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PROCEEDINGS OF THE AMERICAN ACADEMY. 



TABLE V. 

 Values of the Magnetization Vector in Various Kinds of Ikon. 



Mr. Herbert M. Boylston, of Messrs. Sauveur & Boylston, who has 

 most kindly examined, under the microscope, the polished and etched 

 specimens of these irons, reports that Nos. 1, 2, 11, 12, 14, 20, 21, 22, 

 and 25 contain little, if any carbon. Of the Bessemers, with which 

 "R" must be reckoned. No. 6 contains only about 0.05% of carbon, 

 while No. 10 which has a high specific magnetism has 0.15% and 



