SHADOWS IN THE PICTURE. 183 The Ashdell Academy had been opened a few days before Carl’s return, under the direction of Mr. Barry, who was named principal. Besides other assistants, he was to have the aid of Carl, who was able to teach several branches of mathematics, and to render service in regard to German, French, and music. The school was to be visited at least once a week by Mr. Mill, who acted as its rector and chief patron. Every Monday morning, in particular, he engaged to be present, to give religious instruction, The edifice, having been built for the purpose, was admirably suited to the wants of the institution. The school-rooms were spacious and numerous, so that there was no necessity for crowding. They were well lighted, and, what is quite as important, well ventilated. No one cause operates so disastrously on the health of teacher and scholars as corrupt. air. In schools innumerable the atmosphere is perpetually foul, if it may not rather be called pestilential. This particular had been well cared for by Mr. Mill and Dr. Smith ; and in this they had the hearty concurrence — of Mr. Barry, who had had experience of the ill conse- quences of a few hogsheads of air breathed over and over. He told them the story of the Black Hole of Calcutta, and declared that in many school-rooms the greatest favour one could do would be to knock out two or three panes of glass, I will not deny that Carl felt a glow of some kind, when he first saw the printed “ Circular and Prospectus