Engraved in ground space: "1"; below that is engraved "K // EXAX // [illeg.] // 25 ml"
Storage Room 0010
Length 22.9 cm x Diam. 1.9 cm
Used to make a blood sugar determination; the test solution and reagent are mixed in the bulb and during subsequent heating, the mixture is protected from aerial reoxidation by the decrease in surface area created by the constriction in the tube; Otto Knut Olof Folin (1867-1934) was an American biochemist; Dr. J. G. Watt practised internal medicine and haematology at the Toronto Western Hospital ca. 1950-1980s.