both of aisles and clerestory are filled with painted glass, in many cases of a deep colour, and rendered still more impervious to light by the incrustation of carbon deposited on their outside by the perpetual smoke of the city. So dark is the church that in the winter months it has generally to be lit with gas all the day long, and even in the summer, in comparatively bright weather, some gas burners will generally be found alight. The mist also of the exterior atmosphere finds its way into the building, and hangs beneath the roof, lending an air of mystery to the whole place, and giving rise to most beautiful effects when the sunlight streams through the clerestory windows. The tone also of the nave arcading and clerestory rebuilt in recent years, of warm, rose-coloured sandstone, is very lovely. The visitor on entering the church, before examining the different objects in detail, should get general impressions of the building. The view from just inside the south porch showing the four rows of arcading separating the outer aisles from the inner, and these from the central nave, is very fine. The view from beneath the tower arch looking eastward is most impressive. Another good view is from the altar steps looking westward, especially in the early part of a bright day, when there is sufficient light to show the magnificent tabernacle work of the stalls, and the organ-stands out clearly defined against the sunlit misty air of the upper part of the nave behind it. [Illustration: VIEW ACROSS THE NAVE, LOOKING NORTH-EAST.] To see these three views of the building under favourable conditions of light will well repay the visitor for a journey of many miles to Manchester, to say nothing of the exquisite detail work that now demands our attention. It has been already explained that the outer aisles on either side have been formed by throwing down the walls or screens that once divided these spaces into a series of chapels on the outside of the real nave aisles. In Continental churches double aisles on the north and south side of the church are by no means uncommon, but instances of this arrangement are more rarely met with in England. The most familiar example is Chichester Cathedral, where double aisles have been formed by the inclusion of lateral chapels.