DONS. — 
3 N0V.-Î5 DÉCEMBRE 1879. 
27 
— New-York Academy of Sciences. Armais of the — , t. I. r.O' 1-8; 
1877-78. 
Herman L. Chairfîld. — On tho structure of Lepidodondron and Sigillaria. 1 : 
On the variation of the decorticated Leaf-scars of certain Sigillanœ, 41. N° 2 : On 
the variations of the Leaf-scars of Lopidodendrcn aculeatum, Sternb., 77. N'^ 3 : The 
identity of Certain Supposed Species of Sigillaria with S. lepidodendrifolia, Brgnt, 
129. 
S. T. Barrett. — Description of New Species of fossils from the Upper Silurian 
Rocks of Port Jervis N. Y. ; with notes on the occurrence of the Coralline limestone 
at that locality, 121. 
J. S. Newberry. — Description of nev,^ fossil fishes from the Trias, 127; — Des- 
cription of new Pateozoïc fishes, 188. 
Israël C. Russel. — The physical -history of the Trias of New-Jersey, and the 
Connecticut Valley, 220. 
Plîiladelpliia. Academy of natural sciences of ~. Journal of the — , 
2^sér., t. Vif. 
F. V. Hayde.n. — Geology cf the tertiary formations of Dakota and Nebraska. 
Jos. Leydy. — The extinct Mamraalian fauna of Dakota and Nebraska, including 
an account of some allied forms from other locaHties together with a Sinopsis of 
Mammahan remains of North Ame.ica. 
Proceedings of the — ; i87i, ip^ 1-3. 
Edw. Cope. — On the âge of the lignite beds'of Missouri river, 10, 12; — On the 
crania of Symborodon, 89; — On the pelvis of Hadrosaurus, 91; — On a species 
of Ctenodiis from Ohio, 91; — On a new Mastodon and Rodent, 221 ; — On the cha- 
racters of Sijmborodon, 224. 
Jos. Leydy. — Extract from a letter relating to Mammahan fossils in Cahfornia, 18 ; 
— Notice of remains of TitanothTiiim, 165; — Remarks on fossils presented by S. 
Edw. Cope, 223. 
Conrad. — Remarks on the tertiary clay of the upper Amazon, with descriptions of 
New" shtlls, 25; — Description of two new fossil shells of the Upper Amazon, 82. 
Holdsmith. — Analysis of Graphite from Whyte County, 77. 
Persiflor Frazer. — On the Geology of Pilot Knob Iron mountains and Mine la 
Mote, 85. 
B. Waterhouse Hawkins. — On the pelvis of Iladrosaurus, 90. 
Persiflor Frazer. — On the geology of certain lands in Puchtie and Tyler Counties 168; 
Id.,1878, n»s î-3. 
White. — Descriptions of now Species of Inverfebrat^ fossils from the Carbonife- 
rous and Upper Silurian Rocks of Illinois and InJiana, 29. 
Jos. Leidy — On Citrine or Yellow Quartz. 40. 
Kœnig. — Black Barite from Derbzshire, 99; — Mineralogical Notes; Randite, 408. 
Goldsmith. — Stibianite, a nov/ minerai, 151; — Stalîelite from Pike's Peak, 
Col., 156. 
Jos. Wilcox. — Prohistoric remains, 158; — Note on CoriDiduni. 159; — Coran- 
dum m North Carolina, 223. 
Wachsmuth, Chas, aud Frank Sprini^or. — Ti-ansition forms in Crinoïds and Des- 
cription of five New Species, 221. 
