Developmental biology took shape between 1880 and the 1920s Basic concepts like the developmental role of chromosomes and the germ plasm (today's genome), self differentiation, embryonic regulation and induction, gradients and organizers hail from that period; indeed, the discipline was defined as a whole by the programmatic writings of Wilhelm Roux as early as 1889. The present essays cover the period up to the Nobel prize-winning work of Hans Spemann and Hilde Mangold. They were originally published in Roux's Archives of Developmental Biology, from Vol. 200 onward to the journal's centennial issues in 1995/96. The essays aim at introducing current adepts of developmental biology to observations and experiments that have lead their predecessors towards basic concepts still influential today.

This is Jerry's life-story of finding God and growing with Him until He became a personal all powerful loving Father. Jerry grew up in the slums unable to speak because of stuttering. He encountered many struggles with challenging problems but still earned two University degrees in engineering. Life was an adventure as he expanded his knowledge and understanding of God. Hateful and lying people tried to disrupt his life. God's Devine intervention helped him to understand life's major truths. These experiences helped Jerry walk in happiness daily with God. Extensive Bible and engineering education prepared him to develop a scientific theory. His theory in summary states: "There is a loving and personal God, His Son and Spirit exist and guide us daily." Jerry's proof used the same method Einstein used to prove his "Theory of Relativity." If you desire to have a joy and peace that passes all human understanding, this book will help you to arrive there. Your excitement here on Earth is only the beginning. A more exciting and fantastic eternity is coming.