1891.] Progress of American Invertebrate Paleontology. 331 
ports of the Illinois Geological Survey ; Paleontology, pp. 62-151 
of appendix. 
G. F. Mathew has Cambrian Organisms in Acadia ; Transactions 
Royal Society of Canada, Vol. VII., Sec. iv., pp. 135—162. 
A Note on Some of the Causes of Extinction of Species 
appears in the American Geologist, Vol. V., pp. 100-104, by J. M. 
McCreery. 
S. A. Miller has the Structure, Classification, and Arrangement 
of American Paleozoic Crinoids into Families, in the American 
Geologist, Vol. VI., pp. 340-357; and with W. F. E. Gurley, 
Descriptions of Some New Genera and Species of Echinodermata 
from the Coal Measures and Subcarboniferous Rocks of Indiana, 
Missouri, and Iowa, in the Journal of Cincinnati Society of Nat- 
ural History, April, 1890. 
In the AmMEricAN NATURALIST, Vol. XXIII., pp. 261-266, 
Henry F. Osborn gives The Paleontological Evidence for the 
Transmission of Acquired Characters. 
E. N. S. Ringueberg describes some Crinoidea of the Lower 
Niagara Limestone at Lockport, N. Y., in a Annals New York 
Academy Sciences, Vol. V., p. 30 
Charles W. Rolfe has ene and Distribution of the Genera 
of Brachiopoda, in the American Nartura.ist, Vol. XXIII., pp. 
983-998. 
Studies on Monticulipora are given in the American Geologist, 
Vol. VI., pp. 102-121, by C. Rominger. 
R. R. Rowley has some Observations on Natural Casts of 
Crinoids and Blastoids from the Burlington Limestone, in the 
American Geologist, Vol. VI. , pp. 66-67 ; and Batocrinus calvini, 
in same journal, Vol. V. , PP- 146, 147. 
Samuel Scudder has, in the Memoirs of the Boston Society of 
Natural History, pp. 401-472: New Types of Carboniferous 
Cockroaches from Carboniferous Deposits of the United States ; 
New Carboniferous Myriapods from Illinois; Ilustrations of Car- 
boniferots Arachnida of North America, of the Orders Anthraco- 
marti and Pedipalpi ; and Insects of the Triassic Beds of Fairplay, 
Colorado, 
