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70 Scientific Intelligence. 
phalus), trom the lower horizon near mead and Cytherea 
(Callista), pee Psammobia from the upper, at Advent Bay, all 
unknown the Arctic seas ; ee a Tiacia, larger than the 
largest ai: He observes that the species Appent to be 
Miocene, or later rather than earlier; and that they do not 
sustain the view put forward by Gardener that the era of the 
Polar flora was Eocene instead of Mioce 
12. Geology of Delaware. ike Sr et “F. D. CuesterR has a 
paper on the geology of the State of Delaware in the volume of © 
the Proceedings of the Jo Misia of Natural Sciences of Philadel- 
phia for 1884, pp. 
13. Lower "Genin on ‘of the Peach Bottom jaa 4 ee be 
York and Lancaster Counties, Pennsylvania.— FRa 
has found fossil plants in these roofing slates and seakehe fain 
Oh in re James Hall’s judgment, of graptolites, which 
tilted, and near the slates, aX apparently above them occurs @ 
quartz-slate, containing, like the Chikis quartzyte, intercalated 
hydromicaceous beds. Th ee are among a series of chloritic 
schists. 
14, Paleozoic Arachnida,—Mr. 8. H. Scuppxr has published a 
revision of the subdivisions of fossil Arachnids in a paper in the 
Proceedings of the American Academy of Arts and Sciences, ae 
15. or E. D. ’ Cope n fossil Vertebrates. —Professor Cope 
has recently published the Retllowns p papers: 
The h American Batrachia, Amer. Nat., January, 1884. 
Synopsis r the Species of the Oreodontide, “Amer. Phil. Soc., 
January, 1 
Siac of the skull a Ss Elasmobranch genus Didymodus, 
Amer. Phil. Soc., March, 1 
The Creodonta, Amer. New, March, 18 
The Tertiary Marsupialia, Amer. N. Pg fi 
The gre Mammalia of the Valley’ of Bee Amer. Phil. 
Soc., May 
The Masud of North America, Amer. Nat., May, 18 
On the Stracture of the feet in the extinct ech of 
North America, Ibid., August, 1884. 
Fifth contribution to the knowledge of the Fauna of the Per- 
mian formation of Texas and the Indian Territory, Amer. Phil. — 
c., August, 1884. 
16. Note on Brazilian Minerals ; by Onvinx A. Dersy.—lo 
