1. Vogt, P., Z. Naturf., 15b, 221 (1960).
2. Nairn, R. C., Richmond, H. G., McEngegart, M. G., and Fothergill, J. E., Brit. Med. J., ii, 1335 (1960).
3. Nairn, R. C., Fothergill, J. E., McEntegart, M. G., and Porteous, I. B., Brit. Med. J., i, 1788 (1962).
4. Nairn, R. C., Fluorescent Protein Tracing (Livingstone, Edinburgh, 1962).
5. Trotter, W. R., and Belyavin, G., in Advances in Thyroid Research, 138 (Pergamon Press, Oxford, 1961).