Ethnography and Folk Medicine
1920-1930
Materia Medica & Pharmacology
1928-1930
Computing & Data Processing
1948
Textile Industry
c.1920
Miscellanea & Curiosities
1935
Telecommunications
1928
1929
c.1940
Radio Communication
1935-1936
Industrial Chemistry
1916
Sound Reproduction
c.1935
Electronic Components
1932-1933
1926
Aeronautics
1922-1923
1920-1922
1921
1939
1936
Passenger Comforts
1924
c.1946
1947
c.1915
Photographic Technology
c.1925
Mathematics
1915-1920
1925-1930
Surgery
1918-1920
Time Measurement
1934
Aircraft Propulsion
1942
c.1930
1926-1935
1920-1940
c. 1936