Show Ua ly SE E j Round Shoulders Corrected I L. L I I By Br DR MORRIS FISHBEIN Editor Journal of the American Medical Association tion and of the Health Magazine Cases in the courts sometimes cause unusual interest in scientific subjects At present nt there is much discussion of the case involving inheritance Inheritance in inheritance In- In of the color of the e eyes es It 1 has been well established that the thc color of the thc eyes Is inherited according accordI according accord accord- I ing to the law t I Mendel established the fact that the chromosomes which are structures structures structures tures within the cell from which the species develop carry with them certain certain certain tain definite characteristics Eye color color color col col- or is one of the characteristics carried carried carried car car- ried in this way It can be shown that the environment in which a a. person lives Jives his diet and other factors may modify to some extent the structure of his body No method Is known of altering eye color through environmental action The color of the hair for instance may be inherited but the color of the hair changes in later life due to various various vari vari- arious ous circumstances and experiences The color of the skin may be modified modi- modi fled fied by exposure to light Unfortunately for the direct n cation of this knowledge to specific cases there has been such tremendous tremendous tremendous dous mL mixture ture of human beings in inbreeding inbreeding breeding that it is practically impossible impossible impossible sible to U find human beings with eyes of absolutely pure color In other words eyes may be blue to ordinary appearances but pure blue eyes are so rare as to be almost absent Hence it is not possible to say because the eyes of both parents are arc blue that the child chUd will wUI have blue blueeyes blueeyes blueeyes eyes the reason being that the parents parents parents par par- have probably not pure blue blueeyes blueeyes blueeyes eyes and according to the Men Men- delian dellan law It would require pure blue blueeyes blueeyes blueeyes eyes to produce in every instance a eyed blue child If somewhere in the ancestry a apure apure apure pure blu blue eyed blue e ed person married a eyed brown-eyed person and four tour children result resulted d from the marriage one would be blue e eyed blue ed one eyed brown-eyed and two might be bluee eyed blue ed with traces of brown Thus eyed brown-eyed parents produce brown brown eyed children but also eyed blue-eyed children Short people have tall tau children and tall taU people have short children But Buta a a. family in which most of the thc members members mem mem- bers have ha been tall for long periods of time will wUl produce far more tall taU children than short ones The operations of heredity therefore there there- fore foro result on the whole In a a. certain degree of likeness or correlation be between between between be- be tween the characteristics of the parents parents parents par par- and the children but the re results results results re- re are aro averages which have ha to be applied on a large Jarge scale and which have to be interpreted with intelli intelli- gence |