Hearing acuity variation among Negroes and Whites

References

• Bunch , C. C. and Raiford , T. S. 1931 . Race and sex variations in auditory acuity . Arch. Otolaryngol , 13 : 423 – 434 .
   Google Scholar
• Dahlberg , A. A. 1960 . Clinical aging patterns in teeth of different population groups . Aging , : 357 – 366 .
   Google Scholar
• Dahlberg , A. A. 1963 . Dental evolution and culture . Human Biol. , 35 : 237 – 249 .
   PubMedGoogle Scholar
• Dronamraju , K. R. and Khan , P. Meera . 1963 . Frequency of colour blindness among the tribal and non‐tribal peoples of Andhra‐Pradesh . Ann. Hu. Genet. , 27 : 17 – 22 .
   PubMedGoogle Scholar
• Duke‐Elder , W. S. 1949 . Textbook of Ophthalmology , Vol. IV , 4249 – 4251 . St. Louis : The C. V. Mosby Co. .
   Google Scholar
• Eagles , E. L. and Wishik , S. M. 1961 . A study of hearing in children . Trans. Am. Acad. Opth. & Otolaryngol. , May‐June : 260 – 296 .
   Google Scholar
• Eagles, E. L. 1962. Personal communication.
   Google Scholar
• Glass , B. 1955 . On the unlikelihood of significant mixture of genes from the North American Indians in the present composition of the Negroes of the United States . Am. J. Hu. Gen. , 7 : 368 – 385 .
   PubMed Web of Science ®Google Scholar
• Huizinga , E. G. 1958 . The whispered voice . Ann. Otol. , 67 : 72 – 76 .
   Google Scholar
• Karpinos , B. D. 1944 . Visual acuity of selectees and army inductees . Human Biol. , 16 : 1 – 14 .
   Google Scholar
• Love , A. G. , Hamilton , E. L. and Hellman , I. L. 1958 . Tabulating equipment and Army Medical Statistics. Office of the Surgeon General , Dept. of the Army .
   Google Scholar
• Miller , R. W. 1963 . Distant visual acuity loss among Japanese grammar school children . J. Chron. Dis. , 16 : 31 – 54 .
   Google Scholar
• Montgomery , H. C. 1939 . Analysis of world's fairs hearing tests . Belt Lab. Record , 18 : 98 – 103 .
   Google Scholar
• Montgomery, H. C. 1962. Personal communication.
   Google Scholar
• Neel , J. V. and Post , R. H. 1963 . Transitory “positive” selection for colorblindness? . Eugen. Quart. , 10 : 33 – 35 .
   PubMed Web of Science ®Google Scholar
• Post , R. H. 1962a . Population differences in red and green color vision deficiency . Eugen. Quart. , 9 : 131 – 146 . 84 – 85 . 10:
   PubMedGoogle Scholar
• Post , R. H. 1962b . Population differences in vision acuity . Eugen. Quart. , 9 : 189 – 212 .
   PubMed Web of Science ®Google Scholar
• Roberts , D. F. 1955 . The dynamics of racial intermixture in the American Negro: Some anthropological considerations . Am. J. Hu. Gen. , 7 : 361 – 367 .
   PubMed Web of Science ®Google Scholar
• Rosen , S. , Bergman , M. , Plester , D. , El‐Mofty , Aly and Satti , Mohamed Hamad . 1962 . Presbycusis study of a relatively noise‐free population in the Sudan . Annals of Otol., Rhinol. and Laryngol., , 71 (3) : 727 – 743 .
   Web of Science ®Google Scholar
• _____ , Plester , D. , El‐Mofty , Aly and Rosen , H. V. 1964 . High frequency audiometry in presbycusis . Arch. Otolaryng. , 79 : 18 – 32 .
   Google Scholar
• Sorsby , A. , Sheridan , M. and Leary , G. A. 1962 . Refraction and its components in twins . Med. Res. Council (Gt. Brit.) , Special Report Series, No. 303’.
   Google Scholar
• Steinberg , J. C. , Montgomery , H. C. and Gardner , M. B. 1940 . Results of the world's fair hearing tests . J. Acoust. Soc. Am. , 12 : 291 – 301 .
   Google Scholar
• Stevenson , A. C. and Cheeseman , E. A. 1955 . Hereditary deaf mutism, with particular reference to Northern Ireland . Ann. Hu. Gen. , 20 : 177 – 231 .
   Google Scholar
• United States Statistics . 1945 . Periodic Reports of Physical Examination. National Headquarters, selective service system, 1940–1944 (A series of 25 volumes. Vols. 1–3 are entitled “Summary and Detailed Reports” Vols. 4–14, “Principal Defects” Vols. 15–25, “All recorded defects reports.” Sections, subdivisions and pages are not numbered; the volumes are photostatic copies of forms bearing data, some of them with brief explanations.)
   Google Scholar
• Wedenberg , E. 1958 . Hereditary background of auditory impairment . Acta Otolar., Stock. , 49 : 451 – 452 .
   PubMedGoogle Scholar