25 NOVEMBER 1955, Page 17


Sta,—Surely every schoolboy knows of the syn- theticsubstance laevolcucyttriglycyllaevoleuey.1- triglycyllaevoleucyloctaglycylglycine. — Yours JAMES WATT

Middlefield, Cu par. Fife

PS.—In case you do not at present have a schoolboy on your staff, you will find I Ig (as it is popularly known) in print on page 477 of Read, J., Textbook of Organic Chemistry (G. Bell & Sons), 1941 reprint.