96 
THE VOYAGE OF H.M.S. CHALLENGER. 
whose index is intermediate are mesatikerJcic. Table XIL embodies this provisional 
arrangement, but, from the queries appended, it will be seen that I do not speak with 
confidence of the position of several of these races. 
Table XIL 
DOLICHOKERKIC. 
Mesatikerkic. 
Brachykerkic. 
Index 80 or upwards. 
Index 75 to 79. 
Index below 75. 
Andaman Islanders. 
Australians. 
Europeans. 
Negritos. 
Tasmanians. 
Lapps. 
Euegians. 
Polynesians. 
Esquimaux. 
Melanesians ? 
Melanesians 1 
Samoyed 1 
Kaffirs. 
Bushmen 1 
Negros. 
Hindoos. 
Sikh. 
Chinese. 
Malays 1 
American Indians. 
Professor Humphry pointed out several years ago, in his treatise on the Human 
Skeleton, that the Negro presented more numerous approximations to the proportions 
of the foetal than to those of the adult European, and that in the foetus the forearm has 
greater relative dimensions than the upper arm. M. Hamy has measured^ the upper limb 
in sixty- two European foetuses and children from 2^ months to 1 3^ years, and has found 
a gradually decreasing proportion in the length of the radius to the humerus as the age 
advanced. In a foetus of 2^ months, the proportion of radius was 8 8 '8, the humerus being- 
equal to 100 ; the mean proportion of radius in six foetuses from 4 to S.months was 80*4, 
and from 5 to 7 months 77 '6 ; the mean in eleven new-born infants was 76'2 ; the mean 
in seven infants from 21 to 30 days was 74*5 ; and the mean in six children from 5 to 
13| years was 72'3. Those races, therefore, in which the adults have dolichokerkic 
proportions, approximate, in the relations of the forearm to the upper arm, to the 
embryo of a European before the end of the 5th month ; those whose proportions are 
mesatikerkic to embryos after the 5th month and to new-born childi'en ; whilst those 
with brachykerkic proportions are like European children above 5 years of age and 
European adults. 
^ Eecherches sur les proportion^ du Bras et de I'Avant-bras aux differents ages de la Vie, Eevue d' Anthropologic, 
t. i. p. 79, 1872. 
