Proof corrections for printer and authors 

 -  1959 
<br/><br/><label>Standard No.: </label>30322 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INDUSTRIAL ARTS
<br/><br/><label>Dewey Class. No.: </label>M14, J9