But while man is related in his type of structure to the higher animals, his contemporaries, it is undeniable that there are certain points in which he constitutes a new type; and if this consideration were properly weighed, I believe it would induce zoologists, notwithstanding the proverbial humility of the true man of science, to consider themselves much more widely separated from the brutes then even by the ordinal distinction above referred to. I would state this view of the matter thus:--It is in the lower animals a law that the bodily frame is provided with all necessary means of defence and attack, and with all necessary protection against external influences and assailants. In a very few cases, we have partial exceptions to this. A hermit-crab, for instance, has the hinder part of its body unprotected; and has, instead of armour, the instinct of using the cast-off shells of molluscs; yet even this animal has the usual strong claws of a crustacean, for defence in front. There are only a very few animals in which instinct thus takes the place of physical contrivances for defence or attack, and in these we find merely the usual unvarying instincts of the irrational animal. But in man, that which is the rare exception in all other animals, becomes the rule. He has no means of escape from danger, compared with those enjoyed by other animals no defensive armour, no natural protection from cold or heat, no effective weapons for attacking other animals. These disabilities would make him the most helpless of creatures, especially when taken in connection with his slow growth and long immaturity. His safety and his dominion over other animals, are secured by entirely new means, constituting a "new departure" in creation. Contrivance and inventive power, enabling him to utilise the objects and forces of nature, replace in him the material powers bestowed on lower animals. Obviously the structure of the human being is related to this, and so related to it as to place man in a different category altogether from any other animal. This consideration makes the derivation of man from brutes difficult to imagine. None of these latter appear even able to conceive or understand the modes of life and action of man. They do not need to attempt to emulate his powers, for they are themselves provided for in a different manner. They have no progressive nature like that of man. Their relations to things without are altogether limited to their structures and instincts. Man's relations are limited only by his powers of knowing and understanding. How then is it possible to conceive of an animal which is, so to speak, a mere living machine, parting with the physical contrivances necessary to its existence, and assuming the new role of intelligence and free action?