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Show Flah Com mlaalou Experiments. Marshall McDonald, United States fish commicsioner, la making a compreheii-sive compreheii-sive experiment in oalt and fresh wator aquariums, lie has already oonstmoted several aquariums on the lower floor of the building, and etookod thera; and bo is now building a largo one, 130 feet long, under a separate roof . Tho commissioner Kiid to the correspondent, "1 am going to bring tho aettihoru to Washington, and assemble hero a full representation of our mnrino lifo." Ho hassiity or seventy species alrcudy c port Ing in suit and fresh water tanks, ono of tho latter containing specimons of tho cailiect type of fre&h water fish tho ganoids, Science. |