Minutes of Proceedings. 
XXXI 
That the Boskop man is ancient seems to admit of no doubt ; but how 
ancient he is unfortunately we are unable to say. Greologically it is extremely 
difficult to make any correlation between the superficial deposits of South 
Africa and the glacial, inter-glacial and post-glacial beds of Europe, so that 
any statement as to the contemporaniety of the Boskop and Cro-Magnon 
men would be merely a hazard. 
If, however, the two are contemporaneous, they may have evolved quite 
apart from each other ; because when once man — no longer ape-man — has 
reached the stage represented, say, by the La Chapelle man, the variation in 
the species must perforce have brought out several types which may possibly 
have been contemporaneous in a geological sense, and yet separated from 
each other geographically ; and the separation and lack of intercourse would 
help to crystallise the peculiarities exhibited in the various regions. 
No palaeontologist can very well accept any other view, and on this 
assumption we arrive at the conclusion that in those far-off days there arose 
an autochthonous African man of the species Sapiens " — of which this 
Boskop skull may be a relic. 
On the other hand, if the Cro-Magnon and Boskop men were not 
contemporaneous, the two types are still sufficiently close to suggest that 
the one may be related to the other. If this be so, migration of the earlier 
type must have taken place, i.e., migration from Europe into South Africa, 
or vice versa. It is impossible to state which was the earlier until further 
evidence concerning such a migration is obtained, either by fresh discoveries 
on the time of march between the two places, or by a closer correlation of 
the superficial deposits of the two regions. 
A slightly-fossilised human jaw (exhibited by Mr. Haughton) shows strong 
affinities with the Bush type of the Kalahari, and throws little light on the 
origin of the Boskop man. But it is of great importance, as bearing on the 
great antiquity of the Bush race, which, although not comparable, to my 
thinking, with the much earlier stage of the Boskop man — I should probably 
say " woman " — is connected with an Aurignacian culture, an advanced 
culture, of which I gave you proofs in my last Presidential Address. No 
remains of the Aurignacian man, fossilised as this jaw proves to be, has, so 
far as I know, been found as yet. 
And thus we have in South Africa, now, two relics — which will play a 
very important part in the chronology of the human race. 
" The Elastic Arch continuous over Several Spans, capable only of Small 
Eotary Motions at the Supports." By A. N. Henderson ; communicated 
by Professor A. E. Snape. 
" The Heating Co-efficients of Eheostats and the Calculation of Eesistances 
for Currents of Short and Moderate Duration." By H. Bohle. 
Further Magnetic Observations in South Africa during the years 1914- 
1915." By J. C. Beattie. 
