Eeviev) of Recent Geological Literature. 115 
to an equal extent. Comparison with fault scarps that have displaced 
the sediments of the Quaternary lakes Bonneville and Lahontan, in 
the recent ui)lifts of the errand Wasatch and Sierra Nevada ranges, 
indicates that tliis disphu-oment l)etween the Piedmont region and the 
coastal plain is not inferior in the amount of change now taking place. 
But the author supposes tliat mountain building is in as active progress 
in th(> Cordilleran region of western America, and particularly in the 
Great Basin, as in any country ; and accepting that mountain growth 
as a standard for i)a8t ages, he concludes that the present rate of dis- 
placement along the fall-line of the middle Atlantic slope is about as 
high as has ever been attained in any part of the globe during any 
geologic period. It seems very difficult, however, to account for these 
movements, as the author endeavors to do, by erosion and deposition 
subtracting from and adding to the weight of these portions of the 
earth's crust. 
Die Lunzer, (Letlenkohlen), Flora ?n den "older Mesozoic beds of the 
Coal Field of Eastern Virginia,^' von D. Stcr : Verhandl. d. k-k. geol. 
Reichsanstalt, Wien. No. 10, July 1888, pp. 203-217. A smaller col- 
lection of fossil plants from the older mesozoic of, Virginia, sent last 
year by the United States geological survey to Dionys Stur, director 
of the Austrian geological survey, for comparison with the Austrian 
mesozoic flora, was made the subject of the communication under the 
above title, submitted last summer to the latter survey. 
Since the publication of Professor Fontaine's monograph on the 
older mesozoic flora of Virginia, Professor Stur has urged the intimate 
relation between that flora and those of the Lunz beds in Austria, but 
fearing to rely on the former's illustrations, he has withheld specific 
conclusions until a comparison of the specimens should have ])een 
made. Now, however, as the result of such comparison, he correlates 
the Virginia beds with the Lettenkohl fKeuper] of Lunz. Following 
is a list of the Virginia plants so compared, with their equivalents in 
the Lunz strata, the Clover Hill plants on the left and the Austrian on 
the right : 
Equisetum arenaceum, Jaeger, sp. 
Calamites meriani, Brgt. 
Tivniopteris latior et. 
Equi.setum rogersi, Schimper. 
Schizoneura virginiensis, Font. 
Macrota^niopteris m a g n i f o 1 i a , 
Rogers, Sp. 
Macrota'niopteris eras sin e rr i s, 
Font. 
Acrostichides linnawfolius, Bunb 
Sp. 
Acrostichides rhombifolius. Font. 
" densifolius. Font. 
" microphyllns,Font. 
Mertensides bullatus, Bunb, sp. 
" distans, Font. 
" simplex, Stur. 
? 
f 
Speirocarpus lunzensis, Stur. 
" riitimeyeri, Heer. 
" microphyllus, Stur. 
Oligocarpia robustior, Stur. 
" lunzensis, Stur. 
