TY  - BOOK
AU  - Cohen,I.Bernard
TI  - Some early tools of American science: an account of the early scientific instruments and mineralogical and biological collections in Harvard University 
U1  - 509.73 
PY  - 1950///
CY  - New York
PB  - Russell & Russell
KW  - Science
KW  - United States
KW  - History
KW  - Scientific apparatus and instruments
N1  - Bibliography: p. [177] and index
ER  -