774 ALEXANDER N. WINCHELL 



such as Pumpelly's melaphyre from Bed 64, Van Hise's Gogebic 

 County diabase, and Lane's ophite from the property of the St. Mary's 

 Land Company, and from Mt. Bohemia. 



REFERENCES TO TABLE III 



1. A. Streng and J. H. Kloos, N. J. Mineral, 1877, p. 48, 117; A. Streng, 

 analyst. 



2. R. Pumpelly, Proc. Am. Acad., Vol. XIII, p. 285, 1878; R. W. Woodward, 

 analyst. 



3. E. T. Sweet, Geol. Wis., Vol. Ill, p. 350, 1880; E. T. Sweet, analyst. 



4. M. E. Wadsworth, G. N. H. S. Minn., Bull. 2, pp. 75, 97, 1887; Dodge 

 and Sidener, analysts. 



5. M. E. Wadsworth (H. B. Patton), Geol. Surv. Mich., Ann. Rep., 1891, 

 pp. 134, 141, 1893; F. F. Sharpless, analyst. See also Geol. Surv. Mich., 

 Vol. VI, Pt. I, pp. 250, 265, 1898. 



6. C. R. Van Hise, U. S. G. S. Man., XIX, p. 357, 1892; T. M. Chatard, 

 analyst. 



7. N. H. Winchell, G. N. H. S. Minn., 21 Ann. Rep., p. 151, 1893; A. D. 

 Meeds, analyst. 



8. W. S. Bayley, U. S. G. S., Bull. 109, pp. 58, 90, 1893; L. G. Eakins and 

 J. E. Whitfield, analysts. 



9. W. S. Bayley, Am. Jour. Sc, Vol. XXXVII, pp. 59, 61, 1889; W. F. 

 Hillebrand, analyst. 



10. W. S. Bayley, Jour. Geol., Vol. I, p. 712, 1893; H. N. Stokes, analyst. 



11. W. S. Bayley, Jour. Geol., Vol. Ill, p. 10, 1895; H. N. Stokes and W. H. 

 Melville, analysts. 



12. A. C. Lane, Geol. Surv. Mich., Vol. VI, Pt. i, p. 215, 1898; F. P. Burrall, 

 analyst. Dr. Lane calls attention to the fact that the titanium was not 

 determined in analysis No. VII; if i .5 per cent. TiOa was weighed with the 

 AI2O3 the classification would be changed from hessose to auvergnose. 



13. L. L. Hubbard, Geol. Surv. Mich., Vol. VI, Pt. 2, p. 28, 1898; F. P. Bur- 

 rall, analyst. 



14. Ibid., p. 42. 

 i5- Ibid., p. 26. 



16. Ibid., p. 25. 



17. A. N. Winchell, Am. Geol, Vol. XXVI, p. 374, 1900; A. N. Winchell, 

 analyst. 



18. A. N. Winchell, Jour. Geol., Vol. XVI, p. 772; George Steiger, analyst. 



19. A. C. Lane, Geol. Surv. Mich., Ann. Rep., 1904, p. 154, 1905; L. Kirsch- 

 braum, analyst. 



20. A. C. Lane, Geol. Surv. Mich., Ann. Rep., 1903, p. 244, 1905; E. E. Ware, 

 analyst. 



21. A. C. Lane, Proc. L. Sup. Mg. Inst., Vol. XII, p. 85, 1906; F. K. Ovitz, 

 analyst. The "red rock dike" of analysis No. 12 is called gabbro-aplite 

 by the author in Geol. Surv. Mich., Ann. Rep., 1903, p. 236. Analysis 

 No. 9 of "ophite" is now referred to "oligoclase gabbro" by F. E. Wright 

 (letter from A; C. Lane). 



