Simpson, Howard E.  1874-1938. <br/><br/>
A method of water prospecting, 
by Howard E. Simpson. 
 - Grand Forks, N. Dak.,  1927. 
 - 17 p.  pl.  23 cm. 
 - North Dakota. Geological Survey. Bulletin  6 .
<br/><br/> At head of title: Artesian water conservation fund: Artesian water paper no. 4.  "Third biennial report of the State water geologist" [1925-1926]: p. 9-16.  List of Artesian water papers: p. 17. 
<br/><br/><label>LCCN: </label>gs 28000259  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply--North Dakota.
<br/><br/><label>LC Class. No.: </label>TD390  / .S5