It is asserted by evolutionists that wings as organs of flight have been independently evolved in at least four different lines--namely, in insects, the fossil pterodactyls, birds and bats. That an organ so highly specialized as any one of these wings could be evolved seems improbable; while the evolution of the four different kinds, independently of each other, only increases the improbability. The difficulty, however, is to account for the evolution of any known kind of wing. In each case there exists the insuperable difficulty of preserving the organ through the rudimentary stages. The wings of an insect in the first generation of its evolution would be almost imperceptible and entirely useless for any purpose whatever, and so it would continue to be for a great number of generations. It is evident, therefore, that they could not have been preserved through their long rudimentary stage on the ground that they were useful, nor do we know of any theory that will account for their evolution. To say that they were evolved is easy, but to account for their evolution seems impossible. Fairhurst refers to the delicate and complex organs of spiders. "The organs which spiders possess for secreting material and for making a web could not have been gradually evolved. The whole apparatus involved in making the web would be useless until sufficiently developed to make a web. The same is true," he continues, "of the sting of the scorpion, the stings of bees, the mandibles of spiders with the gland of poisonous fluid at the base, and the poison apparatus of serpents. All of these glands for secreting poison would be useless until they could secrete a harmful fluid. The spurs of birds present further difficulties to the theory of evolution. Most birds have no spurs. When they possess them, as a rule the males alone have them well-developed, while they are rudimentary in the females. In some cases, however, both sexes possess them in a well-developed form. But how could a spur be evolved in either sex? As a rudiment, it would for many generations be entirely useless for any purpose, and consequently it would not be preserved by natural selection, nor in any other possible way, so far as I can see. The spurs are in the best possible position on the legs for combat. Why did they appear in the best place and nowhere else? As useless rudiments they would be quite as likely to survive in one place as in another. If spurs could not have been preserved by natural selection through their rudimentary stage, why assume that they have been evolved according to this law? If they could survive through the critical rudimentary period till they became of use, why not assume that their evolution was continued according to the same law? The fact is, however, that we know of no law according to which they could have been evolved." The bat is another highly specialized animal. In many respects it resembles the