EVIDENCE FROM BLOOD TESTS 81 



tigation, but after every allowance has been made, 

 these tests are very remarkable. 



The blood tests have brought very strong con- 

 firmation to the theory of evolution and from an 

 entirely unexpected quarter; they come as near to 

 giving a definite demonstration of the theory as we 

 are likely to find, until experimental zoology and 

 botany shall have been improved and perfected far 

 beyond their present state. 



