6834 Review of North American Palæontology. 
taining Descriptions and Figures of Species from the Lower Hel- 
derberg, Upper Helderberg and Hamilton Groups. Albany, N. 
Y.: Charles Van Benthuysen & Sons, 1887, 4to, pp. L-XXVI. 
and 1-298. Pls. I-LXVI. Errata 1 lf.; James Hall publishes 
Geological Survey of the State of New York. Paleontology: 
Vol. V., Part I. Lamellibranchiata II. Text and Plates. Con- 
taining Descriptions and Figures of the Dimyaria of the Upper 
Helderberg, Hamilton, Portage and Chemung Groups. Albany, 
N. Y: Charles Van Benthuysen & Sons, 1885, 4to, pp. I.-LXII. 
and 269-561. Pls. XX XIV.-XCVIL.; publishes “Note on Some 
Obscure Organisms in the Roofing Slates of Washington County, 
' New York” in Thirty-ninth Ann. Rep. Trustees Sta. Mus. Nat. 
Hist. for 1885, p. 160; he has “ Note on the Discovery of a Skele- 
ton of an Elk ( “Elaphus canadensis” ) in the town of Farmington, 
Ontario County” in Sixth Ann. Rep. State Geologist for the Year 
1886, p. 39; he has “Note on the Occurrence of the Dictyospon- 
gide in the State of New York” in Sixth Ann. Rep. State Geolo- 
gist for the Year 1886, p. 36; he has “ Report of the State Geolo- 
gist” in Thirty-ninth Ann. Rep. Trustees Sta. Mus. Nat. Hist. for 
1885, p. 226. 
Angelo Heilprin has “Additions to the Floridian Fauna” in 
Trans. Wagner Free Institute of Science, Vol. I., p. 129; he pub- 
lishes “Determination of the Age of Rock Deposits” in Proc. 
Acad. Nat. Sci. Phila., Part III., p. 395; in same, p. 314, he pub- 
lishes “The Classification of the Post-Cretaceous Deposits”; he 
publishes “The Geographical and Geological Distribution of Ani- 
mals” in the International Scientific Series, p. 1. 
C. L. Herrick publishes “ Additional Fossils from Coal-Measures 
at Flint Ridge” in Bull. Sci. Laboratories Denison University, 
Vol. IIL., Parts I. and II., p. 144; in same, p. 51, he has “ Appen- 
dix I. Notes on Carboniferous Trilobites”; on page 69 he has 
“ Appendix II. A Waverly Trilobite. A Sketch of the Geological 
History of Licking Co., Ohio, accompanying an Illustrated Cata- 
logue of Coal-Measure Fossils from Flint Ridge” ; in same, on p» 
5, he has “A Sketch of the Geological History of Licking Co, 
Ohio, accompanying an Illustrated Catalogue of Coal-Measure 
Fossils from Flint Ridge.” 
Henry Hicks, in Geol. Mag., New Ser., Dec. II., Vol. IV., P 
155, has “ The Cambrian Rocks of North America.” 
