. Report on the investigations at Assos, 1882, 1883, pt. I . 0 i,„ Fig. 15. Ends of Cornice Blocks, showing Attachments of Derrick Tackle : A, for Looped Rope ; B, for Iron Dog. INVESTIGATIONS AT ASS OS, 1883. 99 could not, of course, be laid to a close joint, on account of thebar of the lifting-iron intervening. It was necessary to cut,upon one at least of the two surfaces meeting at a joint, a ver-tical channel, through which the grapple could be released andwithdrawn. This channel was made either suffciently deepin plan for the hook of the iron — the dog — to pass freelywhen slipped backwar
. Report on the investigations at Assos, 1882, 1883, pt. I . 0 i,„ Fig. 15. Ends of Cornice Blocks, showing Attachments of Derrick Tackle : A, for Looped Rope ; B, for Iron Dog. INVESTIGATIONS AT ASS OS, 1883. 99 could not, of course, be laid to a close joint, on account of thebar of the lifting-iron intervening. It was necessary to cut,upon one at least of the two surfaces meeting at a joint, a ver-tical channel, through which the grapple could be released andwithdrawn. This channel was made either suffciently deepin plan for the hook of the iron — the dog — to pass freelywhen slipped backwards, towards the joint; or sufficiently. Fig. i6. Cornice Block, as tilted in Lifting. — Release forTURNING Grapple. broad to permit the grapple to be turned 90^ on its verticalaxis, and to be withdrawn in that position, as shown in Figure16. The latter arrangement, complicated as it appears, wassomewhat the more economical in respect to stone-cutting,as it did not require the horizontal slot to be sunk to so greata depth as did the former. One of the blocks of the cornice, upon the southern sideof the building, deserves particular remark. It evidently lOO ARCHAEOLOGICAL INSTITUTE. adjoined a stone, inserted between two others already in po-sition, which is to be considered as the very last laid. Thislast stone seems to have been swung into the air, above theentablature, before it was noticed that in this case both ofthe ends ought to have been provided with vertical channelsthrough which the lifting-irons could be withdrawn, and that,as it was, it could not be set. The difficulty was ingeniouslymet, not by lowering the st
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