1. 1(a) J. E. Stanworth , Physical Properties of Glass , Chapter IV. Oxford University Press, London, 1950 . 224 pp.; Ceram. Abstr., 1950 , p.224 .
2. (b)G. W. Morey , Properties of Glass , 2d ed. , Chapter XIII. American Chemical Society Monograph Series, No. 124 , Reinhold Publishing Corp., New York, 1954 . 591 pp.; Ceram. Abstr., 1954 , p.591 .
3. (c)R. N. Haward , Strength of Plastics and Glass , Chapter III. Interscience Publishers, Inc., New York, 1949 . 245 pp.; Ceram. Abstr., 1949 , p.245 .
4. Fracture and strength of solids
5. Experimental Study of Fracture of Glass:I, The Fracture Process