Geology and Mineralogy. 489 
and plates on microscopic lithology, distributed through the 
sb and is accompanied by an atlas of large, colored, geological 
maps. It bears evidence throughout of careful study. It is 
especially important for its iilustrations of Archzan formations ; 
its detailed lithological descriptions of the various i dewsns 
rocks, based largely on ng gah an urespaeuos 8; and, economi- 
cally, for its — on the iron ore regio s and their ores Sigal 
mines, and on the Renew: ‘Gouget region. It also contains 
various observation on Quar eats deposits, terraces and erosion. 
3. Paleontology io New York. Vol..V. Part 2, ma ep 
by J AMES Hat, State Geoloxis Text, 492 PP. ee ne a 4to 
ume in 1877, and notice of the same was given in volume xiv of 
this J ournal (p. 4 
is second se “Of volume V, now published, will soon be fol- 
lowed by Part I, which treats of Sr Lamellibranchiata ; 80 
ZOANS, coor ods and Crustaceans of the Upper Helderberg 
printed. Further, over 800 other drawings of cora 7a Meee been 
made for the final illustration of this class of fossils. These state- 
ments show that great perwt — been made toward the comple- 
my of the New York Paleo 
4. Report on td: Geological pi of New Jersey for the tc 
187 9; by the State Geologist, Professor G. H. Coox.—This re 
contains new facts relative to some of the aes Yotahationa 
has afforded Sasha. (the “ decorticated trunk”) of a fossil plant 
which, according to Professor Lesquer reux, resemble much the 
Lepidodendron cick inka a speci he Devonian and 
Subcarboniferous ery itive evidence will = required to 
make it certain that it is this old species, or any species of 
idodendron. Professor Cook states that the sandstone of the 
“southeastern margin of the formation contains mostly grains of 
feldspar instead of quartz,” as if made from a very feldspathic 
gneiss or granite, such as is found in great quantities on that side 
