, and vellum are derived from organic sources, so they naturally decay. Most papers manufactured after the middle of the nineteenth century are highly acidic and decay rapidly. Unfortunately, deterioration can be hastened by unsuitable environmental conditions...
accelerate the decay of paper-based products— but this one-two punch can be avoided through careful maintenance of your facility. This manual introduces nontoxic integrated pest management (IPM) techniques for the major pests of collections, focusing on paper...