. A civic biology : presented in problems. Biology; Sanitation. 404 SOME GREAT NAMES IN BIOLOGY great research has given to the world a specific against the dread disease syphilis. Another name associated with the blood is that of Elias Metch- nikoff, a Russian. He was born in 1845. Metchnikoff first advanced the belief that the colorless blood corpuscles, or phagocytes, did service as the sanitary police of the body. He has found that there are several different kinds of colorless corpuscles, each having somewhat different work to do. Much of the modern work done by physiologists on the blood
. A civic biology : presented in problems. Biology; Sanitation. 404 SOME GREAT NAMES IN BIOLOGY great research has given to the world a specific against the dread disease syphilis. Another name associated with the blood is that of Elias Metch- nikoff, a Russian. He was born in 1845. Metchnikoff first advanced the belief that the colorless blood corpuscles, or phagocytes, did service as the sanitary police of the body. He has found that there are several different kinds of colorless corpuscles, each having somewhat different work to do. Much of the modern work done by physiologists on the blood are directly founded on the dis- coveries of Metchnikoff. Heredity and Evolution. Charles Darwin. - There is still an- other important line of investigation in biology that we have not mentioned. This is the doctrine of evolution and the allied dis- coveries along the line of heredity. The development or evolution of plants and animals from simpler forms to the many and present complex forms of life have a practical bearing on the betterment of plants and animals, in- cluding man himself. The one name indelibly associ- ated with the word evolu- tion is that of Charles Darwin. Charles Darwin was born on February 12, 1809, a son of well-to-do parents, in the pretty English village1 of Shrewsbury. As a boy he was verv fond of out-of- I. door life, was a collector of birds' eggs, stamps, coins, shells, and minerals. He was an ardent fisherman, and as a young man be- came an expert shot. His studies, those of the English classical school, were not altogether to his liking. It is not strange1, per- haps, that he was thought a very ordinary boy, because his in- terest in the out-of-doors led him to neglect his studies. Later he. Charles Darwin, the grand old man of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the origina
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