Second installment of a serial article on musk-ox wool as a possible textile fiber, covering its microscopical examination. It describes the structure, scale counts and fineness of the fine underwool and the coarse beard hairs (kemp), with micron measurements for root end and middle of the staple. It compares samples from Alaska and New York animals and against cashmere and Australian merino. Illustrated with micrographs and width-variation graphs.