Author's Catalogue. 195 
Turner, H. W. 
The Geology of the Great Basin in eastern California and south- 
western Nevada. (Jour. Geol., vol. 9, Jan.-Feb., 1901, p. 73 ; Am. Geol., 
vol. 27, p. 132, Feb., 1901.) 
Vaughan, T. W. 
Reconnaissance in the Rio Grande coal fields of Texas. Bull. 
164, U. S. Geol. Sur., pp. 100, pis. 11, 1900. 
Vaughan, T. W. 
The Eocene and lower Oligocene coral faunas of the United States, 
with descriptions of a few doubtful Cretaceous species. Mon. 39. U. 
S. Geol. Sur., pp. 205, pis. 24, 1900. 
Weeks, F. B. 
Bibliography and index of North American geology', paleontologi', 
petrology and mineralogy for the year 1899. Bull. 172, U. S. Geol. Sur., 
pp. 141, 1900. 
Williams, H. S. (and H. E. Gregory) 
Contribution to the Geology of Maine. Bull. 165, U. S. Geol. 
Sur., pp. 212, 1900. 
Williston, S. W. 
Dinosaurian genus Creosaurus. Marsh. (Am. Jour. Sci., vol. 11. 
p. Ill, Feb., 1901) 
Wortman, J. L. 
The probable successors of certain North American primates. 
(Science, vol. 13, p. 209, Feb. 8, 1901.) 
PERSONAL AND SCIENTIFIC NEWS. 
Lake Superior Iron Trade During the Year 1900. 
Considering the fact that the close of the century marks also 
the end of the first half-century of activity in the iron min- 
ing region of lake Superior, the development has been one of 
the most astonishing of this wonderful age. It is a short half- 
century, too, for no mining of importance could be done until 
there was water connection between lake Superior and the east, 
and this did not come until 1855. In that momentous year the 
first ship canal at the foot of lake Superior was cut and the 
Jackson mine began small shipments of ore. For years the in- 
dustry was small, it was the day of 8-ton railway cars or. still 
more primitive, of mule railroads, of 500-ton ships, hand drills, 
black powder, open pit mining and the like. It was the dav of 
beginnings and of small things, in a word. For some years the 
l^roduct of the lake Superior mines was handled over a mule 
tram road to Marquette. Up to ten years later or nearlv to 
1870 a 700-ton ship was an enormous craft and the loading of 
this great ship required two days and its unloading more than 
that. ]\Iany men of today remember sales of ore at Pittsburg 
at $18. or about the price of steel billets now. Instead of the 
