68 
368 Luther (D. D.).. Report cm the geology of the Livonia salt shaft 
[New York]. 
N. Y. State Mus. ; 47th Aim. Kept., pp. 219-324. 
Describes the geologic formations passed through in sinking the 
Livonia shaft to a depth of 1,432 feet and gives the vertical section 
displayed and a list of fossils found at various horizons. 
361) Lyman (Benjamin Smith). Age of the Newark brownstone. 
Am. Phil. Soc, Proc, vol. xxxiii, pp. 5-10. 
Abstract : Am. Geol., vol. xiii, p. 284 (61.). 
Quotes from several descriptions of fossils found at this horizon, 
which indicate that some of these beds may be of Paleozoic rather 
thau of Mesozoic age. 
370 Some new red horizons. 
Am. Phil. Soc, Proc, vol. xxxiii, pp. 192-215, three plates. 
Abstracts: Jour, of Geol., vol. ii, pp. 644-645; Am. Nat., vol. xxviii, 
pp. 878-879. 
Reviews the evidences on which the red horizons east of the Blue 
Ridge have been assigned to the Mesozoic Describes the outcrops in 
Connecticut, New Jersey, Pennsylvania, Virginia, and North Carolina, 
and gives lists of all the fossils found at different localities in these 
States. Considers that certain of these beds may be of Permian age. 
371 Some Coal Measure sections near Peytona, W. Va. 
Am. Phil. Soc, Proc, vol. xxxiii, pp. 282-309, two maps and cross sec- 
tions. 
Describes a large number of exposures of the Coal Measures in this 
region. 
372 The name "Newark" in American stratigraphy. 
Jour, of Geol., vol. ii, pp. 59-61. 
Differs with G. K. Gilbert as to the use of the term "Newark." See 
No. 217. 
M. 
373 McCalley (Henry). Bauxite mining. 
Science, vol. xxiii, pp. 29-30. 
Describes the character and chemical composition of some of the 
Georgia and Alabama bauxite deposits. 
374 McCallie (S. W.). A preliminary report on the marbles of Georgia. 
Ga. Geol. Surv., Bull. No. 1, p. 87. 
Gives a historical sketch of the marble industry, discusses the origin 
of limestones, and describes the marbles of Fannin, Gilmer, Pickens, 
and Cherokee counties, Ga. 
375 McCarn (H. L.). Notes on the geology of the gold field of Cripple 
Creek, Colorado. 
Science, vol. xxiii, pp. 31-35. 
Describes the structure of the ore bodies and discusses the evidence 
as to their origin. 
370' McG-ee (W J). The potable waters of eastern United States. 
U. S. Geol. Surv., 14th Ann. Rept., pt. 2, pp. 1-47, figs. 1-5. 
Describes the occurrence and source of potable waters and the meth- 
ods of obtaining and utilizing cistern water, stream water, ground 
water, and phreatic water supplies. 
