ot 
BS 
eS 
Geology. 285 
confirm what I have already announced that no dolomite is formed in 
perim 
Charles Deville, and appealed to by Prof. Phillips in his last Annual Ad- 
dress to th 
4 amixture of the moist amorphous carbonates (such as is obtained by 
ew Paleozic Fossils ; by J. H. McCuesyey. Chicago, 1859. 
§vo. pp. 64. In this publication the following species from the Carbon- 
ee 
lenuisculptus, A, subequalis, A, Fosteri, A. subventricosu 
is 
bosa, Athyris spiriferoides, A. orbicularis, A. differentius, 
tula tnornata, Rhynchonella Eatonieformis, R. explanata, R. 
a, 4. Algeri, Trematospira Mathewsoni, Discina caputiformia, 
lameuurancuiata—Leda Oweni, L. gibbosa, L. polita, Nucula 
~ Pinna Adamsi, Syringopora multatienuata, Cyathoxona prolifera, 
_ASTEROPODA.— Bellerophon ellipticus, B. vittatus, B. Blanyana, B. Ste- 
beige Pleurotomaria Beckwithana, P.nodomarginata, Natica Shu- 
LN 
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Platyceras crytolites, Platyostoma Peoriensis, Bucania Chicagoensis, 
HALOpopa.— Nautilus Forbesianus, NV. Iilinoiensis, NV. quadrangu- 
i -nodocarinatus, Gonitites Hathawana, Cyrtoceras (Lituites ?) gigan- 
dh rochoceras Desplaniensis, Orthoceras Rushensis, O. Knozensis. 
the gt Pogtaphy of this brochure is very good, and the descriptions of 
; et 
ie i Pepresent to the student a much less formidable array of difficulties, 
; the mtologists would on all occasions give accurate measurements of 
. tein they describe. Throughout this book, for instance, the size 
: i 
ton,” ag by sharp rugose radiating strie increased by implanta- 
itso have a great many other Orthides, and until some standard 
. tho Parison is furnished, all the students of this book, except those 
a pon - ve access to the original specimens, must remain in doubt 
: q%estion as to whether there are ten or twenty striz in the width 
