1899 Journal of the American Medical Association (JAMA)  
office for examination. Shortly after placing the color skeins before them and having them sit down to watch the colors, the perspiration would roll off their faces, and they would appear to be very much frightened and often confused about the colors. Now, the boys that live in Omaha and who are acquainted with me, come to my office and pass the same examination without any trouble, without any sweating. Examinations with the color skeins are not a great success. In my own office I have a dark
more » ... fice I have a dark room in which I can test applicants with different colored lights. If an applicant fails with the colored skeins, I take him into the dark-room and use a flashlight, such as he would be required to use in his work, and I can then determine whether he is color-blind or not ; whether he can distinguish green, red, blue, and white, as he should be able to do in his work. Many of the applicants for railway service that we at first suspect to be colorblind are not. After passing an examination in the dark-room, and the excitement has subsided, these applicants will match the skeins without much trouble. If I understood the Doctor correctly, he stated in his paper that the old employes were allowed to wear glasses for distance. Dr. Pritchard-Yes, sir.
doi:10.1001/jama.1899.92450360006001b fatcat:fmtlwhzebbhcdcwth6kcvxiv4u