Abstract
The aspect of the development of knotting method is different in each race. This is due to the geographical location of the uncivilized people or race and secondly to different types of string materials produced in the regions in which they live.
In this paper, the author has ascertained the relation between the development of knotting methods and the kinds of string materials used. The conclusions are as follows : (1) Not only the Eskimo but also the American Indians and the African natives very frequently use animal skins as string material. (2) There are as many different types of knots among uncivilized peoples, as among civilized peoples. The reason seems to be that each race develops many kinds of knots in the course of ages, though the original period of use differ according to races owing to the diversity of string materials available in the regions. In this case, the degree of the adaptation of individual material to each type of knot can be indicated by the frequency of the knotting usage(%). (3) In the southern parts of the world, bamboo and vegetable fiber are very frequently used as string material, but it is very difficult to make complicated or intricate knots with bamboo.
