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Show New Domestic Animals Have Been Added by Modern Science to Be of Aid to Man How Important have become the new domestic animals added by modern mod-ern medical and biological science to the short list of creatures domesticated domesticat-ed by mankind in previous ages, say3 Dr. E. E. Free, Is Indicated by a recent re-cent warning of the Wistar institute of Philadelphia, concerning bogus strains of Wistar white rats believed to be on sale by unscrupulous dealers. The number of guinea pigs used as test animals In medical laboratories undoubtedly exceeds by many times the number of wild guinea pigs ever alive at once In their native South America. The tiny vinegar eels sometimes some-times seen under a microscope In old vinegar have been "domesticated" In at least one biological laboratory. At Yale there is a domesticated strain of the animalcules called paramecin, para-mecin, often found wild In ditch water. wa-ter. Prof. S. O. Mast of Johns Hopkins university has domesticated amebns, another lowly miscroseoplc creature of ditches and ponds. The small crablike crab-like creatures called Daphnias have been domesticated both as food for aquarium fish and as material for biological bio-logical experiments. The fruit fly called Drosophila is domesticated in scores of laboratories, where It Is used in studies of heredity. A new medical procedure is the treatment of certain bone diseases by living maggots of another an-other fly ; so that these, too, have Joined the bees as domesticated in-cects. in-cects. The Wistar Institute has domesticated domesti-cated for experimental purposes the opossum and the Mexican salamander or axolotL The chief laboratory animal, ani-mal, however, is the white rat; so useful use-ful that pedigrees are kept and purebred pure-bred strains established Just as Is done by breeders of pedigreeds horses or dogs. Pathfinder Magazine. "To Run the Gantlet" Gantlet, In this case, was originally gantlrie, meaning the passage between be-tween two tiles of soldiers. The reference ref-erence Is to a punishment formerly common among soldiers and sailors. The men were drawn up in two lines facing each other. All were provided with rope ends. The offender had to run down the lane thus formed, all men Inflicting punishment as he passed. |
