TY  - BOOK
AU  - Bedini,Silvio A.
TI  - Early American scientific instruments : : and their makers
AV  - Q185.B4 
PY  - 1964///
CY  - Washington
PB  - Museum of History and Technology Smithsonian Institution
KW  - Scietific apparatus and instruments
N1  - Includes bibliography
ER  -