770 The American Naturalist. [August, 
In an address to the Cambridge Entomological Club, Jan. 10, 1890, 
Mr. S. H. Scudder gave the following brief résumé of recent knowl- 
edge of Mesozoic insects : 
*'The horizon has been extended of late years by the thorough 
discussion of the Bavarian insects by Deichmiiller and by Oppenheim; 
by the careful exploitation of a new locality for Triassic insects at Dob- 
bertin, Germany, by F. E. Geinitz; by the considerable number of 
new generic and specific types of cockroaches from the secondary rocks 
of England, described by myself; by the repeated though not 
extensive discoveries of Fritsch in Bohemia, adding interesting material 
for our very meager knowledge of Cretaceous insects; and by the dis- 
covery at Fairplay, Colorado, of a collection of Triassic cockroaches of 
special importance.’’ 
Palzozoic.—According to C. R. Keyes the remnants of an ex- 
ceedingly rich and varied fauna that once tenanted the littoral zones 
of a vast Carboniferous sea, are found in the vicinity of Burlington, 
Iowa. The Gastropods of the Kinderhook beds include upwards of 
fifteen genera and fifty species. But only two of the generic groups, 
Platyceras and Straparollus, have thus far been recognized in the 
Burlington strata, in which there occur eight species of the first genus 
and two of the second. (Proc. Phila. Acad. Sci., Sept. 1889.) 
S. A. Miller and F. E. Gurley have described (Jour. Cin. Soc. Nat. 
Hist, April, 1890) some fine Crinoids from the Coal Measures and 
sub-Carboniferous rocks of Indiana, Nevada, and Iowa. A new family 
name, Eupachycrinidz, is made to include the genera Eupachycrinus 
and Delocrinus, each containing two new species, and Ulocrinus, con- 
taining three. The remaining 45 new species are referred to 21 genera, 
of which four are new. This paper embraces more important novelties 
than any one recently published. It is well illustrated. — 
In the Quart. Jour. Geo. Soc., May, 1890, two new species of 
Rhachitomous Stegocephali are described and figured by R. Lydekker, 
viz.: Macromerium scoticum, from the Carboniferous of Scotland ; 
vs owenit, from the Karoo system of South Africa. The latter is 
the first representative of the North American Stegocephali found at 
the Cape. 
W. B. Dwight has demonstrated from fossils collected in that region © 
that the Calciferous is one of the most prominent components of the 
Millerton-Fishkill limestone belt. 
Czenozoic.—In a paper entitled Structure and Origin of Glacial 
Sand Plains (Bull. Geol. Soc. Am., 1890) W. M. Morris states that 
