A.r)VE;RTISE:iVIEN"T. 



[Bulletin No. 24.] 



The publications of the United States Geological Survey are issued in accordance with the statute, 

 approved March 3, 1879, which declares that — 



"The publications of the Geological Survey shall consist of the annual report of operations, geo- 

 logical and economic maps illustrating the resources and classification of the lands, and reportsupon 

 general and economic geology and paleontology. The alinual report of operations of the Geological 

 Survey shall accompany the annual report of the Secretary of the Interior. All special memoirs and 

 reports of said Survey shall be issued in uniform quarto series if deemed necessary by the Directoi, 

 but otherwise in ordinary octavos. Three thousand copies of each shall be published for scientific 

 exchanges and for sale at the price of publication ; and all literary and cartographic materials received 

 in exchange shall be the property of the United States and form a part of the library of the organ- 

 ization : And the money resulting from the sale of such publications shall be covered into the Treas- 

 ury of the United States." 



On July 7, 1882, the following joint resolution, referring to all Government publications, was passed 

 by Congress : 



' ' That whenever any document or report shall be ordered printed by Congress, there shall be printed, 

 in addition to the number in each case stated, the ' usual number ' (1,900) of copii>s for binding and 

 distribution among those entitled to receive them.'' 



Under these general laws it will be seen that none of tho Survey publications are furnished to it for 

 gratuitous distribution. The 3,000 copiesof the Annual Report are distributed through the tiocument 

 rooms of Congress. The 1,900 copies of each of tho publications are distributed to the officers of the 

 legislative and executive departments and to stated depositories throughout the United States. 



Except, therefore, in those cases where an extra number of any publication is supplied to this office by 

 special resolution of Congress, as has been done in the case of the Second, Third, Fourth, and Filth An- 

 nual Ileports, or where a number has been ordered for its use by the Secretary of tho Interior, as in ihe 

 case of Mineral Resources and Dictionary of Altitudes, the Survey has no copies of any of its publica- 

 tions for gratuitous distribution. 



ANNUAL REPORTS. 



Of the Annual Reports there have been already i)ublished : 



I. First Annual Report to the Hon. Carl Schurz, by Clarence King. 1880. 8°.' 79 pp. 1 map.— A 

 preliminary report describing plan of organization and publications. 



n. Report of the Director of the United States Geological Survey for 1880-'81, by J. W. Powell. 



1882. 8°. Iv, 588 pp. 61 pi. 1 map. 



III. Third Annual Report of the United States Geological Survey, 1881-'82, by J. W. Powell. 



1883. 8°. xviii, 564 pp. 67 pi. and maps. 



IV. Fourth Annual Report of the United States Geological Survey, 1882-83, by J. W. Powell. 



1884. 8°. xii, 473 pp. 85 pi. and maps. 



The Fifth and Sixth Annual Reports are in press. 



MONOGRAPHS. 



Of the Monographs, Nos. II, III, IV, V, VI, VII, and VIII are now published, viz : 



II. Tertiary History of the Grand Caiion District, with atlas, by Clarence E. Dutton, Capt. U. S. A. 



1882. 4°. xiv, 264 pp. 42 pi. and atlas of 24 sheets folio. Price $10.12. 



III. Geology of the Comstock Lode and the Washoe District, with atlas, by George F. Becker. 1882. 

 4°. XV, 422 pp. 7 pi. and atlas of 21 sheets folio. Price $11. 



IV. Comstock Mining and Miners, by Eliot Lord. 1883. 4°. xiv, 451 pp. 3 pi. Price $1.50. 



V. Copper-bearing Rocks of Lake Superior, by Roland D. Irving. 1883. 4°. xvi, 464 pp. 15 1. 

 29 pi. Price $1.85. 



VI. Contributions to the Knowledge of the Older Mesozoic Flora of Virginia, by Wm. M. Fontaine. 



1883. 4°. xi, 144 pp. 54 1. 54 pi. Price $1.05. 



VII. Silver-lead Deposits of Eureka, Nevada, by Joseph S. Curtis. 1881. 4°. xiii, 200 pp. 16 pi. 

 Price $1.20. 



Vni. Paleontology of the Eureka District, by Charles D. Walcott. 1884. 4°. xiii, 298 pp. 21 1, 

 24 pi. Price $1.10. 



