In all these cases certain marked features reappear.

In the first, the boy was very inoffensive, except when teased, and then he growled surlily.

He would eat anything thrown to him, but preferred meat, which he devoured with canine voracity.

He drank a pitcher of buttermilk at one gulp, and could not be induced to wear clothing even in the coldest weather.

He showed the greatest fondness for bones, and gnawed them contentedly, after the manner of his adopted parents.