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Text Sermons : ~Other Speakers S-Z : George Warnock : Metamorphosis

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Sometime in the middle of this century we read of a young Harvard scientist who had spent many hours making various experiments with the silkworm, in an attempt to discover the secret of metamorphosis. After some ten years of tedious experiments he discovered the secret. By dividing the worm into segments, and watching to see which sections went into metamorphosis and which remained the same, he discovered that there were two hormone-producing centers in the worm, one in the brain and the other in the thorax; and that these hormone centers caused the worm to change form. Neither could cause metamorphosis working by itself, but together they did. Briefly this is how he made his discoveries. Removing the brains from the caterpillars he found that they would live on, but only as worms. No change would take place. Then after implanting a bit of the brain containing the hormone, metamorphosis would begin to take place. But if after implanting the hormone in the brain the worm was immediately tied off in the center, no change would occur. This proved that the worm could derive no benefit from the hormone in the head alone; it had to work in conjunction with the thorax. So if he allowed a certain amount of time to elapse after implanting some of the brain before he tied the worm in the center, the worm would go into full metamorphosis on both sides of the knot. By these and similar experiments he effectively proved that two hormone centers were involved in the process, and that it was the brain hormone that triggered the thoracic center into action.

What a beautiful illustration from nature of the wonderful truth concerning transformation! We believe we are going to discover many wonderful truths in the world about us as we go on with the Lord. In the early part of the human race this was the only Bible men had, and yet God said He was clearly revealed in the things that He had made. "For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made" (Rom. 1:20). The reason men do not see Him there now is because of the apostasy and the blindness that has overpowered the human race through sin and unbelief.





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