Proceedings of the Japan Academy

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Volume 25, Issue 7

Displaying 1-8 of 8 articles from this issue

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La Structure d'un Flot Topologique, I

Motokiti KONDO

1949 Volume 25 Issue 7 Pages 1-10
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.3792/pja/1195571906

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On the Theory of Conformal Transformations between two Rheonomic Spaces

Michiaki KAWAGUCHI

1949 Volume 25 Issue 7 Pages 11-18
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.3792/pja/1195571907

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Internal Structure of the Pterobranch Atubaria heterolopha Sato, with an Appendix on the Homology of the 'Notochord'

Taku KOMAI

1949 Volume 25 Issue 7 Pages 19-24
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.25.7_19

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Induction of Limbs in Triturus, with Special Reference to the Origin of Their Cells

Mamori ICHIKAWA, Hiroshi AMANO

1949 Volume 25 Issue 7 Pages 25-30
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.25.7_25

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1) The forelimb rudiment of the stage 30 embryo of Triturus pyrrhogaster was extirpated, and the nasal placode taken from another embryo in the same stage was grafted in the flank ventral to the eighth or the ninth somite.
2) A Supernumerary limb was thus induced in 17 out of 39 specimens in which no regeneration appeared in the normal site.
3) Of these 17 cases, f developed 4-digited perfect limbs, which were disharmonic to the body side.
4) The fact that in this experiment the new limb was formed of the cells in situ and not of the cells shifted from the normal rudiments, is substantiated by the results of two series of control experiments, one of simple regeneration and the other of simple induction experiment.

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Induction of Pseudopregnancy in Rats by Applying Various Substances to Nasal Mucosa

Kiyoshi TAKEWAKI, Yasuharu MIYAMOTO

1949 Volume 25 Issue 7 Pages 31-37
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.25.7_31

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Occurrence of Pseudopregnancy in Rats Placed in Vapor of Ammonia

Kiyoshi TAKEWAKI

1949 Volume 25 Issue 7 Pages 38-39
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.25.7_38

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New Dasycladaceae from the Jurassic Torinosu Limestone of the Sakawa Basin. II

Hisakatsu YABE, Siro TOYAMA

1949 Volume 25 Issue 7 Pages 40-44
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.2183/pjab1945.25.7_40

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Supplementary Remarks on Frobeniusean Algebras. I

Tadasi NAKAYAMA

1949 Volume 25 Issue 7 Pages 45-50
Published: 1949
Released on J-STAGE: September 12, 2006

DOIhttps://doi.org/10.3792/pja/1195571908

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