Wadsworth, Marshman Edward,  1847- <br/><br/>
Preliminary description of the peridotytes, gabbros, diabases and andesytes of Minnesota. 
By M. E. Wadsworth. 
 - St. Paul,  The Pioneer press company,  1887. 
 - ix p., 2 leaves, [3]-158 p., 1 leaf.  xii col. pl.  25 cm. 
 - Minnesota. Geological and natural history survey. Bulletin  no. 2 .
<br/><br/> Each plate accompanied by leaf with descriptive letterpress. 
<br/><br/><label>LCCN: </label>gs 06000020  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology--Minnesota.
<br/><br/><label>LC Class. No.: </label>QE127  / .A22