Laboratory and workshop notes :   a selection /  
edited Ruth Lang . 
 - London :   Arnold ,   1949-1954, 1958-1961, 1962-1964. 
 - v, :    ill. ;    23 cm. 
<br/><br/>  Title varies : 2d, Further laboratory and workshop notes. Editor : 1 st-  R. lang. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical instruments.--------