Letters to the editor

1. Kingston, E.E.
2. Shannon, J.S.
3. Lacey, M.J.
4. Alikaridis, F.
5. Waight, E.S.
6. Douglas, D.J.
7. Shushan, B.
8. Paradisi, C.
9. Prato, M.
10. Scorrano, G.
11. Ciommer, B.
12. Schwarz, H.