Abstract
In this paper the writer reported that the human ear-lappets divided into two groups: the one has Lobulus auriculae, the other has not. He carried out a study on the inheritance of this character and came to the following conclusions.
1. The frequency of having Lobulus auriculae as determined with reference to all criteria is as follows:
Age 12-17 (_??_) 65.023±0.306% (_??_) 57.026±0.208%
2. The two groups were recognized as a hereditary character in human ear-lappets.
3. In order to decide the hereditary type of Lobulus auriculae, Weinberg's sib-method was applied to the children born by normal parents, the result showing the simple Mendelian recessiveness.
