•">1"> Jill Auk riiil II ( 1 1 iiIihJikI . J>.<-.-iiil«T. IKitl 
• Iniiljlc. Iiciiiii- >;'.I1:'>,0<1() ill iss'.l. iilthiingli at IIm- sniiif time its avcnijre 
|iii(<' per tun fell Iroiii iihout !i?.")0 to %'-\v\. 
Aiiimliiliil l.l.-<l ,.f III, M tui mix ,K-riinluii ill I'ihiihIii. l>y (J. (iumstian 
lltiiiMANN. 'I'll.' literature of this subject, botli of the Geohjgical Sur- 
vey |Mil)li(atii)ns and of seietititic Journals, is here well epitomized. Kb 
lierial indel)tedness is ackno\viedi,'eil to the writinirs of Dr. T. Sterry 
Hunt, whose extended ami important ( ontributions to the miueralo-ry ol 
Canada are stated to be the basis of this work. 
Sii/ijil, ,1,1 1,1 A /,, i;, ,,,■!/, J.. A'// (///.<// <|- f,.'s C'li/iri'i/iii nf .]//„, ,;i/.^. Si'\t\., 
l^iH. 7;!" IJroatlway, New York. 
rhi-; is mueli more tliaii a dealer's list of iiis stock for sale. It is a 
carefully compiled sketch of new speeiex created since the ai)pearauce 
of ilicir oriuinal cataloiLTue, with their physical ami chemical characters. 
The lirm is renderim; a real service to mineraloiry in briuiiing together 
in convenient form these scattered facts. an<l providiiii; students with 
the means of procnriui: specimens. 
Vrniii .liijiiii, III li vii iiiiilii. Sl.i.lrliis iif iih.iirrii/i'iii I'ml iiii/n/ii/ in o 
liiiir niiiiiil till irnrhl in IS81-8. By Jam i;s Hkni: v (iiAi'iN, 12 mo., m^') 
jt]>. illustrated, Putnam's Sons, New York, issji. 
Prof. ChaiMii has seen things with the k<-ii of au iiniuiring an<l 
observing geologist, and lias succeeded in making a very instructive nar 
ratjve of his trip. 
S.,l, ..„ nnl. .ii„rii,„„.-<,;.ll,rl,,l 1,1, W . I ;,.,r/,i „,l /•>/.,/„ /{<n:-i. I'.yT. 
II. lloLi.AM). Kst|.. ( (^..I. <;. S. May, is'.d, vol. \i.vir.) 
.Mtliough the southern iiaif of Korea may be looked upon as a dis 
tinctly hilly country, there are no mountains e.\cee<rmg jyXIO to 4,000 
feet in hight, and these ai'e for the most part rounded hummocks bound 
ingricc growing valleys and i>lain>. 
The rocks Imildiug up these liills are chielly members of the grouji 
of crystjilline scliists aivl gneisses, with graphite, garnet, dichroite, and 
lluor occurring in considerable abumlance: and the whole group forms 
probably a ]>art of the great mass of Arcluean rocks of northeastern 
China, so w<ll known through the descriptions of Vou liichthofen. 
Stratilied rocks of various kinds (shales, sandstones, grits audconglomer 
ates I lie uuconformably on the schists in the southeastern jtart of the 
]>cninsula and are prol)ab|y of Carboniferous age. 
Through the crystalline schistsand stratified rocks various igneous rock.s 
have lieen eru])ted, and arc now exposed as projecting dykes, or in large 
masse», as bare, rounded liills and mountains, .\mougst the results of 
igneous action uranite is the most con&j)icious rock. IJiotite and musco 
vite granites are mo>t widely distributed, and in places are cut by 
<lykes of eurite ( or "felstone." ) and veins of i|uartz and jtegmatite. The 
more b,i>ic class of rocks is represented by diorites, propylites, ande 
sites, ba<alls, dolerites and gabbros. Ii\teresting cases of the gradual 
jiassai:!' between the so called intermediate and basic rocks are found, 
