257.

1880-Dana (J. D.). Part of Western Cortlandt.

Accompanying "Geological relations of the limestone belts of Westchester County, New York." Amer. Journ. Silliman, 3d series, Vol. XX, p. 195. New Haven, 1880.

Black etching.

258.

1880-Dana (J. D.). Limestone areas of Westchester County. Scale, 3 miles to the inch.

Accompanying "Geological relations of the limestone belts of Westchester County, New York." Amer. Journ. Silliman, 3d series, Vol. XX, Plate V. New Haven, 1880.

In one color and black etching.

259.

1880-Dana (J. D.). Geological map of part of New York and New Jersey, from Prof. G. H. Cook's map of New Jersey. Scale, 10 miles to the inch.

Accompanying "Geological relations of the limestone belts of Westchester County, New York." Amer. Journ. Silliman, 3d series, Vol. XX, Plate IX. New Haven, 1880.

Black etching.

260.

1880-Dana (J. D.). Limestone areas of Dutchess, Westchester, and Putnam Counties, New York, and of part of Western Connecticut, with the Archæan of Putnam County, and the Palisade Trap range. Scale, 10 miles to the inch.

Accompanying "Geological relations of the limestone belts of Westchester County, New York." Amer. Journ. Silliman, 3d series, Vol. XX, Plate VIII. New Haven, 1880.

1881-Abbott (C. C.). Map of area of Trenton gravel in vicinity of Trenton, N. J.

Accompanying "Primitive industry; or illustrations of the handiwork in stone, bone, and clay of the native races of the Northern Atlantic seaboard of America." p. 531. Salem, 1881.

262.

1881-Britton (N. L.). A geological map of Richmond County, New York. Scale, 1:120,000.

Accompanying "On the geology of Richmond County, New York." Ann. New York Acad. Sci., Vol. II. Plate XV, p. 161. New York, 1881.

263.

1881-Cook (G. H.) and Smock (J. C.). Geological map of New Jersey. Scale, 6 miles to 1 inch.

Accompanying "Geological Survey of New Jersey." Annual report of the State Geologist for the year 1881. Trenton, 1881.

A well-executed and clear geological map.

264.

1881-Dana (J. D.). Geological map of southern Westchester County and northern New York island. Scale, 2 inches to 1 mile.

Accompanying "Geological relations of the limestone belts of Westchester County, New York." Amer. Journ. Silliman, 3d series, Vol. XXI, Plate XIX. New Haven, 1881.

In one color, and geological indications.

265.

1881-Dana (J. D.). Part of Western Cortlandt.

Accompanying "On a case in which various massive crystalline rocks, including soda-granite, quartz-diorite, norite, hornblendite, pyroxenite, and different chrysolitic rocks, were made through metamorphic agencies in one metamorphic process. The Geological Magazine, 2d series, Vol. VIII, p. 60. London, 1881.

Accompanying "Geological relations of the limestone belts of Westchester
County, New York. Origin of the rocks of the Cortlandt series." Amer.
Journ. Silliman, 3d series, Vol. XXII, p. 112. New Haven, 1881.
Black, with geological indications.

267.

1881-Dana (J. D.). Map of parts of New York and New Jersey. Scale, 10 miles to 1 inch.

Accompanying "Geological relations of the limestone belts of Westchester County, New York. Origin of the rocks of the Cortlandt series." Amer. Journ. Silliman, 3d series, Vol. XXII, p. 106. New Haven, 1881.

Black etching.

268.

1881-Dana (J. D.). Map of part of western Cortlandt, showing the Peekskill, Verplanck, Tompkins, Cove, and Cruger limestone areas, by horizontal lining. Scale, 1 inch to a mile.

Accompanying "Geological relations of the limestone belts of Westchester County, New York. Origin of the rocks of the Cortlandt series." Amer. Journ. Silliman, 3d series, Vol. XXII, p. 107. New Haven, 1881.

Black etching.

All these small maps by Mr. J. D. Dana are sketch-maps with geological indications.

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IX. PENNSYLVANIA, DELAWARE, AND MARYLAND.

269.

1822-Cist (Z.). Range of the anthracite formation of Pennsylvania. Accompanying "Account of the mines of anthracite in the region about Wilkesbarre, Pennsylvania." Amer. Journ. Silliman, Vol. IV, p. 14. New Haven, 1822.

Black etching.

270.

1824-Finch (J.). Geology of Easton, &c.

Accompanying "A sketch of the geology of the country near Easton, Pennsylvania." Amer. Journ. Silliman, Vol. VIII. New Haven, 1824.

271.

1826-Troost (Gerard). Karte der Gegend von Philadelphia.

Accompanying "Geological survey of the environs of Philadelphia," cited by B. Cotta, in his "Geognostische Karten unseres Jahrhundert's," 1850, p. 48, No. 533. This map is unknown even in Philadelphia, and contemporaries of Troost, such as the late T. Conrad and Mr. Isaac Lea, had never heard of such a map. It is very doubtful if it exists.

272.

1834-Taylor (R. C.). Rough sketch of the position of the transition beds near Lewiston, Mifflin County, Pennsylvania, containing various species of fossil Fucoides. Scale, 1 inch to 1 mile.

Accompanying "On the geological position of certain beds which contain numerous fossil marine plants of the family Fucoides, near Lewiston, Mifflin County, Pennsylvania," in Transactions of the Geological Society of Pennsylvania, Vol. I, Part I, Plate IV. Philadelphia, 1834.

273.

1835-Koehler (H.). Petrographical map of the coal region of Tamaqua. Accompanying "On the anthracite deposit at Tamaqua, Schuylkill County, Pennsylvania." Transactions of the Geological Society of Pennsylvania, Vol. I, Part II, p. 326. Philadelphia, 1835.

Black etching and geological indications.

274.

1835-Taylor (R. C.). Map of Kishacoquillas Valley. Scale, 5 miles to an inch.

Accompanying "Notice as to the evidences of the existence of an ancient lake, which appears to have formerly filled the limestone valley of Kishacoquillas, in Mifflen County, Pennsylvania." Transactions of the Geological Society of Pennsylvania, Vol. I, Part II, p. 198. Philadelphia, 1835.

275.

1848 Taylor (R. C.). Map of the group of anthracite basins in Pennsylvania.

Accompanying "Statistics of coal," p. 112. Philadelphia, 1848.

276.

1848-Taylor (R. C.). Map illustrative of the statistics of the coal trade of Pennsylvania. Showing the relative positions of the various anthracite and bituminous coal fields.

Accompanying "Statistics of coal," p. 144. Philadelphia, 1848.

277.

1857-Dalson (A. F.). Geological map of the Howard Hill coal field. Scale, 1 mile to 1 inch.

Accompanying "2d Geol. Surv. Pennsylvania. The geology of McKean County," by Chas. A. Ashburner. Vol. R, p. 168. Harrisburg, 1880.

278.

1857-Rogers (H. D.). Map of the anthracite and bituminous coal fields of Pennsylvania.

Accompanying "The geology of Pennsylvania.” 4°. Vol. II, p. 1019. Edinburg, 1858.

Black etching.

279.

1858-Rogers (H. D.). Map of the mining district of Chester and Montgomery Counties.

Accompanying "The geology of Pennsylvania." 4°. Vol. II, Part III, p. 674. Edinburg, 1858.

280.

1858-Rogers (H. D.). Map of the Cornwall ore hills, Lebanon County. Accompanying "The geology of Pennsylvania." 40. Vol. II, Part IV, p. 719. Elinburg, 1858.

Black etching with geological indications.

281.

1858-Rogers (H. D.). Geological and topographical map of the anthracite fields of Pennsylvania. Scale, 2 miles to the inch.

Accompanying "The final report on the geological survey of the State 1858." 4°. Atlas. Edinburg, 1858.

In two sheets.

282.

1858-Rogers (H. D.). Geological map of the State of Pennsylvania, constructed from original surveys made between the years 1836 and 1857. Scale, 5 miles to the inch.

Accompanying "The final report on the geological survey of the State, 1858." 4°. Atlas. Edinburg, 1858.

In three sheets.

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283.

1859-Tyson (P. T.). Geological illustrations (preliminary geological map of Maryland).

Accompanying "First report of Philip T. Tyson, State agricultural chemist, to the house of delegates of Maryland." Annapolis, 1860.

284.

1864 Green (W., jr.). Map of the Lackawanna coal field, Luzerne County, Pennsylvania.

Accompanying "Notes on the anthracite coal region of North America." Trans. North of England Inst. Mining Engrs. Vol. XIII, p. 25. Newcastleupon-Tyne, 1864.

285.

1864-Lesley (J. P.). (No title.)

Accompanying "On the discovery of lignite in Pennsylvania." Proc. Amer. Phil. Soc., Vol. IX, Plate XI. Philadelphia, 1865.

Colored and with geological indications.

286.

1871-Lesley (J. P.). A map showing the topographical character of the southern part of the lands of the Pittsburgh and Baltimore coal, coke, and iron company, Ursina, in Somerset County, Pennsylvania. Scale of 1 mile (to the inch?)

Accompanying "Note on an apparent violation of the law of regular progressive debituminization of the American coal beds coming East." Proc. Amer. Phil. Soc., Vol. XII, p. 131. Philadelphia, 1873.

Black, with indications of limestone and ferriferous coal bed banks written on it.

287.

1871-Platt (Franklin, jr.). Map of the Pittsburgh and Baltimore coal, coke, and iron company's lands, Ursina, Somerset County, Pennsylvania. Scale, 1,500 feet to an inch.

Accompanying "Note on an apparent violation of the law of regular progressive debituminization of the American coal beds coming East." Proc. Anier. Phil. Soc., Vol. XII, p. 160. Philadelphia, 1873.

A topographical map, with lithological and mineralogical indications written on the map.

288.

1871-Lesley (J. P.). A map showing the areas occupied by the 6 foot coal bed in the hills north of Ursina. Scale, 1 mile to the inch. Accompanying "Note on apparent violation of the law of regular progressive debituminization of the American coal beds coming East." Proc. Amer. Phil. Soc., Vol. XII, p. 129. Philadelphia, 1873.

Black etching.