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POPULAR SCIENCE REVIEW. 
inference that, in regard to the same brain, he represented it as showing 
one structure in 1861, and another in 1862 ; and in a lengthy letter ad- 
dressed to the Athenaeum, he endeavours to explain the circumstances. Sir 
Charles Lyell, in reply, expressing every desire to retract any exaggerated 
statement which he may have made, admits only one unimportant error, 
and, quoting from the published reports of Professor Owen’s papers, con- 
firms his original statements. These letters have also called forth others 
from Professor Rolleston of Oxford, and Mr. Flower of the Royal College 
of Surgeons. The former takes exception to three points referred to in 
Professor Owen’s letter, and the latter is adduced by Sir Charles Lyell as 
a witness on his own behalf, to prove that the representation of the brain 
of a chimpanzee put before the public by Professor Owen in support of 
his views was an inaccurate one, in which the hemispheres had so glided 
apart that one was actually a quarter of an inch longer than the other, and 
that the figure was thus distorted, and the two dimensions of each hemi- 
sphere were not given. 
The Ape-Origin of Man. — The supporters of this doctrine will be 
delighted with the conclusions enunciated by Professor Huxley, in his 
work just published on “ Man’s Place in Nature,” who says that the 
sagacious foresight of the great lawgiver of systematic zoology, Linnseus, 
becomes justified, and a century of anatomical research brings us back to 
his conclusion that man is a member of the same order (for which the 
Linnaean term Primates ought to be retained) aS the apes and lemurs. 
Professor Huxley, however, admits a chasm between man and the ape, 
which it would be no less wrong than absurd to deny; but it is at least 
equally wrong and absurd to exaggerate its magnitude. Although, how- 
ever, the anatomical test is of such a character that Wagner, in his paper 
on the structure of the brain in man and monkeys (in the Archiv. fur 
Naturgeschiehte, 1861 ), did not meet the objections of Huxley ; though 
always remarking that Man is distinct from the Quadrumana, the objections 
brought forward by Huxley tend rather against the separation of Man in 
the special division assigned to him (viz., Archencephala) than against 
the separation itself. 
Population of the Globe. — The Abeille Medicals gives some curious 
statistics upon this point from the most recent calculations. The earth is 
inhabited by 1,288 millions of inhabitants — viz., 369 millions of Cau- 
casians, 552 millions of Mongolians, 190 millions of Ethiopians, 1 million 
of American Indians, and 200 millions of Malays. All these speak 3,064 
languages, and profess 1,000 different forms of religion. The number of 
deaths per annum is 333,333,333, or 91,954 per diem, 3,730 per hour, 60 
per minute, or one per second ; so that at every pulsation of our heart a 
human being dies. This loss is compensated by an equal number of births. 
The average duration of human life throughout the globe is thirty-three 
years, but one-fourth of the population dies before the seventh year, and 
one-half before the seventeenth ; but of 10,000 persons, only one reaches 
the hundredth year, while one in 500 attains the eightieth, and one in 100 
the sixty-fifth. 
Psychical Distinction of the Races of Man. — Mr. R. Dunn read a paper 
before the Ethnological Society upon this subject, maintaining that the 
