1. Dry, F. W., New Zealand J. Agric., 48, 5 (1934).
2. Fraser, A. S., Ross, J. M., and Wright, G. M. (in the press).
3. Barker, S. G., Wool (1932).
4. Fraser, A. S., Ph.D. thesis, University of Edinburgh (1950).
5. Bergen, W. V., and Mauersberger, H. R., “American Wool Handbook” (New York, 1948).