64 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bull. 271. 
Hille (F.)— Continued. 
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Can. Mg. Inst, Jour., vol. 6, pp. 245-287, 1904. 
Discusses the geologic data bearing upon the presence and amount of iron or< 
north of the International Boundary in this region, the character, occurrence 
classification, and nomenclature of Archean and Algonkian formations, thi 
origin, constituents, and metamorphisni of their rocks, and the origin of th< 
iron ores. 
Hillebrand (W. F.). 
1. Ernmonsite (?) from a new locality. 
Am. Jour. Sci., 4th ser., vol. 18, pp. 433-434, 1904. 
Describes- the occurrence, optical and other characters, and chemical compo 
sitionofa mineral, provisionally regarded as ernmonsite, from Cripple Creek 
Colorado. 
Hillebrand (W. F.), Lindgren (Waldemar) and. 
1. Minerals from the Clifton-Morenci district, Arizona. 
See Lindgren (Waldemar) and Hillebrand (W. F. ), 1. 
Hillebrand (W. F.), Schaller (W. T.) and. 
1. Crystallographical and chemical notes on lawsonite. 
See Schaller ( W. T. ) and Hillebrand ( W. F.) , 1. 
Hind (Wheelton). 
1. The type of Avieulipecten. 
Am. Geol., vol. 34, pp. 200-201, 1904. 
Hitchcock (A. S.). 
1. Controlling sand dunes in the United States and Europe. 
Nat. Geog.Mag., vol. 15, pp. 43-47, illus., 1904. 
Hitchcock (C, H.). 
1. New studies in the Ammonoosuc district of New Hampshire. 
Geol. Soc. Am., Bull., vol. 15, pp. 461-482, 3 pis., 1904. 
Describes the occurrence, with lists of forms identified, of Silurian fossils, ar ;j 
the occurrence, characters, and geologic relations of Silurian and perhai 
other Paleozoic sedimentary strata, in large part metamorphosed, and 
igneous rocks. The paper includes a description of Dalmanites lunatus \ | 
Avery E. Lambert. 
2. Glaciation of the Green Mountains. 
Montpelier, Vt., Argus and Patriot Press, 1904. 21 pp. [Private publication » 
Describes various evidences of glacial action upon high summits in the Grei i 
Mountains in Vermont and the Adirondack^ of New York, and discuss^: 
glaciation in New England and New York. 
3. Glaciation of the Green Mountain Ran ore. 
Vt. Geol Surv., Rept. State Geol., IV., pp. 67-85, 1904. 
Hobbs (William Herbert). 
1. Lineaments of the Atlantic border region. 
Geol. Soc. Am., Bull., vol. 15, pp. 483-506, 3 pis., 4 figs., 1904. 
Describes the orientation of earth lineaments, namely, mountain ranges, ridgi ; 
borders of plateaus, drainage lines, coast lines, boundary lines of geoloj i 
formations, fall lines, boundaries of physiographic provinces, etc. 
