The accompanying text in the volume begins as follows: "The personal history of these men is almost entirely unknown; and probably few incidents in their humble progress through life would be found worthy of recording. The elder of the two, DAVID GILCHRIST, was a worthy enough person in his way; and he is still remembered by some of the sable fraternity of Edinburgh. He lived in the College Wynd, off the Cowgate. At a remote period, there was only one individual of the name of Hamilton - resident in the West Port - who devoted his attention solely to the sweeping of chimneys. He kept a number of men and boys in his employment; but the city, notwithstanding, was very indifferently supplied. In order to remedy this state of things - as well as to avoid the barbarous system of 'climbing boys' twelve men, previously porters, were appointed chimney-sweepers for the city, with an annual allowance of one guinea, and certain other perquisites. They were called 'Tron-men', from the circumstance of their being stationed at the Trone, or public beam for weighing, which formerly stood in front of the Tron Church."