'{J*'^ III' Alinrtid II iimhufist. D.cinil). r. IS'.t;. 
Fiixxil liixiiis; lly ('l,Al!KN(K ].(»\\ N :iii(l HKNItv IJoniii, New York. \. 
1). C. Jlodjjes, ]8'.H, pp. XVy and ll!l.— 4 plates. 
Messrs. [iOwri ami JJooth have made a very creditable compilatloii <>f 
tlie literature oi this subject. They cite aud describe eight autlioritiec 
from 181(i to I87(i. They havt- apparently collected all the availabb- 
literature and one is surprised with tiie result; a score or so of i)apers ami' 
no iiwn. It seems almost incredible that so lascinatinir a subject should 
have received so small a share ol' attention. The lack of material nmy 
no doubt be responsible for tliis. The typography of tlie book is ev- 
• eedingl}' bad. 
GeoIof/lctiJ E.ifiirseiuns; 18G0 1800. London, Kdwakd Stamokd. isitl,. 
pp. 571, tig. in text. 
This valuable book, " A Record of Excursions of the English Ge(d 
ogists' Association made between 18(10-1890,"' is ably edited by Messrs. 
Tnos. V. IIoi,.MKs, F. G. S., and C Daviks Sukiusokn, F. <;. S. The 
membership of this association is not only composed of professional 
geologists but also of all persons who find pleasure in the various ex- 
cursions wliich the Associati(m takes year by year for the purpose of 
studying some section of country under the guidan('e t)r some local i)ro 
fessional geologist. The i)resent work is one descriptive of these variou.>> 
excursions and contains a brief account of the geology of each place visited . 
Xeir nii/irruls fnnii the Scrjiiiif/iir Hell nl Enxtmi, I'li.: IJy .Iuiin i-l^ kij- 
M.vx. ( Acad. Xatl. Sci., Phila. Oct. 20, 18U1.) 
The author annoimces the discovery of a number of minerals Irom the 
line of contact between the Serpentine rocks aud the Calciterous ( V) 
limestone near Easton, Penn. Ten minerals not heretofore known from 
this locality are described, of which toi)az, hydromagnesite, chalcopy- 
rite aiul graphite are the most important. 
LIST ()v \\vA:\:yT ih;hi;ic:a.tio^'^s. 
I\'. /•'.mrpfs mid Tiiiliiu'iJiiiil I'lihliniliuiis. 
FnHii .lapaii to <iranada: Sketches of ObservatiiMi and Imnruy iu .^ 
Pour Round tlie W<n-ld in 1887-8. By.I.H. Chapin. New York, 1889 
A ^lemorial Addr<>ss on tlie Life and Services of Alexander ^Vinchell. 
By M. W. llarrlugfon. Published by the I'liiversity of Michigan. 1891. 
Stones for litiildiiig ami Decoration. IJy George I*. Merrill. New 
York, 1891. 
A Sketch of the Physical (Jeography of Iowa, by R. E. (all. From 
Ann. Rep. Iowa ^Veatiler and Crop Servit-e for 1890. 
