Pledge, Humphry Thomas <br/><br/>
Scince since 1500 :  a short history of mathmatics, physics, c hemistry and biology / 
by H. T. Pledge 
 - London :  H. M. Stationery office,  1947 
 - 143,143a-356 [2] p. :  ill., diagrs. (incl. maps) xv pl. (incl. fr ont., ports., facsim.) on 8 l. ;  25cm. 
<br/><br/> At head of title: Ministry of Education.Science  Museum 
<br/><br/>Includes bibliographical references (p.326-329) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--History.
<br/><br/><label>Dewey Class. No.: </label>509 PLE