1885.] Geology and Paleontology. 595 
American types need to be brought into their proper place, I 
have thought best to offer a brief synopsis of those Carboniferous 
forms heretofore discovered (with a few additional ones from this 
continent), which may be referred to the ancient Phasmida 
Among them will be found nearly all the species heretofore re- 
ferred to the Termitina from the European coal measures, for a 
careful study shows that the white ants were not at all represented 
in Paleozoic times, so far as the forms yet discovered show. 
Most of those which have been considered Termitina belong 
rather here (they have already in several instances been referred 
here), while others belong to other groups of Neuroptera than 
Termitina—S. H. Scudder, in Proceeds. Amer. Acad. Arts and 
Sciences. 
GrotocicaL News.—General—The Boletin Acad. Nac. de 
Ciencias de Cordoba contains two articles by L. Brackebusch 
upon the geology of the province of Jujuy. Except for the in- 
formation gathered in 1876 by Lorentz and Hyeronimus, an 
some notes on the primordial fauna by E. Kayser, this northern 
part of the Argentine Republic has hitherto been geologically 
unknown. The south-eastern part of the province, near the Ver- 
mejo, is comparatively low, though even here the Sierra of St. 
Barbara rises west of the Rio S. Franciso to 3000 meters. e 
larger central and western portion is entirely a mountain land, 
range after range rising to heights of from 4500 to 5500 meters, 
separated by valleys, some of which are basin-like depressions, 
km broad. This western part is sterile, while the east is . 
highly fertile. The mountains of Jujuy have a closer relation to 
the Bolivian plateau than to the chains of the center and west of 
the Argentine provinces. The most western chains (Sierras de la 
Puna) consist principally of clay slates, alternating with grau- 
wacke, and, save in one locality, are without fossils. The easterly 
Sierra de Chuni consists of slates, grauwacke and sandstones, the 
last rich in Silurian fossils, graptolites, trilobites, cephalopods and 
brachiopods. Newer formations occur in the basins between the 
mountains, gypsum-bearing sandstone, dolomite, limestone, oolite 
and bituminous shales, etc. Fish andi t ins have been foun 
in the Sierra St. Barbara. Strata corresponding to those which 
