There are six portable houses, which are set on posts and can be taken apart and transferred to any location desired. The houses all measure ten by sixty feet, and are divided into five rooms. The center room, heated on cold days, is used as a bathing and dressing room, as well as a sitting room in inclement weather. Those on either side are used as bed rooms. Each room has four windows, two of which are always open and so arranged as to avoid all draughts. Each room contains one bed. The two rooms on either end are entirely open on the three sides, a fine screen only enclosing to keep out insects, etc. Heavy canvas curtains are folded in a roll outside, and can be dropped in stormy weather. These end rooms each accommodates two patients, thus making a capacity of six to each house. In the latter part of 1906 a one-story and a two-story shack were erected for the additional accommodation of patients; and during 1907 two single-story shacks and one small house were built. The shacks are built in the form of the letter T. The stem of the T consists of a room containing the washstands, lockers for each patient, and toilets and baths. In front of this is a sitting room, and opening from either side of this are the sleeping rooms. The latter are practically only verandas, being open in front and on the side, while for protection against storms and severe winds there is a similar provision to that used on the portable houses; that is, the curtains ordinarily rolled up are lowered, shutting off the verandas from the outside. A single-story shack accommodates twelve patients, six on each veranda. The two-story shack accommodates just double that number, being exactly alike in its two stories. A feature of considerable importance in an institution of this kind is the manner in which the different patients are segregated. As nearly as possible patients in the same physical condition as well as those who are apt to be congenial are assigned to the same quarters. Every patient is closely observed for about ten days after admission. The amount and frequency of rest, exercise and work is determined at all times by the condition of the patients. They are assigned to work according to their strength and capabilities. All dining-room duties, such as waiting on the table, washing dishes, and preparing vegetables, are performed by selected patients who show but slight lesions, negative sputum, and have no cough. Many of the patients are able to do farm work, and this keeps them out in the air and relieves their ennui. In a large institution of this kind the problem of sewage disposal is not an easy matter. But by the aid of expert sanitary engineers this has been satisfactorily overcome. Thousands of feet of pipe have been laid, and an up-to-date disposal plant has been erected. The effluent from this plant will have been so purified as to be practically indistinguishable from pure water.