388 ANNUAL OF SCIENTIFIC DISCOVERY. 



of the features, the hair, etc., established by Blumenbach. The five races 

 thus established are distributed as follows : 



1. THE CAUCASIAN (28 85 per cent.) In Europe, the entire popula- 



tion with the exception of the Fins and Lap- 

 landers. - 270,000,000 



In Asia Turks 15; Arabs 5; Persians, etc. 11; 

 Siberian, in part, 3; foreigners in Eastern 



Asia 2, 36,000,000 



In Africa Foreigners in the colonies, and Arabs, 4,000,000 



In America All except the Indian, 58,000,00(1 



In Australia Foreigners on all Islands,. 1,000.000 



Total, 369,000,000 



2. THE MO3fGOLiA2f (40-61 per cent.) Principally in Asia, including 



China, the greater part of India, Central Asia, 



and part of Siberia, 522,000.000 



3. THE ETHIOPIAN (15-08 per cent.) The entire population, with 



the exception of the Caucasians, as above, 196,000.000 



4. THE AMZPacAN (0 OS per cent.) The Indians of America, 1,000,000 



5. THE MALAY (15-38 per cent.) In the Indian Islands, 80; East 



India, 84; Japan, 35; and Australia, 1, 200,000.000 



Grand Total, 1.288,000,000 



The division according to creeds is full of interesting detail. The leading 

 footings, taken on the round number of 1,300,000,000, as the total population 

 of the earth, are : 



Christians, 335,000.000 or 25-77 per cent. 



Jews, 5,000,000 " 038 " 



Asiatic Religions, 6GO,000,000 " 46-15 " 



Mohammedan, 160,000.000 " 12-31 " 



Pagans, 200,000.000 " 1539 " 



Total, 1,300,000.000 or 100 per cent. 



The 335,000,000 of Christians are again divided into : 



Roman Catholics, 170.000,000 or 50.7 per cent. 



Protestants, 89X00.000 " 26.6 



Greek Catholics, 76,000.000 " 227 " 



Total, 335,000,000 or 100 per cent. 



The conscientious author of the very elaborate paper from which we have 

 made these extracts, is of opinion, that although much uncertainty attaches 

 to the positive numbers given under the various heads, yet so manifold have 

 been his sources of comparisons, that the general results, in proportions of 

 population, race, or creed, may be adopted as correct. 



BLOOD-STAINS AND BLOOD-CRYSTALS. 



At a recent meeting of the Philadelphia Academy, Dr. Mitchell made some 

 interesting statements in respect to the importance of the study of blood- 

 crystals in connection with the medico-legal study of the blood, and the 

 examination of blood-stains. Dr. M. remarked upon the difficulty of dis- 



