Angell, Henry C. . <br/><br/>
The Sight and How to Preserve it /  Textual Documents 
Henry C.Angell. 
 - 1st ed. / 
 - London :  Walter Scott ,  Nd. 
 - 62p. :  ill ;  13cm . 
<br/><br/><label>Subjects--Index Terms: </label>Eyesight G-Technology 
<br/><br/><label>Dewey Class. No.: </label>612.84  / An 43 Si