each box measuring sixteen inches square
Mr. Grimshaw considerately made allowances for our temporary distraction, and sought to fix our interest on the lessons by connecting them directly or indirectly with the coming Event. The class in arithmetic, for instance, was requested to state how many boxes of fire-crackers, each box measuring sixteen inches square, could be stored in a room of such and such dimensions. He gave us the Declaration of Independence for a parsing exercise, and in geography confined his questions almost exclusively to localities rendered famous in the Revolutionary War.
"What did the people of Boston do with the tea on board the English vessels?" asked our wily instructor.
"Threw it into the river!" shrieked the smaller boys, with an impetuosity that made Mr. Grimshaw smile in spite of himself. One luckless urchin said, "Chucked it," for which happy expression he was kept in at recess.
Notwithstanding these clever stratagems, there was not much solid work done by anybody. The trail of the serpent (an inexpensive but dangerous fire-toy) was over us all. We went round deformed by quantities of Chinese crackers artlessly concealed in our trousers-pockets; and if a boy whipped out his handkerchief without proper precaution, he was sure to let off two or three torpedoes.
Even Mr. Grimshaw was made a sort of accessory to the universal demoralization. In calling the school to order, he always rapped on the table with a heavy ruler. Under the green baize table-cloth, on the exact spot where he usually struck, certain boy, whose name I withhold, placed a fat torpedo. The result was a loud explosion, which caused Mr. Grimshaw to look queer. Charley Marden was at the water-pail, at the time, and directed general attention to himself by strangling for several seconds and then squirting a slender thread of water over the blackboard.
Mr. Grimshaw fixed his eyes reproachfully on Charley, but said nothing. The real culprit (it wasn’t Charley Marden, but the boy whose name I withhold) instantly regretted his badness, and after school confessed the whole thing to Mr. Grimshaw, who heaped coals of fire upon the nameless boy’s head giving him five cents for the Fourth of July. If Mr. Grimshaw had caned this unknown youth, the punishment would not have been half so severe.
On the last day of June the Captain received a letter from my father, enclosing five dollars "for my son Tom," which enabled that young gentleman to make regal preparations for the celebration of our national independence.