start at the level of the second tier of beams. Where a corner lot is more than fifty feet in width, the yard for that portion in excess of fifty feet shall conform to the provisions of section five of this act.

No court of a tenement house hereafter erected shall be covered by a roof or skylight, but every such court shall be at every point open from the ground to the sky unobstructed.

Where one side of an outer court is situated on the lot line, the width of the said court, measured from the lot line to the opposite wall of the building, for tenement houses hereafter erected, shall be not less than four feet in any part, for houses two stories in height; and for every additional story above the two stories in the height of the said building, such width shall be increased six inches throughout the entire height of said court; but this requirement shall not prevent a building from approaching nearer the lot line; provided, that no room in the building obtains its light or ventilation from windows opening upon such narrower court.

Where an outer court is situated between wings or parts of the same building, or between different. buildings on the same lot, the width of the said. court, measured from wall to wall, for tenement houses hereafter erected two stories in height, shall be not less than eight feet in any part; and for every additional story above two stories in the height of the said building, such width shall be increased one foot throughout the entire height of the said court.

Where one side of an inner court is situated on the lot line, the width of the said court, measured from the lot line to the opposite wall of the building, for tenement houses hereafter erected two stories in height, shall be not less than five feet in any part, and the other horizontal dimension shall be not less than ten feet in any part; and for every

additional story above two stories in the height of the said building, such width shall be increased one foot throughout the entire height of said court, and the other horizontal dimension shall be increased two feet throughout the entire height of said court. Where an inner court is not situated upon the lot line, but is enclosed on all four sides, the least horizontal dimension of the said court, for tenement houses hereafter erected two stories in height, shall be not less than ten feet; and for every additional story above two stories in the height of the said. building, the said court shall be increased two feet in each horizontal dimension throughout the entire height of said court.

Every inner court shall be provided with one or more horizontal in-takes at the bottom. Such intakes shall always communicate directly with the street or yard, and shall consist of a passageway of not less than five square feet in area, which shall be left open, or if not open there shall be provided in said passageway open grilles or transoms and such open grilles or transoms shall not be covered over by glass or otherwise.

In computing the size of courts and yards, and the percentage of a lot which may be built upon, a mutual gangway between two building lots shall be counted as if divided equally between the two adjacent lots. Nothing contained in the foregoing sections concerning outer and inner courts shall be construed as preventing windows at the angles of said courts; provided, that the running length of the wall containing such windows does not exceed six feet. Offsets or recesses in outer or inner courts may be made; provided, that the width of such offsets or recesses shall in every case be equal to or greater than the depth. When a tenement house hereafter erected has no basement, the courts mentioned in the preceding sections may start at the level of the second tier of beams.

No separate tenement house shall hereafter be erected upon the rear of a lot where there is a tenement house on the front of the said lot, nor upon the front of any such lot upon the rear of which there is such a tenement house, unless the distance between the two tenemeent houses is at least thirty feet.

In every tenement house hereafter erected every room, except water-closet compartments and bathrooms, shall have at least one window opening directly upon the street, or upon a yard or court of the same lot, of the dimensions specified in sections four to thirteen, inclusive, of this act; and such windows shall be so located as to properly light all portions of such rooms, and shall have a total area in each room of at least one-eighth of the area of the floor of the room.

In every tenement house hereafter erected, all rooms, except water-closet compartments and bathrooms, shall be of the following minimum sizes; in each apartment there shall be at least one room containing not less than one hundred and twenty square feet of floor area, and each other room shall contain at least seventy square feet of floor area. Each room shall be in every part not less than eight feet six inches high from the finished floor to the finished. ceiling: provided, that an attic room need be eight feet six inches high in but one-half of its area.

In every tenement house hereafter erected, the public hall upon each floor shall be provided with a window, or a glazed door, opening to the street, the yard, or upon a court of the size prescribed in sections seven to thirteen, inclusive, of this act, unless the hall is within three stories from the roof. every such tenement house three stories or more in height, where the public hall upon the third floor from the roof is not provided with an outside window or an outside glazed door, there shall be a

In

stair-well extending from this floor to the roof, said stair-well to be at least twelve inches wide over this hall and at least eighteen inches wide over the hall above. All doors leading from public halls not provided with outside windows, and more than two stories below the roof, shall be provided with translucent glass panels of an area of not less than five square feet for each door, or with fixed transoms or translucent glass of an area of not less than five square feet over each door, or such halls shall be lighted by an equivalent amount of translucent glass connecting with a lighted room or rooms. Long and devious hallways shall have such additional provisions as may be necessary to give adequate light, subject to the approval of the building inspector.

In every tenement house hereafter erected, one at least, of the windows provided to light each public hall or part thereof shall be at least ten square feet in area, measured between the stop beads. In every such house where the public halls upon each floor are not provided with windows. opening directly to the outer air, there shall be in the roofs, directly over each stair-well, a ventilating skylight provided with ridge ventilators having a minimum opening of forty square inches, or such skylight shall be provided with fixed or movable louvres; the glazed roof of such skylight shall be not less than twenty square feet in area.

In every tenement house hereafter erected there shall be a water-closet in each apartment of four or more rooms, and at least one water-closet for every two apartments of less than four rooms each. Each water-closet shall be in a separate compartment or bathroom, upon the same floor with the apartment which it accommodates. Except as hereinafter provided, each water-closet compartment or bathroom in any tenement house hereafter

erected shall have a window opening directly upon the street, a yard, a court or upon a vent shaft. Every such window shall be of at least three square feet in area, and shall open freely. A water-closet compartment or bathroom, however, if provided with a separate ventilating flue of non-corroding material and of at least thirty-six square inches in area, leading directly to the roof, may be lighted from an adjoining room or hall by translucent glass in a fixed sash; provided, that the glazed surface shall be of at least twelve square feet in area. Every vent shaft in a tenement house hereafter erected shall be constructed of fireproof material; not more than two water-closets or bathrooms shall open upon such a shaft on one floor of a tenement house, and no two water-closet or bathroom windows opening upon such shaft on the same floor shall be opposite each other. No such vent shaft shall be less than thirty inches in either dimension. If the area of such a shaft is less than twelve square feet, every bathroom or water-closet compartment below the upper story and, if the area is less than twenty-four square feet, every bathroom or watercloset compartment below the second story from the roof, and opening into such shaft, shall be provided with additional light through translucent glass windows of at least four square feet in area, connecting with other portions of the tenement. Every such vent shaft shall be uncovered, or shall be provided with openings at the top equal in total area to the area of the vent shaft, and shall be provided with a horizontal in-take or duct at the bottom communicating with the street or yard, or with a court; such duct or in-take shall be not less than two square feet in area, and shall be so arranged as to be easily cleaned out.

In every apartment of three or more rooms, in a tenement house hereafter erected, access to