While a boy holds out his fingers and toes for his teacher to count, she holds an itemized statement and checks off his body parts on the list, including 1 nose, 2 eyes, 10 fingers and 10 toes. The table is labelled Sane 4th Fourth. Written on a sheet of paper on the floor is 'Having tried one of your sane Fourths we will use no other.'
According to the Wikipedia entry on July 1910, a safe and sane public education program leading up to the holiday reduced the number of serious injuries and deaths during the Fourth of July by more than 40 percent.
From Hennepin County Library
Original available at: https://digitalcollections.hclib.org/digital/collection/Bart/id/8064/rec/2722