Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 285
henimmerse glass and all in water for a period of 28 days if possible,keeping watch from day to day to see if the samples show any cracksor signs of distortion. The first indication of inferior quality is the loosening of tlie patfrom the glass, which usually takes place in one or two days.… … The Station and Approach
Architecture · Building · Carpentry
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