In another way these questions enter into our social and commercial life. The rights of property in the migrant or semi-migrant forms of life have biologic as well as legal basis and some quite peculiar legal decisions would doubtless have been very different had the biology been appreciated. The classification of turtles as ‘vermin’ since they are neither fish nor fowl may be given as a case in point. Equally absurd and sometimes more disastrous are some of the rulings by customs officers whose knowledge of biology was doubtless derived from a Greek lexicon or some equally good authority. Such quarantine restrictions as have been imposed upon certain products by some governments show total lack of knowledge as to the possible conditions of injurious transportation or else the misapplication of them to serve some special end. The exclusion of American pork and American fruits from certain countries, the controversy over the fur seals in Alaska, the inconsistent laws of states or nations regarding game, are some of the instances where it is evident that the law-making power and the agents of diplomacy need to be re-enforced with definite biological knowledge. But there is another phase quite distinct from the purely utilitarian. Biological science opens up to us the facts of life and solves some of the questions of the greatest interest to mankind. What is life? What its origin? What are the factors that have controlled its development and the wonderful complexities which we observe in its distribution and adaptations? Are the forces that operate in the living organism merely physical, mechanical and chemical or are there activities inherent in life itself or that operate only in the presence of the life containing complex? Certainly, in no other branch of science are there problems more inviting. In no other has present knowledge given greater inspiration or greater intellectual service to mankind. The field for acquisition of knowledge widens with each new discovery. We no sooner gain foothold in some hitherto unexplored realm than we become conscious that beyond this lie still other realms, knowledge of which has been dependent on knowledge of the routes by which they may be reached.