaw. 



4. The nasal apertures are altogether in front of the orbits. 



5. The length of the upper jaw in front of the nasal apertures is 

 certainly equal to one-third, and probably to one-half, the whole length 

 of the skull, which is between 6 and 7 inches. 



6. The OS quadratum is about half as long as the skull. 



These peculiarities are regarded as sufficient to distinguish Dicy- 

 nodon Murrayi from all others ; and the author stated that he should 

 reserve the description of many other anatomical features, which are 

 probably more or less common to other Dicynodons, such as the 

 bony sclerotic, the bony interorbital septum and vomer, the cha- 

 racters of the humerus, of the [)elvis, and of the ril)s, for another 

 paper, in which other Dicynodont remains will be considered. 



4. " On the Coal found by Dr. Livingstone at Tete, on the Zam- 

 besi, South Africa." By Richard Thornton, Esq. 



Mr. Thornton states that this coal is free-burning ; showing no ten- 

 dency to cake ; containing very little of either suljihur or iron, a large 

 proportion of ash, but only a little gaseous matter. The result of the 

 trial (made in the steam-launch) of this coal, and its appearances, 

 favour, in the author's opinion, the idea that the coal, when taken 

 from a deeper digging (that which Dr. Livingstone had sent was 

 collected at the surface of the ground), will probably contain less 

 ash and a little more gaseous matter. 



March 9, 1859.— Sir C. Lyell, Vice-President, in the Chair. 

 The following communications were read : — 



1. " On some Minerals from Persia." By the Hon. C. A. Murray. 

 The mineral specimens referred to were obtained from the district 



between Tabriz and the Caspian, especially from the Karadagh 

 Range, and consist of native copper, chrysocolla, red oxide and 

 black oxide of cojiper, malachite, azure-copper, bornite, copper- 

 glance, copper- pyrites, varieties of galena, zinc-blende, magnetite, 

 specular iron-ore, manganese-ore, orpiment, sulphur, and brown- 

 coal. The scries of copper-ores appears to indicate the existence of 

 considerable masses of metallic mineral, probably in lodes or regular 

 veins. The lead-ores have tlic appearance of having been taken 

 either from veins of small size, or from near the surface of the ground. 



2. " On the Veins of Tin-ore at Evigtok, near Arksut, Green- 

 land." By J. W. Tayler, Esq., F.G.S. 



These tin-veins, of which there are about twenty, extend over an 

 area of about 1500 feet in length by 80 feet in breadth; and they 



