with class rooms at either end, which can be cut off by sliding doors. The arena proper is provided with a tan-bark floor 25 by 104 feet in extent, making it possible to study the gait of a horse without going out of the building. The central part has seats at the back for 225 persons. The two class rooms in the wings will accommodate about 200 students each, the seats being arranged in semicircular form. All can be thrown together into one large audience room for demonstrations or meetings. The animals will be brought up to the arena from the stables below over inclines built at an easy grade. Between the tan-bark floor and the front of the building will be an area covered with a brick floor, which can be used for instruction in harnessing and hitching up teams, grooming horses, etc. The second floor of the building contains two offices for the department of animal husbandry, a workroom, a museum, and a class room for animal feeding. The workroom will be used for the study of pedigrees, the keeping of feeding records, and for microscopic work. It is 22 by 28 feet, while the museum and class room are each 30 by 39 feet in size. On this floor will also be located a dark room, toilet, and a vault for the storage of records and other valuable books. In the left or east wing are located the stables for the live stock, in a basement and subbasement. The land slopes away from the front in such a way as to make both the basement and the subbasement almost entirely above ground. The subbasement will be used for cattle and the floor above for horses. This wing runs back something over 50 feet beyond the main part, so that on the basement floor (horse barn) it has a depth of 120 feet from front to back and a width of 40 feet. The subbasement or cattle barn (fig. 7) has a cement floor and is provided with iron stable fittings. It contains a number of box stalls and a root cellar, which extend into the side hill, and is provided with hay chutes, a manure chute, and a ventilation system. The tunnel furnishing the building with heat from the central heating plant enters the building through the subbasement. The horse barn (fig. 8), located on the floor above, is provided with box stalls, and in the front part contains a large wagon room. On this floor also is located the bins for grain, two rooms for attendants, and a toilet. The hay loft is in the attic above the portion of the wing used for stables. The finish in the stables is in the rough brick; the bed rooms are plastered and finished in pine, as are also the offices. The building was erected out of a State appropriation and cost with equipment about $35,000. It is heated from the central heating plant of the college and lighted throughout by electricity. It is centrally located, convenient to the cattle stables and the hog and sheep barns and adjacent to the building erected a few years ago for slaughtering, cutting up, and curing meats. At the Iowa Agricultural College a new dairy building, to cost about $60,000, is in process of erection. (Pl. XXVII.) The building is 110 by 60 feet, with three stories, an attic, and a basement under the east half. It is built of buff pressed brick, trimmed with buff Bedford limestone, and covered with red tile. The construction is fireproof, the floor and roof being of reenforced concrete. The dairy room and laboratories are finished with buff, trimmed with light red pressed brick, and wainscoted with brown, green, and white enameled brick. In the offices, the class rooms, and the library the walls are plastered. The ground floor and the halls are covered with tile. The other floors are of light-colored cement and the ceilings are plastered. Heat will be supplied eventually from a central system. Electric lights, gas, and distilled water are provided where needed. Power will be transmitted from the central power station by means of electricity, each machine being run by a separate motor. A freight elevator reaches all the floors. Close-grained wood, finished with analine black, will be used for the tops of laboratory tables. Lead sinks will be put in the testing room and enameled sinks elsewhere. The attic and a part of the second floor are left unfinished, but will be completed when the necessary funds are available. The basement contains a small boiler for supplying steam in the summer for heating water and running turbines; a mechanical refrigerating plant, consisting of two compressors-one for cooling and one for making ice-with a combined capacity of 20 tons; a room for students' lockers; a large room for a museum, and a room for cold storage of fruits to be used by the horticultural department. On the ground floor is the creamery for making butter on a large scale. (Fig. 9.) The milk will be received on a covered platform, from which it can be pumped to the separators, carted to the cheese room, or lifted on the elevator to the farm dairy. The separators will be in the middle of the large room, the ripeners in a cream room of glass and enameled brick, and the churns in the adjoining room. Between the churn room and the cheese room are eight small, well insulated rooms fitted with refrigerating coils and ventilating devices. They are adapted for refrigerator, storage, and curing rooms, and some of them are to maintain temperatures as low as -5° F. Above these will be placed the skim milk and buttermilk tanks. The cheese room is fitted for making both domestic and foreign varieties of cheese. Opening into the creamery are a small testing laboratory for creamery work, an office for the instructor in butter making, and a bottling and pasteurizing room for handling market milk and starters. On |