Cummins, W. F.  1840-1931. <br/><br/>
Notes on the geology of northwest Texas, 
by W.F. Cummins ... 
 - Austin,  B.C. Jones & co., state printers,  1893. 
 - 177-238 p.  illus.  25 cm. 
<br/><br/> Cover-title.  At head of title: ... Geological survey of Texas ...  "From fourth annual report, 1892," pt. I. 
<br/><br/><label>LCCN: </label>gs 05000340 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Texas.<br/>Mines and mineral resources--Texas.
<br/><br/><label>LC Class. No.: </label>QE167  / .C8