The particular objects which elicited from the public the most attention were the observatories on the summit of the north-west tower of Westminster Abbey, and above the cross of St. Paul’s. The latter, from the dexterity with which the construction of the cradle at that dizzy height was pursued, supported only by the architectural ornaments of the structure, excited much curiosity and wonder. The scaffolding was of rough poles; the stage, ten feet square, formed of planks, which supported the observatory, rested on the golden gallery on the top of the great cone. “The four lower posts, twenty-nine feet long, stood upon short planks bedded on the stone footway; and the top supported the angles of four horizontal planks, each twenty-three feet long, bolted together at the angles. From these planks a screen of boards was erected to prevent materials, &c., from falling. The base of the four upper posts, fifty-three feet long, rested on the angles of the above planks; and the scaffold, in addition to these posts, consisted of four sets of horizontal and four sets of transverse, braces on each of the four sides, the whole being fastened together with spikes and ropes. Fifty-six of the uprights were double poles, placed base and point, and bound together with hoop iron and wedges, and with bolts and hoop iron at the splices. The height from base to floor was eighty-two feet, and to the extreme top of the observatory, ninety-two feet.”[8] A railing, roughly but securely put up, surrounded the “crow’s-nest.” “The ascent was by the inside of the tower or lantern to the circular openings, then to the outside of the foot-ladders set at the north-east corner, parallel to the north-east principal post inside the scaffold. The whole of the materials were drawn up from the floor by a permanent windlass erected in the tower, to the golden gallery, and thence passed to the outside, horizontally, through an aperture thirty-two inches wide, and finally were drawn up and put into position by purchase erected for the purpose.”[9] The whole construction weighed about five tons, and though designed by sergeant James Steel, was erected by sergeant James Beaton, the most successful builder of these aerial fabrics, assisted by privates Richard Pemble and John Porteous,[10] and some civil labourers, under the direction of Captain Yolland.[11] The time occupied in going up the ladder was about seven minutes, but the descent required only four or five.[12] On the 2nd November the last piece of the scaffolding was removed and carted away. In the hazardous and intricate operations of building and dismantling it, not the slightest accident to human life or limb—not even the breaking of a single pane of glass—occurred.[13]