lis lite Aiiierinin ( i eol og iat . KcbiMnin, ihus 
and page after i)age of figures illustrate fairly and often distinctly 
the fossils of the Pennsylvanian rocks. In this respect the work is 
far superior to the author's "Dictionary of Fossils." 
This report is a perfect mine of valuable information to all who 
heed it, whether geologists or not ; while the numerous references 
enable all who desire them to turn to original authorities for the 
details. 
It is much to be regretted that in most of tlie state re|)orts the 
"exigencies of the printing oHice" so often prevent accurate and 
careful publication. In thus writing we formulate no new complaint. 
The fact is notorious and patent. Often detained by the state 
printer till a more convenient season and then luu-ried through be- 
fore tlie next busy time arrives, there is no op])ortunity for full cor- 
rection of errors and for emendation to date of issue. It is conse- 
quently not always just to the author to blame him for either kind of 
fault. The present work is no exception to this rule, and the greater 
l)art of the errors and the many misprints may fairly be set down to 
the causes above mentioned. i^ut there are some for which the 
author must be accountable. For example, the statement on p. 881 
is only partially correct regarding Pxiloplnjton and is quite incor- 
rect regarding (jli/ptodcmfron which was not described by Dawson, 
or from the >siagara, or from Canada. Numerous inaccuracies also 
occur in the account of the fossils of the 8alina grouj). On [). 770 
Scaphaspis is mentioned as a genus. It is the ventral armour of one 
or othei of the genera mentioned in the same seiitence. J'Iccl.rodus, 
Splidijod IIS, {ind TJiflodus (with a Sriij)hoilii!<'' ) are written down as 
teeth. A wrong etymology is assigned to Onrhin^. On p. 772. — No fos- 
sils have been found in tlie Bridgeport sandstone Some other similar 
errors might be noted which one cannot but regret. 
For the work as a whole however, we have little but praise and not 
the least valuable feature is the great almndance of the illustra- 
tions. 
Siir In pn'si'iici' di'fossilcs dans le terrain azalijiwih' Urctai/ia'. ily M. 
Cn.\RLi:s B.\RKois. (Comptes lvendus,T. oxv, No. 6, pp. 326-328, Aug. 8» 
1892.) The high authority of M. Barrois (of the geological survey of 
France and ])rofess.or of geology in the Univei'sity of Lille) and his 
reputation for cautiousness nuike this communication of especial 
interest and imj)ortance. He has found Radiolarian remains in some 
of the pre-Cambrain crystallines of France. The beds containing 
these fossils are thin layers of graphite-bearing quartzyte, which are 
intimately interbedded with gneisses. The (juartzyte consists of 
([uartz grains and graphite plates with some pyrite and feldspars. On 
microscopic examination of thin sections of the quartzyte small circu- 
l;u- i»i- peculiarly outlined bodies were seen amongthe grains of (juartz 
and graphite. These were found to be the remains of Kadiolarians 
very similar to tiiose occurring in certain graptolite schists of 
Bretagne. Tliev have been subjected to the evamination of M. 
