Under the auditorium and below the level of the street is the part of the building called the Lower Temple. Here are Sunday School rooms, with a seating capacity of two thousand. The Sunday School room and lecture room of the Lower Temple is forty-eight by one hundred and six feet in dimensions. It also has many beautiful stained-glass windows. On the platform is a cabinet organ and a grand piano. In the rear of the lecture room is a dining-room, forty-five by forty-six feet, with a capacity for seating five hundred people. Folding tables and hundreds of chairs are stowed away in the store rooms when not in use in the great dining-room. Opening out of this room are the rooms of the Board of Trustees, the parlors and reading-rooms of the Young Men's Association and the Young Women's Association, and the kitchen, carving-room and cloak-room. Through the kitchen is a passageway to the engine and boiler rooms. In pantries and cupboards is an outfit of china and table cutlery sufficient to set a table for five hundred persons. The kitchen is fully equipped, with two large ranges, hot-water cylinders, sinks and drainage tanks. In the annex beyond the kitchen, a separate building contains the boilers and engine room and the electric-light plants. The steam-heating of the building is supplied by four one hundred horse-power boilers. In the engine room are two one hundred and thirty-five horse-power engines, directly connected with dynamos having a capacity of twenty-five hundred lights, which are controlled by a switchboard in this room. The electrician is on duty every day, giving his entire time to the management of this plant. The building is also supplied with gas. Directly behind the pulpit is a small closet containing a friction wheel, by means of which, should the electric light fail for any reason, every gas jet in The Temple can be lighted from dome to basement. For cleaning the church, a vacuum plant has been installed, which sucks out every particle of dust and dirt. It does the work quickly and thoroughly, in fact, so thoroughly it is impossible even with the hardest beating to raise any dust on the covered chairs after they have been cleaned by this process. Such crowds throng The Temple that some quick, thorough method of cleaning it became imperative. Back of the auditorium on the street floor are the business offices of the church, Mr. Conwell's study, the office of his secretary and of the associate pastor. All are practically and cheerfully furnished, fitted with desks, filing cabinets, telephones, speaking tubes, everything to carry forward the business of the church in a time-saving, businesslike way.