Frequently after prolonged suppuration, internal organs undergo a form of degeneration known as amyloid[1] or lardaceous or waxy, which is liable to occur in phthisis[2], syphilis and diseases of the kidneys, liver and spleen. It is more fully mentioned in the articles treating of those diseases.[1] The grammar here is inconsistent with contemporary use of the word - amyloidosis is the aggregation of amyloids, proteins that have folded and became insoluble.
[2] Phthisis is more commonly referred to as tuberculosis.