ADVERTISEMENT. HI 



XXXIV. The Glacial Gravels of Slaluo and their Associated Deposits, by George H. Stone. 1899. 

 4^. xiii, 499 pp. 52 pi. Price . , , , o. ,>t , ,•■. ^ , 



XXXV. The Later Extinct Floras of North America, by John Strong Newberry ; edited by 

 Arthur Hollick. 1898. 4''. xviii, 295 pp. 68 pi. Price $1.25. , ^ „ „, ^ , 



XXXVI The Crystal Falls Iron-Bearing District of Michigan, by J. Morgan Clements and 

 Henry Lloyd Smyth ; with a Chapter on the Sturgeon River Tongue, by William Shirley Bayley, and au 

 introduction by Charles Richard Van Hise. 1899. 4°. xxxvi,512pp. 53pl. Price—- . 



XXXVII. Fossil flora of the Lower Coal Measures ot Missouri, by David White. 1899. i°. 

 xi, 467 pp. 73 pi. Price . 



In preriaiation: 



XXXVIII. The Illinois Glacial Lobe, bv Frank Leverett. 



—Flora of the Lar.amie and Allied Formations, by Frank Hall Knowlton. 



BULLETINS. 



1 On Hypersthene-Andesito and on Triclinic Pyroxene in Augitic Rocks, by "Whitman Cross, 

 with a Geological Sketch of Buttalo Peaks, Colorado, by S. F. Emmons. 1883. 8^. 42 pp. 2 pi. 



2 Gold and Silver Conversion Tables, giving the Coining Values of Troy Ounces of Fine Metal, 

 etc., computed by Albert AVilliams, jr. 1883. 8°. 8 pp. Price 5 cents. „„„„.,, „ ,. 



3 On the Fossil Faunas of the Upper Devonian, along the Meridian of (6° 30', from lompkms 

 Countv, N. Y., to Bradford Countv, Pa., by Henry S. Williams. 1884. 8'-. 36 pp. Price 5 cents. 



4. On Mesozoic Fossils, by Charles A. White. 1884. 8'^. 36 pp. 9 pi. Price a cents. 



5. A Dictionary of Altitudes in the United States, compiled by Henry Gannett. 1884. 8°. S2o 



^^' e" Elevations' in the Dominion of Canada, by J.W.Spencer. 1884. 8°. 43 pp. Price 5 cents. 



7 Mapoteca Geologica Americana. A Catalogue of Geological Maps of America (North and 

 South), 1752-1881, in Geographic and Chronologic Order, by Jules Marcou and John Belknap Marcou. 

 1884. 8°. 184 pp. Price 10 cents. . t. , , -r, t^ t ■ i 



8 On Secondary Enlargements of Mineral Fragments m Certain Rocks, by K. D. Irving ana 

 C. R. v'an Hise. 1884. 8°. 56 pp. 6 pi. Price 10 cents. ,ooq -a. i- iv 



9 A Report of Work done in the Washington Laboratory during the Fiscal Year 1883-84. !• . U . 

 Clarke,' Chief Chemist ; T.M.Chatard, Assistant Chemist. 1884. 8°. 40 pp. Price 5 cents^ 



10. On the Cambrian Faunas of North Ajnerica. Preliminary Studies, by Charles Doolittle 

 Walcott. 1884. 8°. 74 pp. 10 pi. Price 5 cents. ^ x- ' 



11 On the Quaternarv and Recent Mollusca of the Great Basin; with Description ot New 

 Forms by R Ellsworth Calk Introduced by a Sketch of the Quaternary Lakes of the Great Basin, 

 by G. k. Gilbert. 1884. 8°. 66 pp. 6 pi. Price 5 cents. laai vc; 



12. A Crystallographic Study oftheThinolite of Lake Lahontau, by Edward S.Dana. 1884. 8'-. 



84 pp. 3 pi. Price 5 cents. , , r,, -^ • -^i tt .t • i 



13 Boundaries of the United States and of the Several States and Territories, with a Historical 

 Sketch o'fthe Territorial Changes, by Henry Gannett. 1885. 8°. 135 pp. Price 10 cents. 



14. The Electrical and Magnetic Properties of the Iron-Carburets, by Carl Barus and Vincent 

 Strouhai. 1885. 8°. 238 pp. Price 15 cents. ^ „ * ^ • ■, r.-, , k ivi •<- las- «o 



15. On the Mesozoic and Cenozoic Paleontology of California, by Charles A. \/hite. 188o. 8-^. 



33 pp. Price 5 cents. ^ ^^ ,. , , t i -vr rn i loo- oo 



16. On theHigherDevonianFaunasofOntarioCounty,NewYork, by JohnM. Clarke. 18»o. » . 



86 pp. 3 pi. Price 5 cents. ,, , „„, , tvx , -j., -kt ^ 



17 On the Development of Crystallization in the Igneous Rocks of Washoe, Nevada, with Notes 

 on the Geology of the District, by Arnold Hague and Joseph P. Iddings. 1885. 8°. 44 pp. Price o 



°^° ^18 On Marine Eocene, Fresh-Water Miocene, and other Fossil Mollusca of Western North 

 America! by Charles A. White. 1885. 8^^. 26 pp. 3 pi. Price 5 cents. _ 



19: Notes on the Stratigraphy of California, by George F. Becker. 188o. 8-. 28 pp. Price o cents. 



20. Contrilnitions to the Mineralogy of the Rocky Mountains, by A\ hitman Cross and W. F. Hille- 

 brand. 1885. 8^^. 114 pp. 1 pi. Price 10 cents. ^ ^, -n ■ ^ ^ t, r. i 



n The Lio-nites of the Great Sioux Reservation ; a Report on the Region between the Grand 

 and Moreau Rivers, Dakota, by Bailey Willis 1885. S'^. 16 pp- 5 pi. Price 5_ cents. 



22. On New Cretaceous Fossils from Califorma, by Charles A. White. 188o. 8°. 2oi_)p. o pi. 



rice ^3'^'^Q^;jgj,yj^(.jg^g Q^ ^i^g Junction between the Eastern Sandstone and the Keweenaw Serie^s on 

 Keweenaw Point, Lake Superior, by R. D. Irving and T. C. Chamberlin. 1885. 8^. 124 pp. li.pl. 



rice 24 ^L^ist of Marine Mollusca, comprising the Quaternary Fossils and Recent Forms from American 

 Localities between Cape Hatteras and Cape Roque, including the Bermudas, by William Healey Dall. 



^^^'^' 25°'TheVresent^TTehni«il Condition of the Steel Industry of the United States, by Phineas 

 Barnes. ' 1885. 8°. 85 pp. Price 10 cents. ■„ ■ ,„ + 



26. Copper Smelting, by Henry M. Howe. 1885. 8^. 10 ( pp. Price 10 cents. 



27. Report of Work done in the Division of Chemistry and Physics, mainly during the Fiscal Year 

 1884-85.' 1886. 8>=. 80 pp. Price 10 cents. _ . ,, ,t ■ , , , i ^-t^ i^- 



''8 The GabbroB and Associated Hornblende Rocks occurring in the Neighborhood of Baltimore, 

 Maryland, by George Huntington Williams. 1886. 8°. 78 pp. 4 pi. Price 10 cents. 



