Cool! Part 2 on "gluing laminations" got me to wondering how an ancient/medieval bowyer would have actually glued the layers together, considering they didn't have access to polyvinyl acetate. Wikipedia has some clues at [0]: "Traditionally animal proteins like casein from milk or collagen from animal hides and bones were boiled down to make early glues." and [1]: "A Scythian wood-laminate bow was... constructed by laminating several fine strips of willow and alder wood, bound with fish glue and wrapped in birch bark."
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