Sorby, Henry

In the penultimate sentence, I have used the word phase . This concept was unknown to von Widmanstiitten, and neither was it familiar to Henry Sorby (1826 1908), an English amateur scientist who was the prime pioneer in the microscopic... 

Sorbi, D., McGill, D.B., Thistle, J.L., Therneau, T.M., Henry, J., Lindor, K.-D. An assessment of the role of hver biopsies in asymptomatic patients with chronic liver test abnormalities. Amer. J. Gastroenterol. 2000 95 3206-3210... 

A NEW DOOR opened into the study of materials in the late 19th century (1863) when a British geologist named Henry C. Sorby decided to polish a piece of steel, etch it with acid, and examine it under a microscope. Since that time, metallographic examinations have been performed on most every engineering material developed. 

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