. Journal de chemin de fer de la rue . VUE MONTRANT LA MÉTHODE DE POSE DE LA PISTE DE LA CHAUFFERIE présente la base de l'arceau est disposée de manière à maintenir une tension égale sur l'arc aux hauteurs respectives. Le fil est maintenu par des clips mécaniques vissés, qui, avec l'arc, donnent le bruit. Est le logement de chaudière, qui est de 88 pieds. 7 po x 52 pi 6 po Un mur de diversion sépare les salles de la chaudière et des machines. L'engineroom est de 59 pi x 34 pi. JLA INS., et est de 21 pieds. 4 po de hauteur du sol de la pièce en-gine au sommet du mur. Situé au bout de la chaudière 22 STREET RAILWAY JOURNAL. [Vol XXV. Non. I. la chambre est un stockage de charbon

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. The Street railway journal . VIEW SHOWING METHOD OF LAYING TRACK BOILER ROOM present the bow base is so arranged as to keep an equal tensionon the bow at the respective heights. The wire is held up byscrewed mechanical clips, which, with the bow, give noiselessrun ning. is the boiler bouse, which is 88 ft. 7 ins. x 52 ft. 6 ins. A divi-sion wall separates the boiler and engine rooms. The engineroom is 59 ft. x 34 ft. JlA ins., and is 21 ft. 4 ins. high from en-gine room floor to top of wall. Situated at the end of the boiler 22 STREET RAILWAY JOURNAL. [Vol. XXV. No. i. room is a coal storage room, which is 50 ft. 8 ins. x 35 ft. 4 ins., with storage capacity for 400 tons. An outhouse for officescommunicates with the engine room, and is 12 ft. 9 ins. x 12ft. gl/2 ins. The walls of buildings are 14 ins. thick above and. V f f v Se.c.+ionCROSS SECTION OF POWE 21 ins. thick below the ground line, the walls being supportedby pilasters 14 ft. 9 ins. apart and 21 ins. thick, which are car-ried to the top of walls for supporting the roof principals. Goodlight is obtained throughout the entire building by large glasswindows with iron frames. Ample door space is provided forbringing the machinery into the building, also communicatingdoors to the different rooms. A traveling crane works over anarea of the engine room at a height of 15 ft. ENGINES AND BOILERS The main engine plant consists of three Belliss patent self-lubricating, three-crank, triple-expansion engines, each of 430hp at economical cut-off, and having a steam consumption of13^2 lbs. with superheated and 17 lbs. with saturated steam, with 26-in. vacuum. The speed is 375 r. p. m., and the regulationis within 3 per cent, even with sudden variations from full tono load. The engines are of the enclosed type, supported on aheavy cast-iron frame and sec

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