After they are all written, he calls upon the pupils to spell them aloud as they have written them, simultaneously, pausing a moment after each, to give those who are wrong an opportunity to indicate it by some mark opposite the word misspelled.

They all count the number of errors and report them.

He passes down the class, glancing his eye at the work of each one to see that all is right, noticing particularly those slates which, from the character of the boys, need a more careful inspection.

A teacher who had never tried this experiment would be surprised at the rapidity with which such work will be performed by a class after a little practice.
Now how different are these two methods in their actual results! In the latter case the whole class are thoroughly examined.

In the former not a single member of it is.