Spectacle Frames

Mr. Dance
asked the Minister of Health why, with the exception of the Windsor type frame, cellulose nitrate is not allowed to be used in the manufacture of National Health Service spectacle frames.

Miss Pitt
Because its advantages are thought insufficient to outweigh the risk, however slight, of its catching fire in manufacture or wear.

Mr. Dance
asked the Minister of Health if he will state the quantities of cellulose nitrate and cellulose acetate used respectively in the manufacture of spectacle frames in this country.

Miss Pitt
I regret the information is not available.