. X ADVERTISEMENT. 



Mineral Resources of the United States, 1892, by David T. Day. 1893. 8°. vii, 850 pp. Price 

 50 cents. 



Mineral Resources of the United States, 1893, by David T. Day. 1894. 8°. viii, 810 pp. Price 

 50 cents. 



On March 2, 1895, the following provision was included in an act of Congress : 



"Provided, That hereafter the report of the mineral resources of the United States shall be 

 issued as a part of the report of the Director of the Geological Survey." 



In compliance with this legislation the following reports have been published : 



Mineral Resources of the United States, 1894, David T. Day, Chief of Division. 1895. 8='. sv, 

 646 pp., 23 pi. ; xix, 735 pp., 6 pi. Being Parts III and IV of the Sixteenth Annual Report. 



Mineral Resources of thp United States, 1895, David T. Day, Chief of Division. 1896. 8°. 

 xxiii, 542 pp., 8 pi. and maps ; iii, 543-1058 pp., 9-13 pi. Being Part III (in 2 vols.) of the Seventeenth 

 Annual Report. 



Mineral Resources of the United States, 1896, David T. Day, Chief of Division. 1897. 8'-'. 

 xii, 642 pp., 1 pi. ; 643-1400 pp. Being Part V (in 2 vols.) of the Nineteenth Annual Report. 



Mineral Resources of the United States, 1897, David T. Day, Chief of Division. 1898. 8='. 

 viii, 651 pp., 11 pi. ; viii, 706 pp. Being Part VI (in 2 vols.) of the Nineteenth Annual Report. 



The money received from the sale of the Survey publicatious is deposited in the Treasury, and 

 the Secretary of that Department declines to receive hauls; checks, drafts, or postage stamps; all remit- 

 tances, therefore, must be by money order, made payable to tlie Director of the United States 

 Geological Survey, or in currency — the exact amount. Correspondence relating to the publications 

 of the Survey should be addressed to 



The Director, 



United States. Geological Survey, 

 Washington, D. C, June, 1899. Washington, D. C. 



