Professor Lederer always paced the distance from the door to his desk in twelve measured, dignified strides, head and eyes a little drooped, with the austere look of intensest meditation; like a priest approaching the sacrificial altar, or a Caesar entering the senate--at all events like a being who, far removed from the modern plebeian sphere, walked day by day in the light of the sun of Homer, and was perfectly aware of the majestic fact. So it was never a judicious proceeding to try to detain this classical man upon this short journey, and in most cases a prohibitory gesture of his hand checked the attempt; but the sanguine Arthur was so sure that his request would not be refused, that he ventured it, reckless of further consequences. So, stepping out in front of the professor, he asked for a holiday for the day, which was Saturday. "Certainly not," said the professor. "To go sailing," urged Arthur, not in the least deterred by the stern tone of the professor, for my friend Arthur was not easily abashed--"to go in my uncle's steamboat to examine the oyster-beds which my uncle planted two years ago. I have a note from my father, you know, professor," and he produced the credential in question. "Certainly not!" repeated the professor. His pale face flushed a little with irritation; his white hand, from which he had drawn his black glove, was extended towards Arthur with a classical minatory gesture; his blue eyes deepened in hue, like the sea when a cloud-shadow passes over it.