It is well to note the fact that, in considering the rights of the creatures below the level of man, we are dealing with a question which does not seem to have entered into the minds of the ancients. Such old phrases as "the merciful man is merciful to his beast" indicate that cruelty to the domesticated creatures was, in a way, reprobated by the ancients; but not until well on in the present century do we find any indication that reason had come to the help of pity in an effort to frame rules having the weight of law and the support of sanctions, either those of public opinion or the more direct penalties of the courts, to limit the conduct of men towards the lower animals. The great tide of mercy and justice which marks our modern civilization had first to break down the grievous and strongly founded evils of human slavery. Having effected that great work, the sympathetic motives are moving on to a similar conflict with the moral ills which arise from an improper treatment of those slaves of a lower estate, the domesticated animals. It is impossible to see our position in relation to the matter of the rights of animals without looking somewhat carefully into the intellectual and moral steps which have at length brought us to the consideration of the question. First let us note that while the rights of their fellows have been impressed on men by the precepts of religions, particularly by those of Christianity, the rules of conduct which guide us in our contacts with beings below the level of our species have never been determined by the canons of our faith, for the reason that they are the product of very modern conditions; they are the thought of our own time. New as are these tenets, however, they may fairly be received as but the last though not the final expression of that most interesting of all natural series--the succession in the development of sympathy which, step by step in the progress of organic life, has led from the original dull insensitiveness of the lower animals upwards to the outgoing spirit of man.