The nature and properties of all these materials must be analysed. ... What is the best cementing material for refastening loose gold or loose inlay, since a material employed by the Ancient Egyptians in the dry climate of Upper Egypt is not necessarily suitable for the damper climate of museums? Very little chemical work has been done on many of the problems faced, and of that little a considerable proportion of the results are so scattered in scientific journals that they cannot easily be traced.[12]