Proceedings of the optical convention, 1926 / 
edited by Frank Dyson. 
 - London :  Optical Convention,  1926- 
 - v. ;  26 cm. 
<br/><br/> Library has v.1  Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optics--Congresses<br/>Optics<br/>Optical instruments