The different kinds of writing required different sorts of receptacles. The book chest or bookcase, from which has come through the Greek the common word for library in languages other than English, was the most universal and natural way of keeping almost every kind of tangible record. The wooden chests and clay chests of the earliest historical periods must have extended well back into the pre-phonetic period and have also been found among primitive and semi-civilized peoples. They can obviously be used for quipus, message sticks, or almost any portable document. The same is true of the clay jar so often used in the earliest historical period. In the case of wandering tribes, however, less rigid or fragile materials are certainly better, and the book pouch was, therefore, in very early, and probably much earlier use than either boxes or jars. The skin pouch, like the skin water jar, is naturally suggested and easily made. This early form survives in the medicine bag, the lawyer’s green bag, and the schoolboy’s bag as well as in mail pouches for post-office use. The use of basketry work and perhaps other textile work as bookcase also certainly extended back into pre-phonetic times and is represented in primitive usage. It is not to be supposed, of course, that in these primitive times there were often separate buildings, such as the later Greek treasuries, or even separate rooms as in the Egyptian temples, and the archives at Boghaz Keuei and elsewhere, although separate huts for these and especially for “collections of liturgical objects” would perhaps be almost the first use for covered rooms, while sacrificing was still conducted in the open air. Something like a pouch or wallet must have been used for the marked pebbles of the Stone Age and for pebble counting generally before the grooves and rods of the abacus were invented. The method of keeping and displaying the books in the boxes, pouches, rooms or buildings, varied of course according to the nature of the document. In the modern library there is a great difference between the machinery necessary to keep and display folded documents, rolled documents, and ordinary bound books. The pouch may have had compartments like a modern purse. Basketry, clay and wood cases did have compartments, one for each roll, in quite early papyrus days.