Concluding installment of Werner von Bergen's series on musk-ox wool as a textile fiber. It compares the Greenland white-faced musk-ox with Canadian musk-ox hair spun in Leeds, and summarizes F. H. D. Atkinson's 1922 Leeds thesis conclusions on handle, color, and uses such as hosiery and linings. It includes fineness tables comparing musk-ox, camel hair, and Alaska samples, a width-variation graph, photographs of domesticated musk-oxen in Alaska, remarks on combing the under-hair, and a reference list.