For example, Johnny asks some morning in the early winter, when the first snow is falling, and he has been watching it for some time from the window in wonder and delight, “Mother, what makes it snow?” Now, if the mother imagines that she must give any thing like a full answer to the question, her attention must be distracted from her work to enable her to frame it; and if she does not give up the attempt altogether, and rebuke the boy for teasing her with “so many silly questions,” she perhaps suspends her work, and, after a moment’s perplexing thought, she says the vapor of the water from the rivers and seas and damp ground rises into the air, and there at last congeals into flakes of snow, and these fall through the air to the ground.

The boy listens and attempts to understand the explanation, but he is bewildered and lost in the endeavor to take in at once this extended and complicated process—­one which is, moreover, not only extended and complicated, but which is composed of elements all of which are entirely new to him.

If the mother, however, should act on the principle of communicating as small a portion of the information required as it is possible to give in one answer, Johnny’s inquiry would lead, probably, to a conversation somewhat like the following, the answers on the part of the mother being so short and simple as to require no perceptible thought on her part, and so occasioning no serious interruption to her work, unless it should be something requiring special attention.

“Mother,” asks Johnny, “what makes it snow?”

“It is the snow-flakes coming down out of the sky,” says his mother.  “Watch them!”

“Oh!” says Johnny, uttering the child’s little exclamation of satisfaction.  He looks at the flakes as they fall, catching one after another with his eye, and following it in its meandering descent.  He will, perhaps, occupy himself several minutes in silence and profound attention, in bringing fully to his mind the idea that a snow-storm consists of a mass of descending flakes of snow falling through the air.  To us, who are familiar with this fact, it seems nothing to observe this, but to him the analyzing of the phenomenon, which before he had looked upon as one grand spectacle filling the whole sky, and only making an impression on his mind by its general effect, and resolving it into its elemental parts of individual flakes fluttering down through the air, is a great step.  It is a step which exercises his nascent powers of observation and reflection very deeply, and gives him full occupation for quite a little interval of time.  At length, when he has familiarized himself with this idea, he asks again, perhaps,

“Where do the flakes come from, mother?”

“Out of the sky.”

“Oh!” says Johnny again, for the moment entirely satisfied.