62 The .bncrican Gcolos;ist. juiy. looi. 
Pearson, H. W. 
Oscillations in the sea-level. III. (Gcul. Mag. vol. 8, pp. 253-265. 
June, 1901.) 
Richards, J. W. 
Mohawkite. (Am. Tovn-. Sci., vol. 11, p. 457. June, 1901.) 
Ries, Heinrich, 
Clays and Clay products at the Paris Exposition. 1900. (U. S. 
Geol. Sur.,. (21st Annual Report. Part VI (continued) pp. 365-392. 
1901.) 
Ruedemann, Rudolph 
Hudson River beds near Albany and their Ta.xononiic equiva- 
lents. (Bull. N. Y. State Mus., No.'42, vol. 8, pp. 489-587, pis. i, 2. 
April, 1901.) 
Shattuck, G. B. 
The Pleistocene problem of the North Atlantic coastal plain. 
(Johns Hopkins University circulars, No. 152. May, 1901.) 
Ulrich, E. O. 
Bryozoa. (Md. Geol. Sur., Eocene, pp. 205-221. nls. 59, 60. igoi.) 
Ulrich, E.G. 
Arthropoda. (Md. Geol. Surv., Eocene, pp. 116-121, pi. 16. 1901.) 
Van Ingen, G. 
The Siluric fauna near Batesville, Arkansas.. ( Schl. Mines 
Quart., vol. 22, pp. 318-329. April, 1901.) 
Vaughan, T. Wayland 
Coelenterata. (Md. Geol. Sur., Eocene, pp. 222-231, pi. 16. 1501.) 
Wieiand, G. R. 
Study of some American fossil Cycads, part iv. Microsporangiate 
Fructification. (Am. Jour. Sci., vol. 11, pp. 423-436. June, 1901.) 
Wortman, J. L. 
Studies of the Eocene mammalia in the Marsh collection. Pea- 
body Museum, plate 6, pp. 437-450. June, 1901. 
PERSONAL AND SCIENTIFIC NEWS. 
Prof. H. C. Beeler, of Cambria, W3'0., has been appointed 
state geologist of Wyoming. 
The next meeting of the International Mining Con- 
gress will be held at Boise, Idaho. 
Mr. W. S. Gresley, late of Erie, Pa., has returned to Eng- 
land. His address is Derby, Eng. 
Prof. J. C. Hartzell, of the Illinois Wesleyan University, 
is engaged for the smnmer with the Indiana Geological Survey. 
Prof. C. E. van Barneveld, of Minneapolis, has recently 
made a professional trip to Grand Encampment, \\'yo., and to 
Tintic, Utah. 
