Smith, Homer Erastus,  1856- <br/><br/>
Applied refraction / 
by Homer Erastus Smith 
 - Edingburth :  E and S. Livingstone,  1927 
 - ix, 131 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eye--Accommodation and refraction