Computing & Data Processing
1870-1871
Cinematography
c. 1868
Metallurgy
before 1873
before 1871
1880
1870s
Optics
1870-1880
Printing & Writing
1874-1876
Art
1873
Photographic Technology
c.1880
Mathematics
1876
Motive Power
1874
Photographs
ca. 1865
c. 1870
Telecommunications
1870
1879-1880
Microscopy (Wellcome)
1870-1875
Heat
Wellcome (general)
1866-1875
1869-1872
Astronomy
1867
1865
Surgery
1874-1879
Therapeutics
Scientific Instruments & Research
1870-1879
Weighing & Measuring
1870-1876
Electricity and Magnetism
Meteorology
1875
Locomotives and Rolling Stock Components
1869
before 1872
1877
1871-1873
before 1865
Coins, Medals & Tokens
1878