All the ingenuity of all the evolutionists has been tasked in vain to produce any instance of the confusion of two such species, or of the production of a new true species by the intermixture of blood.

But they might just as well try to convert iron into gold, or sulphur into carbon.

In fact, evolution is the modern physiological form of the old chemical superstition, alchemy, substituting for the transmutation of metals the problem of the transmutation of animals.
It were endless to attempt to exhibit the impossibilities of crossing the gaps between the water-breathing fish and the air-breathing animal; between the flying-bird and the quadruped; between instinct and education; between brute selfishness and maternal affection; between the habits of the solitary and those of the gregarious, and those of the colonial insects and animals.

No one of these is accounted for satisfactorily by the theory of evolution.

But space forbids the attempt.
We only cite one other gulf which the theory can not cross: the gulf between the brute and the man.