
Molecular model of penicillin by Dorothy M Crowfoot Hodgkin, England, 1945
1945
1945
1945
1946
1947
1955; 1830
1946
2000-100 BCE
1945
1946
1946
1947
1946
1938 and 1951
1903 (original); 1982 (model)
1990-96
circa 1945
1830 (original); 1967 (model)
1952-3
1947
1839 (original); circa 1988 (replica)
1947
1801-1892 (prepared); 1946 (element replaced)
1945-1946
4000-2001 BCE
circa 1947
1947
1947
1947
1946-01-17
1947-01-29
1946-09-10
1946-02-21
1946-12-17
1945
1946-09-12
1963-01
1946-01-09
1946-01-18
1945-03-23
1947-08-16
1946-09-11
1945-04-23
1945-05-15
1947-05-06
1946-06-21
1947
1946-03-28
1947-04
1946-01
1945-03-28