328 The American Naturalist. 
Helderberg Group, p PP. 238—240, I plate; Koninckia and Related x 
Genera, pp. 211—219, I plate; and On the Development of the 
Shell in the Genus Tornoceras Hyatt, pp. 71-75. ; 
` L P. Bishop communicates a note on A New Locality of e - 
Silurian Fossils in the Limestone of Columbia County, N. Y. to : 
American Journal of Science, Vol. XXXIX., pp. 69-70. i 
Samuel Calvin describes Some New Species of Paleozoic Fos- 
sils, in the Bulletin of the Laboratories of Natural History of the 
State University of Iowa, Vol. I., 173-181, 3 plates; also, Note 
on a Specimen of Conularia missouriensis Swallow with Crenu- 
lated Costa, in American Geologist, Vol. V., pp. 207-208, i 
E. J. Chapman has some Remarks on the Classification of the 
Trilobites, with Outline of a New Grouping of These Forms; 
Transactions Royal Society of Canada, Vol. VII., Sec. vi, ee 
113-120. ` 
William B. Clark notes the occurrence of certain fossils, in a 
Third Annual Geological Expedition into Southern Maryland and 
Virginia ; Johns Hopkins University Circulars, No. 81, pp. 6919 
J. M. Clarke has: As Trilobitas do Grez de Ereré e Maecurt 
Estado do Pará, Brazil, in the Archivos de Museu Nacional e 
Rio de Janeiro, Vol. IX., pp. 1—57, two plates. * 
E. W. Claypole considers a new form of crustacean in i 
Paleontological Notes from Indianapolis; American Geologist : 
Vol. VI., pp. 255-260. i 
F. W. Cragin, in the Bulletin of Washburn College, Vol. IL, 
pp. 65-68, has Contributions to the Paleontology of the Plains. 
Coral and Coral Islands (third edition), by James D. Dana, has 
appeared, with considerable new material added. The author also 
has a note on fossils in the Taconic limestone belt at the west 
foot of the Taconic Range in Hillsdale, N. Y., in American Jour 
nal of Science (3), Vol. XL., pp. 256, 257. 
William H. Dall contributes to the knowledge of the Te- 
tiary Fauna of Florida ; Transactions of the Wagner Froe p 
tute of Science, Vol. II. , pp. 1—200, 12 plates. : 
J. William Dawson be A Note on a Fossil Fish and 
Worm Found in a Pleistocene Nodule in Green’s Creek, Oua 
in Canadian Record of Science, Vol. IV., pp. 86-88 ; On RiT 
