282 Ihe American Geologist. April, is 
PERSOIsrAL AND SCIENTIFIC NEWS. 
The Hayden Memorial Medal has been awarded by the com- 
mittee of the Academy of Natural Sciences, of Philadelphia, to 
professor Edward Suess, of Vienna. 
Diamonds in meteoric stones. H. Moissan in the "Coraptes 
Rendus' for 1893, pages 116 and 288, gives the result of his in- 
vestigation as to the nature of the Canyon Diablo, Arizona, 
meteorite. He found in it a transparent diamond, black diamond, 
brown coal, and graphite. In the same periodical, 1893, pages 
11 G and 288, he mentions the existence of graphite, black dia- 
mond and microscopic transparent diamonds in the "blue-cla}'" 
of the South African diamond mines, which, he says, contains 
more than 24 species of minerals. These results are of great in- 
terest, especial!}' when taken in connection with the discover}^ by 
W. Luzi and A. Sauer, of graphitoid in certain quartzite slates 
and phyllytes of the Tason Erzgebirge. These gentlemen found, 
near Wiesenthal, an amorphous substance which contained 99. 02 
per cent, of carbon, and 0. 54 per cent, of hydrogen, but no nitro- 
gen. It resembles the mineral schungite, which was discovered 
in 1884 in phyllyte from the Olonetz government, Russia, and con- 
tains some nitrogen. The Canyon Diablo meteorite has also been 
examined bj' C. Friedel ("Comptes Rendus, " 1893, pages 116 
and 290), who found that the microscopic transparent diamonds 
became visible after removing the black diamonds, or carbonado, 
with methylene iodide. He found also that between the layers of 
the nickel-iron and accompanied by lamellae of schreibersite there 
were thickish leaves of a lusti'ous, silver-white substance which 
proved to be a subsulphide of iron, with 10.2 per cent, sulphur 
and 88.3 per cent, iron, coiTCsponding, therefore, to formula 
Fe5S. Imbedded in this substance were little knots of yellow 
troilite, and the mixture of ordinaiy coal, graphite and diamond 
seemed to be concentrated near the troilite. The little knots of 
troilite were surrounded by a thin layer of the lustrous subsul- 
phide of iron. 
Reprint of Conrad's Tertiary Fossils. Mr. Gilbert D. 
Harris, of the Smithsonian Institute, is projecting a reproduction 
of the Eocene or earlier volume of Conrad's "Tertiary Fossils." 
The Wagner Free Institute, of Philadelphia, will reprint the 
Miocene volume, with its engravings and plates, with some new 
matter,if 150 copies are subscribed for in advance at $3.50 per 
cop3'. Mr. Harris" reproduction will consist of Nos. 1,2,3 and 4 of 
the original edition of 1832-33, and the so-called reprint of No. 3, 
1835, the various changes being given in full. Mr. Harris will 
proceed with this when 100 subscriptions have been received at 
$3. 00 each. 
