IN THE DIFFERENT RACES OF MAN. 
521 
3. Negroes of Tribes unknown. — These continental Negroes slightly exceed the insular 
Guanches in brain- weight. There are 16 skulls, three-fourths of which are those of 
men, and the general mean brain-weight is 44-08 oz., or 1249 grms. 
The individual crania of different tribes, of which there are many, give different brain- 
weights, varying among the men from 46-92 oz., or 1330 grms., a Joloff and a Serryia, 
both Tribes of the Gambia, to 41-60 oz., or 1179 grms., a Fantee. There are but two 
of women, a Fantee 39-11 oz., or 1108 grms., and a Mandingoe only 34-15 oz., or 968 
grms. These brain-weights deserve to be recorded, but are not sufficiently numerous to 
be of much value. 
10. Nahomans. — These 12 crania, of which three-fourths are those of men, and the 
rest belonged to the Amazonian soldiers of the King of Dahomey, present a higher 
general mean at 46*34 oz., or 1313 grms. 
14. Bcikeles. — A warlike Tribe on the Equator, of whom there are seven specimens, 
a majority of which are those of women, present a general mean of the series equal to 
the Daliomans, viz. 46 - 41 oz., or 1315 grms. 
It may be convenient in this place to express the general means of the series of all 
these Negro Tribes, from 3. Negroes of Tribes unknown to 21. Manganja. The mean 
brain-weights of the 38 men is 45"88 oz., or 1300 grms. That of the 31 women is 
41-06 oz., or 1164 grms. And the mean of both sexes is 43-47 oz., or 1232 grms. This 
is a surprisingly small weight of brain, when we call to mind the assertions of Professor 
Tiedemann upon this subject. 
The only Negro brain actually weighed by Professor Tiedemann appears to have been 
that of “ Honore,” who died at Liege, in 1834, whose brain was preserved in spirits of 
wine and sent to Tiedemann. He used Nuremberg apothecaries weight in his experi- 
ments, which he seems to have regarded as equal to our troy weight, but this is not the 
case*. From the fact of the great change undergone by Honore’s brain by hardening 
in spirit, and the confusion of weights, it is not desirable to dwell upon this observation. 
The errors into which this distinguished physiologist was led by his sympathies for the 
Negro race, and which have been so often pointed out, render it advisable that we should 
refer to more reliable authorities. 
Dr. Peacock has weighed the brains of 5 Negroes and given a Table, into which he has 
introduced two observations of Professor John Reid. The average brain-weight of the 
men is 44-34 oz., or 1257 grms., that of the women 43-50 oz., or 1233 grms., and the 
mean of the sexes 43-92 oz., or 1245 grms.f. This result of actual weighing is exactly 
13 grms. more than our mean of the sexes. The brain of a Negro weighed by Professor 
Paul Broca was found to be 925 grms. ; but this is not to be regarded as a satisfactory 
* The Nuremberg apothecaries weight stands in relation to English apothecaries weight as 357854 to 373095. 
Balbi, “ Abrege de Geographie,” 1833, Tableau Comparatif des Monnaies, et des Poids et Mesures, pp. 1355 
and 1295. 
t “ On the Weight of the Brain of the Negro,” Memoirs of the Anthropological Society of London, vol. i. 
pp. 65 and 520. 
4 c 2 
