“Science too has gone crackers.

And X-rays help in this factory where half a million boxes pass through a machine which shows at a glance whether the crackers are filled or not.

It’s the first such installation in the country.

A foot pedal operates the rays.

And there they are, anchors, for young Johnny,  an old boot for daddy, stars and bells to delight Rosie, and a horseshoe brooch to bring mummy luck – all show clearly on the screen.

The boxes known to be full are given a secret mark which you will find next Christmas if you look carefully.”

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