. Contributions to embryology. Embryology. btVELOPMENT OF EXTERNAL NOSE IN WTIITES AND NEGROES. 179 relative nasal height and 100 expresses the relative height of the upper lip, the latter, as a necessary consequence of the preceding, being greater in negroes than Table 4.—Relative increases in size. Age. Sitting Nasal height. height. 11th week 23 18 12th week 30 30 13th week 22 20 14th week 24 20 15th week 17 15 16th week 9 12 17th week 10 9 18th week 11 21 19th week 7 5 20th week 7 1 22d week 8 12 24th week 15 9 7th 10 7 8th 16 15 9th 13 6 10th month . . 17 9. /
. Contributions to embryology. Embryology. btVELOPMENT OF EXTERNAL NOSE IN WTIITES AND NEGROES. 179 relative nasal height and 100 expresses the relative height of the upper lip, the latter, as a necessary consequence of the preceding, being greater in negroes than Table 4.—Relative increases in size. Age. Sitting Nasal height. height. 11th week 23 18 12th week 30 30 13th week 22 20 14th week 24 20 15th week 17 15 16th week 9 12 17th week 10 9 18th week 11 21 19th week 7 5 20th week 7 1 22d week 8 12 24th week 15 9 7th 10 7 8th 16 15 9th 13 6 10th month . . 17 9. /Negro 13. 11 (5. (feiY 18 (J 20 22 2t 7 m"'iO l""^ odulf FiGCTRE 2.—Cur\'es of the average relative nasa! heights. in whites. The ranges of variation of the relative nasal height in the two races overlap each other extensively; therefore this index has but httle value in racial diagnosis except in extreme cases where the measurement exceeds , a number never found in negroes. A Japanese fetus of the eleventh week had a relative nasal height of , which is about equal to the corresponding figure in whites. The FiUpinos showed for this measurement the following values: eleventh week , fourteenth week , nineteenth week , and twenty-first week ; these are greater in the beginning, while later they are much smaller than the corresponding figures in whites. The Indians have for this index in the sixteenth week , in the eighteenth week , and in the twentieth week , the first figure being smaller, the latter two larger than the averages of corresponding ages in whites. Unfortunately, these cases are too few to warrant anj' conclusions, and are merely intended to place on record the measurements obtained in these rare specimens. Two fetuses of Macacus cynomolgus, sitting height 35 and 56 mm., measured by Toldt (1903), had relative nasal heights of and respectively, figures which are close to the upper extreme of tli
Size: 1917px × 1303px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarn, bookpublisherwashingtondc, booksubjectembryology
