oo BUREAU OF AMERICAN ETHNOLOGY [BULL. 33 
as of a low type, must be classed with crania from the Illinois River 
mounds, with which it has much in common. The differences are not 
sufficient to indicate any distinct cranial variety, and the specimen 
can not properly be regarded as evidence of a geologically early man 
in North America. 
Measurements of the Rock Bluff skull and of four masculine Indian crania from mounds 
along the Illinois river. / 
| Cat. no. 
4401 (** no. 
es Cat. no. | Cat. no. | Cat. no. Se caEEye 
rari 242966. 136773. 242982. Davenport 
Academy 
of Sciences. 
Diameter antero-posterior maximum, centime- 
WEDS Sa stan te chee tee baes Donen ee eee omc ease 19.5 Ost 20.3 iW Are) 17.45 
Dor aromvrophry.oueeees sae == e centimeters. . 19.0 19.0 20.0 NAC A Reese picicoc 
Diameter lateral maximum ............--. dotee- IB SYS 13.6 1 SSL 13.6 13. 4 
Cephalichndexiss fesse ceemcee dance seen eee eeee 70.3 71.2 64.5 76.4 76.8 
Basion-bregma height ..........-..- centimeters. . 1B B} 13.9 (2) 13.4 13.4 
Heig hit ot Osenaascce sete ee ee eee ee dozs.- 5. 25 5,10 aHy5) 5. 25 DADD 
Maximum breadth of nose................. do.... 2.65 2.80 2.80 2.50 2.40 
INaisalbin G ext ee tones sac ositace ce eran coon sine 50.5 54.9 53.3 47.6 43.3 
Heightiof night orbites----2----.. 4. centimeters. . 3.3 a0 3.2 3.4 (0) 
Breadthro& rightionbitesss-e-sseeesee esses ee doss=- 4.0 3.65 3.9 BEE) |ReGcsoocc pate 
Indexof nehtiorbitiy-sns tocce sess seme ee eee 82.5 90.4 82.1 Mfiard racibecoscsca 
Diameter frontal minimum .....-- centimeters. - 9.7 9.2 9.0 eid 8.7 
Thickness of left parietal.........-. millimeters. - 5-6 6-8 5-7 5-6 6-8 
Circumference maximum, above ridges, centi- 
WMA CUCIS -ciectaie sete ea Oe rien einianinteieoeinie See ea iseree 52.5 isy-Acal || 52.3 vt el Bcmraceaccanc 
Cranial’ capacity 222-3... -4--- cubic centimeters. .| 1,430 1,425 (?) 1,260, “||eossscemesere 
aSeveral of Schmidt’s measurements of the Rock Bluff skull, particularly that of the breadth of the 
specimen, are inaccurate, in all probability on account of a defective instrument. 
b Damaged. 
XI.—THE MAN OF PENON 
The remains of the so-called man of Penon consist of a portion of 
the skull and of fragments of other parts of a skeleton, embedded 
in a variety of limestone, discovered accidentally in 1884 in the 
Valley of Mexico. It was reported on in the following year by 
Mariano Barcena,’ and in 1886 the find was described by Barcena 
and Antonio del Castillo in La Naturaleza, in Mexico. The essential 
¢ Mariano Barcena, Notice of Some Human Remains Found near the City of Mexico, 
The American Naturalist, x1x, 739-744, August, 1885; also, by same author, The 
Fossil Man of Pefon, Mexico, ibid., xx, 633-635, July, 1886; Noticia acerea del hallazgo 
de restos humanos prehistoricos en el Valle de Mexico, por Mariano Barcena y Antonio 
del Castillo, La Naturaleza, vit, 256-264, entrega 16, Mexico, 1866; Nuevos datos acerca 
de la antiguedad del hombre, en el Valle de Mexico, por Mariano Barcena, ibid., 17, 
265-270, Mexico, 1886; Discusiones acerca del hombre del Penon: Carta del Prof. New- 
berry al editor de La Tribuna, ibid., 18, 284-285, Mexico, 1886; Contestacion a las 
observaciones de la carta anterior, por Mariano Barcena, ibid., 286-288. 
a 
