1891.] : Recent Books and Pamphlets. 133 
Cross, W., and L. G. peU —On Ptilolite, a New Mineral. Ext. Am. Jour 
Sci., Aug., 1886. From Whitman Cross. 
Dana, J. D.—Volcanic pet Ext. Am Jour. Sci., Feb., 1887.—A Dissected Vol- 
canic Mountain; Some of its Revelations. Ext. dm, Jour. Sci., Oct., 1886. . From the 
author. 
DAWSON, W. J., and G. J. HINDE.—New Species of Fossil Sponges. Ext. Canadian 
Record wy ome 1888. From the authors 
DoLLo, L.—Troisiéme Note sur les Dincensdenn de Bernissart. Extrait du Bulle 
du Musée Royal de Belgique, 1883. 
— Notes sur les Vertébrés Fossiles, Récemment Efferts au Musée de sa 
par M. Lemmonier. Extrait du Bull. de la Société Belge de Geol., 1889. Fro 
author. 
NN, C. H., and R. S. EPEE =A wee of the South American 
cena, or Cat-Fishes. Proc. Cal. Acad. Sci., July From the authors. 
EUDES-DESLONGCHAMPS, E.—Notes cane poset sur les Fossi 
Oxfordiens de la Collection Jarry. From the author 
F w, W. G.—The Task of American Bot airiai. Ext. Popular Sci., July, 1887. 
FRAZER, P.—The Horizon of the South Valley Hill Rocks in Pennsylvania. Read 
before the Am. Philos. Soc 15, 1882. 
——The Philadelphia Maig of the International Congress of Geologists. Ext. 
Am. sc ap 1890. From the author. 
N, S.—Reptiles and Batrachians from the Caymans and from the Bahamas. 
Bull. Eset ost, oa o Dec., 1888. From the author. 
TE te , Endings, and Relations of Striated Muscular Fibres in the 
M tee of Minute shana (Mouse, oe Bat, and English Sparrow). Ext. from The 
Microscope, Aug., 1888. From the a 
GEINITZ, H. B.—Ueber die sin ph bunten Mergel der oberen Dyas bei 
Manchester. Ges. Isis in Dresden, 1889. From the author 
GILL, T.—On the Psychrolutidæ of Günther. Ext. Proc. U. S. Nat. Mus., 1888. 
From the author. 
- HALSTEAD, B. D.—Notes upon Stamens of Solanac Ext. Bot. Gaz., aws" 
1890.—Rusts, Smuts, Ergots, and Rots. pees before N. J. Board of Agri 
Jan. 31, 1890. From the author. 
HANSTEIN, J.—Christian Gottfried peek ein Tagework, aui dern Felde der 
rschung te : 
HEILPRIN, A.—The Animal Life of Saas From J. a So & Co. 
HEINRICH, C. F.—Death from Electrical Currents. From the 
JaMEs, J. F.—A Cave in the Clinton Formation of Ohio. xi Jen Cin. 
Nat. Hist., May, I 
Soc. 
On the hanet Shales, and their Correlation with the Cincinnati Group of 
oo Ohio. Postscript to above Article. Exts. Am. Geol., 1890. From the 
Beka. J. S—The Development of Crangon vulgaris. Third Paper. Bull. 
Essex Institute, Jan., Feb., March, 1889. From the author. 
Lawson, A. C.—Note on the Pre-Palesoic Surface of the Archean Terranes of 
T LECHE, W.—Uber einige E stadien der Hypophysis cerebri. Ext. Proc. 
fos 
: TERSA EER on the Ohio. Ext. Am. Antiguary, May, 1889. 
