TY  - GEN
AU  - Pledge,Humphrey Thomas
TI  - Science since 1500: a short history of mathematics, physics, chemistry [and] biology 
AV  - Q125  
PY  - 1947///
CY  - London
PB  - H.M. Stationery off. [printed by W. Clowes & sons, ltd.]
KW  - Science
KW  - History
N1  - At head of title: Board of education. Science museum; "Bibliographical note": p. 326-329
ER  -