TY - JOUR AB - Summary. The following recapitulation may be made of the salient points of these tests : I . It is possible to determine some of the physical properties of sheet glass in a fairly accurate manner by the use of a comparatively simple testing apparatus. 2. In both the impact and cross bend tests, the blown window glass was stronger than the plate glass. 3. While the energy of impact necessary to produce fracture increased with the thickness of the plate glass, the amount of cracking occurring a t the time of initial fracture also increased. 4. The force of the blow required to crack a piece of glass of a given kind and thickness was not materially increased by the celluloid coating, but the shattered glass remained in place while the plain glass was scattered. 5 . In the cross bend tests the treated glass of a given kind and thickness was about 15 per cent weaker than the plain glass when the celluloid coated side was in compression and about 40 per cent stronger when the celluloid coated side was in tension. ERRATA SLIP “Some Phenomena in Glaze Reduction,” by H. B. Henderson, Vol. I , No. TI - ERRATA SLIP JF - Journal of the American Ceramic Society DO - 10.1111/j.1151-2916.1918.tb17817.x DA - 1918-11-01 UR - https://www.deepdyve.com/lp/wiley/errata-slip-Ce1r0709k0 SP - 808 VL - 1 IS - 11 DP - DeepDyve ER -