00976nam0-22003011i-450-99000031373040332120001010000031373FED01000031373(Aleph)000031373FED0100003137320001010d--------km-y0itay50------baitay-------001yyAsphaltes and allied substances. Their occurence, modes of production, uses in the arts and methods of testing.ByHerbert Abraham2° ed.New YorkD. Van Nostrand Company1920XXV,608, 208 ill., tav., 24 cm660Abraham,Herbert17020ITUNINARICAUNIMARCBK99000031373040332104 106-7CI 01340DINCHDINCHAsphaltes and allied substances. Their occurence, modes of production, uses in the arts, and methods of testing129142UNINAING01