Herculaneum, past, present & future . ith the cleaning otvarious objects, so as to tree them trom earth, corrosions, andadhesions, and have devised an excellent system by v^hich theobjects are effectively cleaned (by jets or sprays of water orchemical solutions of varying temperature and under differentpressure, etc.), without in any way damaging their surface orthe colours and delicate polish applied to them originally. Indoubtful cases, namely those that do not clearly come under thegeneral processes adopted, the object is taken to the chemicallaboratory (a receipt being given and record bei
Herculaneum, past, present & future . ith the cleaning otvarious objects, so as to tree them trom earth, corrosions, andadhesions, and have devised an excellent system by v^hich theobjects are effectively cleaned (by jets or sprays of water orchemical solutions of varying temperature and under differentpressure, etc.), without in any way damaging their surface orthe colours and delicate polish applied to them originally. Indoubtful cases, namely those that do not clearly come under thegeneral processes adopted, the object is taken to the chemicallaboratory (a receipt being given and record being kept of suchtransference), where the treatment is carefully applied by themost competent experts. We have already mentioned that ourchemists had made most important discoveries concerning thetreatment of bronze. These not only refer to the preservationof the patina^ but to the restoration of shape and masses of bronze, the appearance of which at firstsight made all restoration of form and design seem hopeless, are. SILVER SITULA. Scene in bath in rcpmise \\or\ 44. CHAP. IV AFTER EXCAVATION 171 treated by different solutions until the original shape and outlineand the most delicate linear ornament and inscription reappear.^ Upon issuing from the cleaning shed, the fragmentaryobjects are at once transferred to the sorting shed, the sameprocess of receipts and records being again followed in thiscase. Here every attempt is made to find the missing portionsbelonging to an incomplete object, and to group together theseveral parts of an object that form a whole. There are longtables in this shed, and the fragments, according to the classof objects (vases, terra-cottas, bronzes, inscriptions, etc.) to whichthey belong, are each given their table ; while the fragmentsdeposited are kept on shelves and are distributed according tothe place where they were found and the date of their finding. In this respect those engaged at Herculaneum are excep-tionally for
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