376 



ETHNOLOGY. 



human remains from tlie cave on Wind-mill Hill, Gibraltar,* giving to 

 it the name of " platycnemic." M. Broea, in May, 1864, independently, 

 observed the same condition in tibiw from Chamant and Maintenon, in 

 France.t 



Similar bones were noticed at Montmartre, by M. Bertrand. Professor 

 Wyman found the same peculiarity in tihice from the Florida mounds, 

 in this country, and it was through the last-named gentleman that my 

 attention was called to the subject, some bones which I had procured 

 from the mound on Rouge Eiver, in Michigan, first establishing the 

 fact that this platycnemism was a characteristic of the northern tribes 

 of aboriginal man on this continent. Discoveries of flattened tihice have 

 also been made in Kentucky and Tennessee ; while the mound I have 

 mentioned as occurring on Chambers Island adds Wisconsin to the list; 

 and I have lately been informed of like discoveries having recently been 

 made at Davenport, Iowa. 



The following table gives the proportions of the UMw from Denbigh- 

 shire, as taken by Professor Busk, with slight corrections, which I have 

 made in revising the computations : 



Table IV. — Dimensions, ^-c, of txbice from PertJii-CJncaren, Wales. 



7\ 



53 



.2 3 

 © 3 



ig 

 U 



6 

 o 



g 



a 



o 

 u 



'3 



i 

 1-! 



Antero-posterior di- 

 ameter and trans- 

 verse diameter of 

 sbaft. 



s 



'a 



a 

 1 



1 



1-1 



1 



3 

 4 



5 

 6 



14.9 

 13.7 

 13.2 

 12.9 

 12.9 



2.8 

 2.7 

 3.0 

 2.5 

 2.5 



3.2 

 2.9 

 3.0 

 2.5 

 2.75 



140 by 80 

 120 by 75 

 135 by 80 

 125 by 70 

 100 by 70 

 135 by 90 

 140 by 90 

 130 by 70 

 135 by 85 



0.214 

 0.211 

 0. 227 

 0.193 

 0.213 



0. 571 

 0.625 

 0.592 

 0.541 

 0.700 

 0.666 



-.7 











0. 642 



8 











0. 538 



9 











0.629 















Mean 



13.5 



2.7 



2.87 



129 by 79 



0.212 



0.612 



As before explained, the latitudinal index designates in each instance 

 the amount of flattening of the bone; the perimetral index represent-, 

 ing, with some approach to exactness, the thickness or bulk of the shaft ; 

 and on a comparison of the preceding table, giving the proportions of 

 those ancient tibim from Wales, with the tables in which I have given 

 ithe dimensions of the tihim from the mounds on the Detroit and Rouge 

 Rivers, the greater i)latycnemism of the latter bones will at once be 

 apparent. 



A further comparison with the normal form of the ordinary English 

 UMw is aflPorded by the subjoined table, prepared by Professor Busk, 



* Transactious of the International Congress of Prehistoric Archfeology for 1868. p. 

 ,161. 



tM(5moires sur les oseemens cles Eyzies : Paris, 1868. Reliquiae Aquitanicse, p. 97. 



