EDIS collection. The filter paper and evaporating
dishes were used dry out these solutions obtain the residue nickel flake
(and other metals used the batteries) for subsequent testing. Rosenstein would use
the same equipment his supervisor: mortar and pestle break materials,
measuring cylinders record amounts, and hydrometers test the specific
gravity solutions used storage batteries.
Object and Location Evidence Recommendation
TABLE (against east wall,
between closets and 5)
See figures and for
example. EDIS collection.
215
.629
829 Laverty correspondence Historian’s Note 90.
CLOSET Hydrogen
Sulphite including:
Bismuth
Copper
Lead
Tin
Cadmium
Inorganic Acids
Arsenic
Carbon
1914 inventory. Acquire. There was much testing required the
laboratory that was too much for one man one table.
EDIS collection.
Goldstein and Rosenstein were also involved finding substitutes for materials
used batteries.CLOSET Inorganic
including:
Ammonium Sulphide
Iron
Nickel
Cobalt
Aluminum
Chromium
Manganese
Zinc
1914 inventory.
Testing/Batteries—Rosenstein was Goldstein’s assistant and helped him the
analysis various chemicals. They examined the salt nickel hydroxide help determine if
some other salt would the job better.
STANDS, metal (on table) Figures and 21
