[Monograph XXI.] 



Tho piiblipntinns of thn Unitpd Rtntes ffeological Survey nr<> issiicil in apcordanco witli tliostatnto 

 approveil Slanli :>, 1><7!', « liich ileclaies that — 



'• Thr iiiililications of the Geoliifiical Survey shall consist of the annnal roport of operations, geo- 



logiial anil c- miii- maps illiistratini; the resources and elassitiiation of the lauils, ami n poits upon 



general and eiduoniiegeologv ami ])aicontology. The ainiual report of operations of the (ieidogieal 

 Survey shall aeeoiuiiany tin- annual report of the .Secretary of the Interior. All special niemoir.>* and 

 reports of said Survey .shall he issued in uniform tpiarto series if ileemed neci'ssary hy the Din-ctor, hut 

 otherwise in ordinary octavos. Three tbousaml copies i>f each shall he pulilislied for siieiitilic exchanges 

 and for sale at the pi'iie of puldication ; au<l all litiiary and cartograi>liic materials ri-ceivicl in ixchange 

 shall he the property of the United States and form a jiart of the lihrary of the organization : And the 

 money resulting from the sale of such pulilicatious shall be covered iuto the Treasury of the I'nited 

 Statics." 



The following joint resolution, referring to all governmtnt publicatmii.s, was i)a8.sed hy Coiigri'Ss 



July 7. 18XL': , , „ , 



"That whenever ah V document or report shall he ordered i)rinted by Congre&s. there shall lie 

 printed, in addition to the number in cacll case stateil, the ■ usual number' (1,1X10) of copies for binding 

 and distribution among those entitled to receive them." 



Kxccpt in those casis iu which an extra number of any publication has been su]ip!icd to the Sur- 

 vey hy s|M;cial resolution of Congress or has been onh^red by the Secretary of the. Interior, this olliee 

 has uo copies for gratuitous distribution. 



ANNUAL REPORTS. 



I. First AnnualKeport of the T'nited States Oeological Survey, by Clarence King. 1««0. 8^. 79 

 pp. 1 maj). — A pridimiuarv report ilescribing plan ol' organization and publliations. 



II. Second Annual Report of the Tnited States Geological Survey, 18«0-'S1, by .1. \V. I'ow.ll. 

 18«2. 8". 1 V, .")«s p)i. 62 pi. 1 map. 



III. Third Annual Report of the United States Cieological Survey, 1881-82, by .1. \V. I'owell. 

 1883. 8-. xviii, 564 jip. li? pi. and majis. 



IV. Konrth Annual Report of the United States Geological Survey, 1882-'«:5, hy J. W. rowell. 

 188t. 8'^. xxxil, 17:5 pp. 8.J ])1. and maps. 



V. Fifth Animal Report of the United States Geological Survey, ISSS-'i^l, by .1. W. I'owell. 

 1885. S"^. xxxvi, Kiil pp. 5K pi. and nia]ps. 



VI. Sixth .Vnuual Report of the United States Geological Survey, 1884-'85, by .1. \V. Towell. 

 1885. 8"^. xxix, 571) jip. 65 pi. and maps. 



VII. Seventh Annual Ke|iort of Iho United States Geological Survey, 1885-86. by .1. W. I'owell. 



1888. 8'-. XX, ().5li pp. 71 pi. and maps. 



VIII. Eighth Annual K.^iort of the United States Geological Survey, lSH6-'87. by .1. W. Powell. 



1889. 8''. 2 v. xix. 474, xii pp. 53 pi. and iu:'p8; 1 p. 1. l7.5-lCMi3 pp. .54-71; j)!. and nnips. 



IX. Ninth Annnal Rejiort of the United States Geological Survey, 1887-88, by .1. \V. Powell. 

 1880. «-. xiii,717iip. X8 i>l. and maps. 



X. Ti-nth Annu.il Keport of the United States Cieological Survey, 18H8-'89, by .1. \V. Powell. 

 18i»0. 8'. 2 V. XV. 771 pp. !W pi. and maps: viii. 123 lip. 



XI. Eleventh .\nnnal U.port of the Uniti'd States Geological Survey, 1880-'9O, hy .1. \V. Powell. 

 1891. 8-. 2 V. XV, 7.57 pp. (i6 pi. and maps; ix, 351 p]). ;{() pi. and maps. 



XII. Twelfth .\nnnal Report of the United StatesGeologic.il .Survey. l.sgtMU, by .1. \V. Powell. 

 1891. 8". 2 V. xiii.li75pp. .53 pi. and maps; xviii. .576 pp. 116 pi. and nnips. 



XIII. Thirteenth Annual Report of the United States Geological Survey, 1891-'92, by J. \V. 

 Powell, 1893. 8 . 3 v. 



