Study of adhesives used in furniture and other relics of earlier civilizations yields little of value to present-day craftsmanship. This paper therefore discusses only the more recent developments in glues and the technique of using them. While some glues were of ancient origin, the modern large-scale production and the more precise controlled methods have resulted in glues of higher and more uniform quality than the ancient glues from the same sources. Standardization of tests and testing methods is important. Joint tests constitute the principal means for determining the suitability of glues for woodworking. Tests that can be made directly upon the glues rather than upon glued joints may be developed.

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