Statistical Methods Applied to the Manufacture of Spectacle Glass

JSGT 1937 V21 T235-T246

A brief description is given of the process of manufacture of glasses for spectacles. The problem of separating the effect, on quality of the many variables, was approached by statistical methods. Selected samples were marked for seed and veins, and the results recorded over several years. Correlation coefficients have been calculated for various associations of the data and attempts have been made to connect such factors with the conditions of manufacture. Variation in refractive index over many melting's is also discussed.

C. E. Gould & W. M. Hampton