Geology and Mineralogy. 419 
eight from the Triassic of Fai irplay, Colorado, of the genera 
i (new), Oryctoblattina, Petr ablattina and Poroblat- 
14. Silurian fossil Cockroach from Jurques in Northwestern 
hee M. C. Bronentarr has announced the discovery of the 
of a cockro ach, showing most of its nervures, in a piece of 
Middle Silurian Sandstone belonging to De Verneuil’s collection. 
The wing is 25 mm. lon ng. -He proposes for it the name Paleo- 
blattina Douvillei. Its geological position makes it older than 
the Scotch and Swedish > oi R., Dec. 29, 1884; Ann. 
Mag. Nat. Hist., xv, 355, April, 1885. 
15. Geology of Southern Kansas.—A paper in the Bulletin 
of the Seep College ne we SE Topeka, Kansas (vol. i, 
500 Square miles. It occurs in the Dakota beds, but to the west 
is “aoa in the overlying Benton group, and later Cretaceous. 
gypsum bed is distinct from another Kansas bed in the 
Permo-Carbonitero 
16, Tiasteasione, of the Fauna of the St. John Group, contin- 
ued: on the pcan hole sl gone remarks ae _— es, 
by 8. F, Marrne Trans. Roy. Soc. Canada, 1884, p. 99.— 
" Mat eae in his Sencliiiag remarks observes ‘that the St. 
John var eo probably older than the other Cambrian areas . 
the Atlantic border, the ate Scolar and the eastern Mass 
Chusetts, and are best comparable in fauna with the oldest of 
the British se 
17. Min fe ee No tes.—Professor G. ay Ratu in a recent 
Memoir (Bonn, 1885), describes and figures a number of the 
remarkable quartz crystals from Alexander ‘aa Burke counties, 
North Carolina, which had been placed in his hands for study by 
. eral American mineralogists, Of the North Carolina crystals 
1 general, he says that in er ystallographic interest they surpass 
the specimens of all other known localities of this most remarka- 
ble of minerals. They seem, he says, to dacs all the interest- 
upper ciatianhedeal se partien Ber e twin 
erystale also offer many peculiarities. Several new planes are 
Siven by vom Rath, for which, and other ai of detail, how- 
ever, i ht must be made to the original p 
€ same pamphlet contains the ete am. of a remarkable 
