Edison metallurgical laboratory, Building later than December 1893,
The "Insomnia Squad" Building 4.1910.
Figure 39.
Figure 41.
Figure 25.
Figure 26.
Edison with Charles Schwab entrance Building 1912.
Chemistry laboratory, Building February 24, 1911.
Chemistry laboratory, Building looking north, 1910.
Figure 34.
Figure 32.
Figure 24.
Chemistry laboratory, Building looking north, September 1915. 1930.
Figure 31.
Ore milling equipment, probably the metallurgical laboratory, Building 4.
Edison's desk chemistry laboratory, Building ca.
Figure 40.
Figure 43.
Pattern shop, Building looking south, ca.
Figure 38.
Figure 36.
Figure 45,
Figure 46.
Edison chemistry laboratory, Building May 17, 1919.
Figure 47.1905.
Pattern shop, Building looking north, January 1917.
Edison with Francis Arthur Jones Building 1906.
Figure 29.
Figure 30.
Chemistry laboratory, Building looking north, June 1928.
Figure 33.
Edison Building looking south, February 1908.
Phenol condenser.
Figure 42.
Figure 37.
Edison Building 1906.
Figure 28.
Chemistry laboratory, Building looking north, ca.
Edison's table, chemistry laboratory, Building looking north, 1915-1917.
Edison and assistant Building 1906.
Edison chemistry laboratory, Building ca.
Figure 44. Synthetic Resins and their Plastics, Carleton Ellis.
Chemistry laboratory, Building looking north, July 1954.
Edison his worktable the chemistry laboratory, looking north, Building 2.1890.
Figure 27.
x
.1910.
Figure 35.Figure 23.
Edison Building ca.
Edison Building 1906.
Edison with George Hart chemistry laboratory, Building looking north,
December 1929
