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Ashes to ashes, dust to dust. By what miracle can an assortment of seemingly unrelated particles come together and correctly assemble to form a human being? Amazingly, once aggregated, these atoms, molecules, and compounds manage to interact reasonably coherently during our lives but seek to return to their dusty state when death occurs. Of the billions of our species who have existed on earth over the millennia, most have quietly and inexorab...

PREFACE THE USE OF FISHES as experimental animals has contributed much to our knowledge in many phases of animal science. Nigrelli 1953 has reviewed some of the more outstanding of these contributions. The principal obstacle connected with the use of fishes as ex- perimental animals is the lack of information on the selection and maintenance of experimental fishes. This apparent need has prompted the author to attempt to bring together some of...