Skeletal Remains of the Yukon

The first Yukon Indian skull measured was that of a half-chief of the Nulato group, collected in the early sixties by William H. Dall. There are now three records of this skull, originally and again now a Smithsonian specimen, one in Wyman ("Observations on Crania," Proc. Bost. Soc. Nat. Hist., 1868, XI, 452, No. 7530), one in the Otis "Catalogue" (35, No. 259), and one in Hrdlička's "Catalogue of Human Crania in the United States National Museum Collections" (p. 30, No. 242925). It is a normal, well-developed male skull, which gives no suggestion of mixture. The true measurements of this "type" specimen, taken by present-day instruments and methods, are as follows:

Yukon Indian skull No. 242925
Vault:
Lengthcm18.4
Breadthcm14
Height to bregmacm13.8
Cranial index76.1
Mean height index85.2
Height-breadth index98.6
Cranial module (mean diameter)cm15.40
Cranial capacityc. c.1,520
Face:
Menton-nasion (teeth but slightly worn)cm12.1
Alveolar point-nasioncm7.3
Diameter bizygomatic maximumcm14
Facial index, total86.4
Facial index, upper52.1
Facial angle69°
Alveolar angle53.5°
Orbits:
Right—
Heightcm3.25
Breadthcm4.2
Left—
Heightcm3.45
Breadthcm4
Mean index81
Nose:
Heightcm5.1
Breadthcm2.5
Index49
Upper alveolar arch:
Lengthcm5.7
Breadthcm6.7
Index85.1
Basio-facial diameters:
Basion-alveolar pointcm10.6
Basion-subnasal pointcm9.4
Basal-nasioncm10.5

The skull is seen to be mesocephalic, rather high, and of good brain capacity; the face is of medium Indian proportions; the orbits are unequal, rather low; the nose is of medium height and breadth; the upper dental arch, the basic-facial diameters, and the facial and alveolar angles, are all near medium Indian.

There was another Indian skull in the five Wyman reported, but its identity is uncertain. A later collection by Dall included three Indian female crania from Alaska, but their exact provenience is uncertain; their measurements are given in my catalogue.

On the 1926 trip I succeeded in collecting directly from the burials along the lower middle Yukon 17 adult skulls and skeletons. Such material is both scarce and difficult to obtain, due to the attitude of the Indians. All the specimens in the collection are from the Russian times on the river. A few of the skulls show traces of Eskimoid in their features, but none offer a suspicion of a mixture with the whites. The measurements are given below. They partly agree, partly disagree, with those of the Nulato skull. The vault, the breadth of the nose, the dimensions of the dental arch, are much alike, but the height of the face, nose, and orbits in the Nulato specimen is somewhat lower. These may be tribal but also simply individual differences. We may generalize by stating that the lower middle Yukon Indian was mesocephalic, with a fairly high vault, and moderate capacity. The face was of relatively good height but moderate breadth, resulting in a high upper facial index. Facial and alveolar prognathism and other features approach the prevalent Indian medium.

LOWER MIDDLE YUKON INDIAN CRANIA
SEX: MALE
Catalogue No.CollectionLocalityApproximate age of subjectVault: Diameter antero-posterior maximum (glabella ad maximum)Diameter lateral maximumBasion-bregma heightCranial indexMean height indexHeight-breadth indexCranial moduleCapacity, in c. c. (Hrdlička's method)
332512A. HrdličkaMagi (Bonasila)Adults18.413.814.075.087.0101.415.401,480
332517doGhost Creek, near Holy Cross.do18.113.813.476.283.897.115.101,375
332514dododo18.013.914.077.287.5100.715.301,425
332503doGreyling River (above Anvik).do[28](17.3)(13.4)(12.7)77.582.594.8(14.47)(1,220)
332507doGhost Creekdo18.214.113.277.581.593.615.171,480
332526dododo18.514.413.777.883.595.115.53
339752H. W. Kriegerdodo17.513.913.579.486.097.114.971,515
332502A. Hrdličkadodo17.814.213.379.883.193.715.101,370
(7)(7)(7)(7)(7)(7)(7)(6)
Total126.598.195.1106.578,645
Average18.0714.0113.5977.584.796.915.221,441
Minimum17.513.813.275.081.593.614.971,370
Maximum18.514.414.079.887.5101.415.531,515
Catalogue No.Teeth: Wear menton-nasion height (a)Alveolar point-nasion height (b)Diameter bizygomatic maximum (c)Facial index, total (a × 100)
c
Facial index, upper (b × 100)
c
Basion-alveolar pointBasion-subnasal pointBasion-nasionFacial angleAlveolar angleHeight of symphysis
332512[28]12.37.513.491.85610.28.910.268.5513.9
3325177.413.455.210.28.99.764.551.54
332514[29]137.713.397.757.910.29.410.46963.54.5
332503[30]12.88.113.694.159.610.59.510.466.559.53.7
332507[31]14.18.6103.7
33252610.4
332552[32]13.68.810.13.8
332502[28]138.114.192.257.410.49.29.762534.2
(4)(5)(5)(4)(5)(5)(7)(8)(5)(5)(7)
Totals51.138.867.851.563.380.927.8
Averages12.787.7613.5693.957.210.39.0410.1166553.97
Minimum12.37.413.391.855.210.28.69.762513.7
Maximum138.114.197.759.610.59.510.46963.54.5
(7)
Totals95.5
Averages13.64
Minimum13.3
Maximum14.1

Catalogue No.Orbits: Height, right, leftBreadth, right, leftOrbital index, meanNose: HeightBreadth, maximumNasal indexPalate: external length (a)External breadth, maximum (b)Palatal index (b × 100)
a
3325123.65
3.65
3.8
3.8
965.32.5548.15.56.485.9
3325173.35
3.45
3.9
3.8
88.352.6525.66.586.2
3325143.5
3.5
3.7
3.7
94.65.52.341.85.3775.7
3325033.65
3.6
4
3.95
91.25.72.45435.46.385.7
3325073.75
3.7
3.85
3.95
95.55.22.548.1
332526
3325523.5
3.5
3.9
3.9
5.352.5
3325023.45
3.4
4.15
4
845.82.9550.95.96.590.8
Right(7)(7)(7)
Left(7)(7)(7)(7)(7)(7)(5)(5)(5)
Totalsr. 24.85
l. 24.80
27.30
27.10
37.8517.8527.732.7
Averagesr. 3.55
l. 3.54
3.90
3.87
91
91.5
5.412.5547.25.546.5484.7
Minimumr. 3.35
l. 3.4
3.7
3.7
52.341.85.36.375.7
Maximumr. 3.75
l. 3.7
4.15
4
5.82.95525.9790.8
SEX: FEMALE
Catalogue No.CollectionLocalityApproximate age of subjectVault: Diameter antero-posterior maximum (glabella ad maximum)Diameter lateral maximumBasion-bregma heightCranial indexMean height indexHeight-breadth indexCranial moduleCapacity, in c. c. (Hrdlička's method)
332506A. HrdličkaMagi (Bonasila)Adult18.213.413.173.682.997.814.901,400
332520doGhost Creekdo17.913.212.773.781.496.214.601,335
332508doMagido17.212.813.174.487.3102.314.371,225
332519doGhost Creekdo16.212.312.375.986.6100.013.601,070
332510doMagido17.613.513.276.784.697.814.771,375
332504dododo17.913.813.577.185.497.815.071,355
332525doGhost Creekdo17.413.512.577.681.292.614.471,260
332525doMagido17.213.412.677.982.494.014.401,230
332522doNovi Riverdo16.713.412.880.285.395.514.301,210
339751H. W. KriegerMagido16.413.412.681.784.694.014.131,210
(10)(10)(10)(10)(10)(10)(10)(10)
Totals172.7132.7128.4144.612,670
Averages17.2713.2712.8476.884.196.814.461,267
Minimum16.412.312.373.681.292.613.601,070
Maximum18.213.813.581.787.3102.315.071,400

Catalogue No.Teeth: Wear menton-nasion height (a)Alveolar point-nasion height (b)Diameter bizygomatic maximum (c)Facial index, total (a × 100)
c
Facial index, upper (b × 100)
c
Basion-alveolar pointBasion-subnasal pointBasion-nasionFacial angleAlveolar angleHeight of symphysis
332506[34]12.17.512.795.359.19.98.8-10-69-543.8
3325206.913.351.910.69.49.7-63-52
332508[35]10.8-712.685.755.69.68.59.9-71-51-3
3325196.712.155.49.37.88.864.542.5
332510+11.6-7-1296.758.39.78.49.5-67-513.7
332504[34]13.1-813.691.85610.49.110.5-6854.53.9
332525[36]12.98.79.93.6
332505[37]11.86.812.892.253.19.58.49.6-70-513.7
3225227.113.354.19.28.6-1074.5-64
332751[38]116.713.1-8451.19.68.59.3-6748.53.35
(6)(9)(10)(6)(9)(9)(10)(10)(9)(9)(7)
Totals70.463.7128.487.886.297.225.05
Averages11.737.0812.8491.755.19.768.629.72-68-523.58
Minimum10.86.7-12-8451.19.27.88.8-6342.5-3
Maximum13.1-813.696.759.110.69.410.574.5-643.9
Catalogue No.Orbits: Height, right, leftBreadth, right, leftOrbital index, meanNose: HeightBreadth, maximumNasal indexPalate: external length (a)External breadth, maximum (b)Palatal index (b × 100)
a
3325063.55
3.6
3.8
3.8
94.15.52.2405.26.185.2
3325203.3
3.4
3.7
3.7
90.54.752.450.55.4690
3325083.7
——
4
——
92.55.22.548.15.25.889.7
3325193.4
3.5
3.7
3.65
93.94.72.348.95.45.598.2
3325103.3
3.2
3.55
3.55
91.64.72.348.95.36.482.8
3325043.7
3.65
3.95
4.05
91.95.42.1539.85.76.785.1
332525——
3.25
——
3.8
85.55.152.242.7
3325053.8
3.6
3.95
3.85
94.04.92.35485.35.891.4
3325223.7
3.6
3.95
3.95
92.45.452.342.256.675.8
3327513.1
3.2
3.8
3.7
8452.4485.36.581.5
Right(9)(9)(9)
Left(9)(9)(9)(10)(10)(10)(9)(9)(9)
Totalr. 31.55
l. 31
34.4
34.05
50.7523.147.855.4
Average r. 3.51
l. 3.44
3.82
3.78
91.7
91
5.072.3145.55.316.1686.3
Minimumr. 3.1
l. 3.2
3.55
3.55
4.72.1539.855.575.8
Maximumr. 3.8
l. 3.65
4
4.05
5.52.550.55.76.798.2