BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 139 
Munk, J. A. 
1776. The meteorite mountain riddle solved. — Los Angeles Journal of Eclectic 
Medicine, vol. 3, no. 9, pp. 187-190, September, 1906. 
Describes the Coon Butte, Arizona, and presents the arguments advanced to show- 
that the crater is the result of impact of a huge meteorite. 
Munn, M. J. 
Geology of the oil and pis fields in Steubenville, Burgettstown, and Clays- 
ville quadrangles, Ohio, West Virginia, and Pennsylvania. — See Griswold and 
Munn, no. 1048. 
Murphy, T. D. 
1777. The mines of El Doctor [Mexico]. — Min. and Sci. Press, vol. 95, pp. 
241-245, 4 figs., August 24, 1007. 
Includes notes on the geology and the occurrence of the lead-silver ores. 
Murgoci, G. M. 
1778. Suggestion as to the origin of riebeckite rocks. — Geol. Soc. America, 
Bull., vol. 16, pp. 575-576, 1000. 
1779. I. Contribution to the classification of the amphiboles. II. On some 
glaucophane schists, syenites, etc. — California Univ., Dept. Geol., Bull., vol. 4, 
no. 15, pp. 359-396, figs., 1000. 
Discusses the properties and relations of the amphiholes of the glaucophane schists 
and descrihes the composition of the glaucophane schists studied. 
Murray, J. C. 
1780. Prospectng in Ungava. — Canadian Min. Jour., vol. 28 (new ser., 
vol. 1), pp. 100-112, 148-140, 173-174, 11 figs., 1007. 
Includes notes on the geology. 
Muscovici, Armand. 
1781. ISotes on a deposit of nickeliferous pyrrhotite at Malachite Point 
[Quebec].— Canadian Min. Inst.. Jour., vol. 9, pp. 221-222, 1000. 
Nagant, II. 
1782. Rare earths in the Province of Quebec. — Quebec, Dept. of Coloniza- 
tion, Mines, and Fisheries. Mining Operations for 1005, pp. 30-4.°>, 1908. 
Includes notes on the occurrence of rare minerals in the Province of Quebec. 
Naramore, Chester. 
The production of gold and silver in 1906 in Colorado, New Mexico. South 
Dakota, and Wyoming. — See no. 2419. 
Narraway, J. E., and Raymond, Percy E. 
1783. A new American Cybele. — Carnegie Mus., Annals, vol. 3, no. 4. pp. 599- 
604, 1 fig., 1006. 
Nason, Frank L. 
1784. Limestones associated with pyrites and pyrrhotite <>!' the Appalachian 
system. — Eng. and Min. Jour., vol. 82, pp. 170-172, July 28, 1906. 
Discusses the relations of the pyrite ores to the associated limestones. 
Nattress, Thomas. 
1785. The geological continuity of Essex and Kent counties, Ontario, and 
Monroe and Wayne counties, Michigan. — Michigan Acad. Sci., Ninth Kept-. PP- 
177-1 84, 5 figs., 1007. 
Navarro, D. V. 
1786. Le cobalt dans l'Etat de Jalisco.— Soc. cient. -'Antonio Alzate." Mem. 
y Rev., t. 25, no. 2, pp. 51-57, August. 1007. 
Describes the local geology and the occurrence of coball mi Plhiinrao, Jalisco, Mexico 
