WHEN cystine labelled with sulphur-35 is injected intraperitoneally 1 or intravenously into a sheep, radioactivity is detectable in the wool follicles, just above the bulb, within a few minutes, and ...

THE presence of a basophilic, sulphur-deficient core in some wools has been reported 1,2, and the core has been called the meta-cortex to differentiate it from the ortho- and para-portions of the ...