practical demonstration

Roger was also the first to use the term seton, and to give practical demonstration to this means of derivation.

At the time of the Kelly trial practical demonstration of the latent sympathy with crime in Melbourne was afforded.

I had often heard of "stirring up a hornets' nest," but I had never before seen a practical demonstration of its danger.

This error stultifies the logic of divine Science, and must interfere with its practical demonstration.

It was the Genoese's different fortune that he could attempt as a seaman a practical demonstration of his fellow Italian's views.