In the magnificent slate quarries of Penrhyn, near Bangor, there are about 2,700 men employed. These men are divided into bands or companies of about twenty each, and each company has its own stone hut in the immediate neighbourhood of their work, into which they can retire for safety when the rock is about to be blasted, and in which they dine together. A few months ago, Mr Phillips visited these quarries, and he there found that every day of the week more than one-half of these huts were used as houses of worship;- half an hour out of the hour allowed for dinner being set apart for prayer and praise and the reading of God's word. In addition to this, in several of the chapels, prayer meetings were held at five o'clock in the morning, and again at night.
From, "The Baptist Reporter," February 1861, pages 55-6.