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Books Books 1 - 2 of 2 on Hazen has made some interesting experiments. It has been shown by Spallanzani, Morgan,....
" Hazen has made some interesting experiments. It has been shown by Spallanzani, Morgan, and Hescheler, that a short piece cut from the anterior end of an earthworm dies without regenerating the posterior end, although such a piece often lives for several... "
The American Monthly Microscopical Journal - Page 261
by Charles Wesley Smiley - 1900
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Anatomischer Anzeiger

Anatomy, Comparative - 1899
...Tall In an Earthworm. By ANNAH PDTNAM HAZEN. With 6 Figures. It has been shown by SPALLANZANI, MOROAN, and HESCHELER that a short piece cut from the anterior...piece often lives for several weeks or even months. It is not known, however, whether, if such pieces could be kept alive for a longer time, they would regenerate,...
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Science-gossip, Volumes 7-8

Natural history - 1900
...IN EARTHWORMS. — AP Hazen has made some interesting experiments. It has been shown by Spallanzaui, Morgan, and Hescheler that a short piece cut from...whether, if such pieces could be kept alive for a longer time, they would regenerate ; or whether, if regeneration did occur, a head or a tail would...
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