Welch : Laboratory Apparatus :  Science Apparatus and Supplies ,for teaching physics, chemistry, biology, botany,zoology and general science / 

 - USA  Welch Company  1880 
 - 840:p 
<br/><br/>Not Available Contents  
<br/><br/><label>Subjects--Topical Terms: </label><br/>physical Sciences
<br/><br/><label>Dewey Class. No.: </label>500,SCI