"But Scott is not the only authority in the case; let us ask the
physiologists. So said Horace Mann before us, in the days when the
Massachusetts school system was in process of formation. He asked the
physicians in 1840, and in his report printed the answers of three of the
most eminent. The late Dr. Woodward, of Worcester, promptly said that
children under eight should never be confined more than one hour at a
time, nor more than four hours a day.

"Dr. James Jackson, of Boston, allowed the children four hours schooling
in winter and five in summer, but only one hour at a time; and heartily
expressed his detestation of giving young children lessons to learn at
home.

"Dr. S.G. Howe, reasoning elaborately on the whole subject, said that
children under eight years of age should never be confined more than half
an hour at a time; by following which rule, with long recesses, they can
study four hours daily. Children between eight and fourteen should not be
confined more than three-quarters of an hour at a time, having the last
quarter of each hour for exercise on the play-ground.

"Indeed, the one thing about which doctors do _not_ disagree is the
destructive effect of premature or excessive mental labor. I can quote
you medical authority for and against every maxim of dietetics beyond the
very simplest; but I defy you to find one man who ever begged, borrowed,
or stole the title of M.D., and yet abused those two honorary letters by
asserting under their cover that a child could safely study as much as a
man, or that a man could safely study more than six hours a day."

"The worst danger of it is that the moral is written at the end of the
fable, not at the beginning. The organization in youth is so dangerously