[REINECKE] BIBLIOGRAPHY OF CANADIAN GEOLOGY 213 
2. The nature and activity of Canadian glaciers. Canadian Alpine Journ., 
vol. 1, No. 2, 1908, pp. 249-263, 7 pls. 
SHERZER, W. H., and GRABAU, A. W. 
1. New Upper Siluric fauna from southern Michigan. Bull. Geol. Soc. Am., 
vol. 19, Jan. 30, 1909, pp. 540-556, 1 fig. (contains description of Upper 
Silurian strata in Ontario.) 
SHIMER, HERVEY WOODBURN. 
1. Lake Minnewanka section, Alta. Sum. Rep., Geol. Surv. Can. for 1910, 
No. 1170, pp. 145-149, 1911. 
GRABAU, AMADEUS W., and SHIMER, Hervey W. 
1. North American index fossils,—invertebrates. New York, A. G. Seiler 
& Co., 1909, vol. 1, VIII + 853 pp., 1210 figs.; vol. 2, XV + 909 pp., 726 
figs., 1910. 
Crapp, CHARLES H., and Suimer, H. W. 
1. The Sutton Jurassic of the Vancouver group, Vancouver Island, British 
Columbia. Proc. Boston Soc. Nat. Hist., vol. 34, No. 12, Jan. 1911, pp. 
425-438, 3 pls., 2 figs. 
SIMON, A. L. 
1. The Porcupine goldfield. Min. Mag., vol. 3, No. 5, November 1910, pp. 
348-352, 4 pls., 1 map. 
_ SMITH, H. B. 
1. Cobalt, Ontario. Min. and Sci. Press, vol. 96, June 27, 1908, pp. 876-878, 
6 pls. 
SPENCER, JOSEPH WILLIAM WINTHROP. 
1. Niagara Falls and Niagara district. Sum. Rep., Geol. Surv. Can. for 1905, 
French translation, No. 947, pp. 91-96, 1908. 
Report on Niagara Falls. Geol. Surv. Can., No. 970, XX XI + 490 pp., 
43 pls. (including maps), 30 figs., 1 map, 1908; Journ. Geoi., vol. 16, 1908, 
pp. 481-482 (review.) 
3. Recession of the Niagara Falls. Rep. Brit. Ass. Adv. Sci., 77th meeting, 
1908, pp. 572-573. 
bo 
4. Soundings under Niagara Falls and in the gorge. Science, new ser., vol. 
27, April 10, 1908, pp. 587-589 (abstract.) 
5. + Revision of the age of Niagara Falls (abstract.) Science, new ser., vol. 27, 
June 12, 1908, pp. 925-926. 
6. Soundings in Niagara gorge and under the falls. Sci. Am., vol. 99, August 
1, 1908, pp. 76-77. 
