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FURTHER EXPERIMENTS ON ADVENTITIOUS REPRODUCTION AND POLARITY IN HARENACTIS
Vol 20, Page 1
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ON THE INTERCHANGE OF THE LIMBS OF THE CHICK BY TRANSPLANTATION
Vol 20, Page 14
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SOME RESULTS OF CASTRATION IN DUCKS
Vol 20, Page 35
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A STUDY OF PEDAL LACERATION IN ACTINIANS
Vol 20, Page 81
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EXPERIMENTS WITH CHRYSOMELID BEETLES: III. THE EFFECTS OF KILLING PARTS OF THE EGGS OF Leptinotarsa decemlineata
Vol 20, Page 237
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Further experiments on the methods of egg-laying in Amphitrite
Vol 20, Page 252
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NEMATOCYSTS OF MICROSTOMA
Vol 20, Page 266
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THE BIOLOGY OF THE RED-BACKED SALAMANDER (PLETHODON CINEREUS ERYTHRONOTUS GREEN)
Vol 20, Page 332
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ON THE DISTRIBUTION AND MODE OF OCCURRENCE IN THE UNITED STATES AND CANADA OF CLINOSTOMUM MARGINATUM, A TREMATODE PARASITIC IN FISH, FROGS AND BIRDS
Vol 20, Page 350