60 The American Geologist. juiy, i89i 
IV. Excerpts and Individual Publications. 
Com position of the till or boulder-clay, by W. O. Crosby. Pro. Bos. 
Soc. Nat. Hist. Vol. XXV, 1890. 
The Madison boulder, by \V. O. Crosby. Appalachia, Vol. VI, No. 1. 
The Kaolin in lilandford, Mass., by W. O. Crosby. Tech. Quart., Vol. 
III, Aug. 1800. 
A new plesiosaur from the Niobrara Cretaceous of Kansas, by S. W. 
Willislon. 
A revision of the Cretaceous Echinoidea of North America, by William 
B. Clarke. Johns Hopkins Univ. Cir., No. 86. 
Angleslte, cerussite and suphur from the Mountain View lead mine, 
near Union bridge, Carroll county, Md., by Geo. H. Williams. Johns 
Hopkins Univ. Cir. No. 87. 
Time-reckoning for the twentieth century, by Sanford Fleming, C. M. 
G., L. L. D., C. E., etc. Smithsonian Rep. 188(3. 
Elementary geology, by Chas. Bird, F. G. S., pp. 248, 12mo. Long- 
mans, Green & Co., London. 
Descriptions of some new species of fossils from the Devonian rocks of 
Manitoba, by J. F. Whiteaves. Trans. Roy. Soc. Can. Vol. VIII, Sec. 
IV. 1890. 
Illustrations of the fauna of the St. John group. No. V., by G. F. 
Matthew. Trans. Roy. Soc. Can. Sec. IV, 1890. 
The history of volcanic action in the area of the British Isles, being 
the anniversary address to the geological society of London on Feb. 20, 
1891, by Archibald Geikie, F. R. S., President ; Quar. Jour. Geol. Soc. 
London. Vol. XL VI I. 
Foraminlfera and Radiolaria from the Cretaceous of Manitoba, by 
Joseph B. Tyrrell, M. A., B. Sc. Trans. Roy. Soc. Can. Vol. VIII, Sec. 
IV, 1890. 
V. Foreign Publications. 
Annales de la Soceite G6ologique du Belgique. 1890. Tomes XVI 
and XVII. 
Records of the Geol. Sur. New South Wales, Vol. II, Parts I and II, 
1890. Dept. of Mines, Sydney. 
The Mesozoic and Tertiary insects of New South Wales, by R. Ethe- 
ridge, Jr., and A. Sidney Oliff. Memoirs of the Geol. Sur. New South 
Wales, C. S. Wilkinson, F. G. S., geological surveyor-in-charge. Dept. 
of Mines, Sydney. 
Verhand. d. naturhist. Ver. (Bertkan), Bonn, 1890, zweite Halfte, 
contains : Ueber den Rhein in romischer und vorgeschichtlicher Zeit, 
Schaaffhausen ; Ueber die Braun Rohlenablagerungen im niederrhein- 
ischen TertiJirbecken, Hensler ; Ueber die Goldfeldor Siklafrikas, A. 
Scheuk ; Ueber alte Eisthotigkeit und Gcbirgshildung in Skandinavien, 
Polilig : Ueber A Schenk, Glacialerscheinungen in Siidafrika ; und 
Ueber die carbone Eiszeit. Rauff ; Ueber die Quecksilberlagstatte von 
Almaden, grosster Silberkrystall, Rohlig. 
Vorhand. d. nat. forsch. Gesellschaft in Basel ; Band IX, Heft I, 
1890, contains : Beitrag zur Keuntniss der Tertiarbildungen der Umge- 
bung von Basel, A. Gutzwiller. 
