ADVERTISEMENT. 



Prier SO cents. 



Mineral Resources of the United stiiics. iss:; MIK! iss.|. In Allied Williams, .jr. 1S85. . 8'. xiv, 



KUli )i|l. I'l'icc li() rents. 



Mineral Resiuiives n!' the I'nite.d Stutes. 1SS5. Division of Minim; Slatisties ami Teehnohigv. 

 1WI>. S . vii.TiTti |i|i. I'l'iee 1(1 cents. 



Mineral Resources of the I'niieii States. 1886, by David T. Day. 1SX7. s . \ Hi, si:; pp. I'ncc 



.'.II .'cuts. 



Mineral Resources of the United States. 1SS7, liy I 'avid 'I'. 1 lay. 1MNS. K. vii.SSJpp. Trice 



"ill cents. 



Mineral Resources of the I'nitcd States, 1888, by David T. Day. ISJio. X-. vii, (J5^pp. Trico 

 50 cents. 



Mineral Resources of the I'nited States, 1K8!) and ISilO, liy I i.-ivid T. I la \ . 1S!I^. S '". viii. (iTl ]ip. 

 Price 50 cents. 



