520E. Lyell, Charles. Same. New York, 1857. 75c.
521. Marcou, Jules. Geological Map of the U. S. and the British Provinces of N. America. Folio, 3 ft. x 2 ft., printed in colors, mounted on linen and folded to octavo size in original printed covers. Fine copy, rare. Boston, 1853. $3.00
522. Marsh, O. C. Dinocerata. A Monograph of an Extinct Order of Gigantic Mammals. (U. S. Geol. Sur. V. 10.) Folio, half cloth, and printed heavy paper covers, large paper copy, author's ed., uncut, with autogr. inscription. Wash., 1884. $3.00
523. Maclure, Wm. Observations on the Geology of the U. S. 91 pp., 4to, boards, uncut, needs rebacking. Large geog. map of U. S.; also plate of 5 sections of U. S., from Atlantic to basin of the Mississippi River. The valuable first and unabridged ed. pub. in Trans. Amer. Philos. Soc. With title; (vol. 1, P. S.), list of officers, etc. Phila., 1818. $2.75
524. Mease, James, M. D. Geological Account of the U. S., Describing their Animal, Vegetable and Mineral Productions, Antiquities and Curiosities. 16mo, new half mor., uncut, 510 pp., illus., corner torn from title-page and pp. 1-4, ink notes on margin. Phila., 1807. $2.75
525. Mercati, M. Appendix ad Metallothecam Vaticanam. Additis Notis. Folio, boards, 54 pp., numerous plates of fossils, also plates of "Apollo," "Laocoon," etc. Romæ, 1719. $2.00
526. Miller, S. A. American Paleozoic Fossils, Catalogue of the Genera and Species, with Names of Authors, Dates, Groups of Rocks in which Found, Etymology, etc. Royal 8vo. Cincinnati, 1877. $2.25
527. Minnesota. Winchell, N. H. Geology and Natural History Survey. Fourth Annual Report for 1875. Paper, map. St. Paul, 1876. $1.50
528. Minnesota. Same. Various Years, Quoted.
529. Muir, John. The Mountains of California. First Ed., 381 pp., illus., gilt top, much on "The Wild Sheep." N. York, 1894. $1.25
530. New York State Fossils. Communication from the Governor, with several Reports on the Geolog. Survey of the State. Stitched, 184 pp., contains Paleontol., by Conrad, New Genera and Spp. Albany, 1841. $1.50
531. Packard, White and Shufeldt. Hayden's U. S. Geol. and Geog. Sur. of Wyoming and Idaho, 1878, part 1. Contains Contributions to Invertebrate Paleontology Nos. 2-8, inclus. By C. A. White. Monograph of the Phyllopod Crustacea of N. America. By A. S. Packard. Osteology of (various species of birds). By R. W. Shufeldt. Each with numerous plates. 786 pp. Wash., 1883. $3.00