Among savage peoples the medicine man is often a library of tribal tradition although the modern ethnologists agree that he was by no means the only professional repository of tribal records. The ancient Mexicans, for example, seem to have had special secular chroniclers whose business it was to memorize public events, and to be a sort of walking public records office, memorizing public accounts of all sorts as well as the story of events. According to many critics of the Old Testament this primitive method continued the chief or only method of transmitting records in Palestine for 2000 years after it had given place to writing in Egypt and Babylonia. They hold that the Pentateuch was formed and transmitted by such oral verbal tradition. The Vedic books were, it used to be alleged, gathered and handed down by a rigorous organized system of memorizing, and this has a certain counterpart in modern times in that memorizing of the Confucian books and of the Koran which forms a chief part of the system of education in the respective cases. The strictness with which this method of transmission of memory books has been carried out to the point of fixing every word and even letter is perhaps best illustrated from the Jewish oral tradition as to the sounds of the vowels which apparently continued oral for centuries before they were represented by the vowel point signs. Whether blind Homer composed his songs and recited them throughout Greece without reducing to writing or not, he might have done so and would have done as many another before him in doing so. As a matter of fact the excavations of the last dozen years show pretty clearly a pre-Homeric Greek writing, and Homer himself indeed once refers to the written tablet. But however that may be, the race of minstrels began long before Homer and still exists. In the Middle Ages they were each a walking library, often with a very large repertory, and the same is often true to-day among their successors the actors, reciters and the lecturers. The learning of poems and declamations by school children often results in an inward collection of definite verbal forms in considerable numbers. A more complex form of memory library is that of certain ancients who are alleged to have organized their slaves into a system, each of the slaves being assigned a certain number of works in a certain class to learn by heart and kept ready on call to recite when any one of these should be desired.