Cabot, Godfrey

R. S. Thompson, Jibber in A.merica Before 1492 Godfrey Cabot Inc., Boston, Mass., 1950. 

Obtainable from Godfrey L. Cabot, Inc., Boston, Massachusetts. 

The carbon blacks consisted of Spheron 6 and Sterling FT (fine thermal) black, both non-heat-treated and 2700° C. heat-treated (obtained from the Godfrey L. Cabot Co., Boston, Mass.). Published surface areas for the four carbon blacks are 114, 84.1, 15.5, and 12.5 sq. meters per gram, respectively (31). The silica sand was supplied by the New Jersey Silica Sand Co., Millville, N. J., with the manufacturer s designation of No. 325 flour. Screen analysis by the supplier showed a considerable range in particle size about 60% was retained on a 90-mesh screen and 90% on a 200-mesh screen. Finally, a sample of asbestos was tested (obtained from the Canadian Johns-Manville Co., Port Credit, Toronto, with the designation 7R). Zettlemoyer (31) has studied this material. 

Outstanding pioneers in the development of carbon black production were, in particular, the American brothers Samuel and Godfrey Cabot, who, together with Joseph Binney, Edwin Drew and C. Harold Smith, founded the carbon black companies Cabot diVid Columbian Carbon respectively, in 1882 following the discovery of crude oil and natural gas in Pennsylvania. 

The authors would like to acknowledge the assistance of D. B. Cline in obtaining data presented in this paper. We also wish to thank the Aluminum Company of America, Godfrey L. Cabot, Inc., and the Davison Chemical Company for furnishing powders investigated for this paper. 

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