588
E T I E N N E W O L F F
Spratt, N . T . (1957a). Analysis o f the organizer center in the early chick embryo. I I .
Studies o f the mechanics o f notochord elongation and somite formation. J. exp.
Zool. 134, 577.
Spratt, N . T . (1957b). Analysis o f the organizer center in the early chick embryo. I I I .
Regulative properties o f the chorda and somite centers. J. exp. Z
0
°l- 135, 319.
Spratt, N . T . (1958). Analysis o f the organizer center in the early chick embryo. I V .
Some differential enzyme activities o f node center cells. J. exp. Z
00
^ 138, 5 1 .
Spratt, N . T . and Haas, H . (1960a). Morphogenetic movements in the lower surface
of the unincubated and early chick blastoderm. J. exp. Z°ol- 144, 139.
Spratt, N . T . and Haas, H . (1960b). Importance o f morphogenetic movements in the
lower surface o f the young chick blastoderm. J. exp. Z
00
^ 144, 257.
Spratt, N . T . and Haas, H . (1960c). Integrative mechanisms in development o f the
early chick blastoderm. I. Regulative potentiality o f separated parts. J. exp.
Zool. 145, 97.
Spratt, N . T . and Haas, H . (1961). Integrative mechanisms in development of the early
chick blastoderm. I I . R o l e o f morphogenetic movements and regenerative growth
in synthetic and topographically disarranged blastoderms. J. exp. Z°°l- 147, 57.
Swift, C . (1914). Origin and early history o f the primordial germ cells in the chick.
Amer. J. Anat. 15, 483.
Takata, C . and Y a m a d a , T . (1960). Endodermal tissues developed from the isolated
newt ectoderm under the influence o f guinea-pig bone marrow. Embryologia 5, 8.
Tarkowski, A . K . (1959a). Experiments o n the development o f isolated blastomeres
of mouse eggs. Nature, Lond. 184, 1286.
Tarkowski, A . K . (1959b). Experimental studies o n regulation in the development o f
isolated blastomeres o f mouse eggs. Acta Theriologica 3, 191.
Tarkowski, A . K . (1961). M o u s e chimaeras developed from fused eggs. Nature, Lond.
190, 857.
Thibault, C . and Dauzier, L . (1961). Analyse des conditions d e la fecondation in vitro
de l'oeuf de la lapine. Ann. Biol. anim. Biochem. Biophys. 1, 277.
Tiedemann, H . (1959). Neue Ergebnisse zur Frage nach der chemischen Natur der
Induktionsstoffe beim Organisatoreffekt Spemanns. Naturwissenschaften 22, 613.
Tiedemann, H . and Tiedemann, H . (1956). Versuche zur chemischen Kennzeichnung v o n embryonalen Induktionsstoffen. Hoppe-Seyl. Z- 306, 7.
Toivonen, S. (1940). Uber die Leistungsspezifizitat der abnormen Induktoren im
Implantatversuch bei Triton. Ann. Acad. Sci. Fenn. 55, 1.
Toivonen, S. (1950). StofBiche Induktoren. Rev. Suisse Zool. 57, 41.
Toivonen, S. (1953a). K n o c h e n m a r k als mesodermaler Induktor i m Implantatversuch bei Triturus. Arch. Soc. Z°°l- Bot. fenn., Vanamo 7, 113.
Toivonen, S. (1953b). Bone-marrow o f the guinea-pig as a mesodermal inductor in
implantation experiments with embryos o f Triturus. J. Embryol. exp. Morph. 1, 97.
Toivonen, S. (1954). Uber die Induktion des Mesoderms mit abnormen Induktoren.
Ann. Acad. Sci. Fenn. 4, 10.
Toivonen, S. and Sax£n, L . (1955). Uber die Induktion des Neuralrohes bei Triturus
Keimen als simultane Leistung des Leber—und Knochenmarkgewebes v o m
Meerschweinchen. Ann. Acad. Sci. Fenn. 30, 1.
Vainio, T . (1957). A n experimental study o f the complementariness o f heterogenous
embryonic inductive agents. Ann. Acad. Sci. Fenn. 35, 1.
Waddington, C . H . (1932). Experiments o n the development o f chick and duck
embryos cultivated in vitro. Phil. Trans. 221, 179.
Waddington, G. H . (1933). Induction b y the endoderm in birds. Arch. EntwMech.
Org. 128, 502.
E T I E N N E W O L F F
Spratt, N . T . (1957a). Analysis o f the organizer center in the early chick embryo. I I .
Studies o f the mechanics o f notochord elongation and somite formation. J. exp.
Zool. 134, 577.
Spratt, N . T . (1957b). Analysis o f the organizer center in the early chick embryo. I I I .
Regulative properties o f the chorda and somite centers. J. exp. Z
0
°l- 135, 319.
Spratt, N . T . (1958). Analysis o f the organizer center in the early chick embryo. I V .
Some differential enzyme activities o f node center cells. J. exp. Z
00
^ 138, 5 1 .
Spratt, N . T . and Haas, H . (1960a). Morphogenetic movements in the lower surface
of the unincubated and early chick blastoderm. J. exp. Z°ol- 144, 139.
Spratt, N . T . and Haas, H . (1960b). Importance o f morphogenetic movements in the
lower surface o f the young chick blastoderm. J. exp. Z
00
^ 144, 257.
Spratt, N . T . and Haas, H . (1960c). Integrative mechanisms in development o f the
early chick blastoderm. I. Regulative potentiality o f separated parts. J. exp.
Zool. 145, 97.
Spratt, N . T . and Haas, H . (1961). Integrative mechanisms in development of the early
chick blastoderm. I I . R o l e o f morphogenetic movements and regenerative growth
in synthetic and topographically disarranged blastoderms. J. exp. Z°°l- 147, 57.
Swift, C . (1914). Origin and early history o f the primordial germ cells in the chick.
Amer. J. Anat. 15, 483.
Takata, C . and Y a m a d a , T . (1960). Endodermal tissues developed from the isolated
newt ectoderm under the influence o f guinea-pig bone marrow. Embryologia 5, 8.
Tarkowski, A . K . (1959a). Experiments o n the development o f isolated blastomeres
of mouse eggs. Nature, Lond. 184, 1286.
Tarkowski, A . K . (1959b). Experimental studies o n regulation in the development o f
isolated blastomeres o f mouse eggs. Acta Theriologica 3, 191.
Tarkowski, A . K . (1961). M o u s e chimaeras developed from fused eggs. Nature, Lond.
190, 857.
Thibault, C . and Dauzier, L . (1961). Analyse des conditions d e la fecondation in vitro
de l'oeuf de la lapine. Ann. Biol. anim. Biochem. Biophys. 1, 277.
Tiedemann, H . (1959). Neue Ergebnisse zur Frage nach der chemischen Natur der
Induktionsstoffe beim Organisatoreffekt Spemanns. Naturwissenschaften 22, 613.
Tiedemann, H . and Tiedemann, H . (1956). Versuche zur chemischen Kennzeichnung v o n embryonalen Induktionsstoffen. Hoppe-Seyl. Z- 306, 7.
Toivonen, S. (1940). Uber die Leistungsspezifizitat der abnormen Induktoren im
Implantatversuch bei Triton. Ann. Acad. Sci. Fenn. 55, 1.
Toivonen, S. (1950). StofBiche Induktoren. Rev. Suisse Zool. 57, 41.
Toivonen, S. (1953a). K n o c h e n m a r k als mesodermaler Induktor i m Implantatversuch bei Triturus. Arch. Soc. Z°°l- Bot. fenn., Vanamo 7, 113.
Toivonen, S. (1953b). Bone-marrow o f the guinea-pig as a mesodermal inductor in
implantation experiments with embryos o f Triturus. J. Embryol. exp. Morph. 1, 97.
Toivonen, S. (1954). Uber die Induktion des Mesoderms mit abnormen Induktoren.
Ann. Acad. Sci. Fenn. 4, 10.
Toivonen, S. and Sax£n, L . (1955). Uber die Induktion des Neuralrohes bei Triturus
Keimen als simultane Leistung des Leber—und Knochenmarkgewebes v o m
Meerschweinchen. Ann. Acad. Sci. Fenn. 30, 1.
Vainio, T . (1957). A n experimental study o f the complementariness o f heterogenous
embryonic inductive agents. Ann. Acad. Sci. Fenn. 35, 1.
Waddington, C . H . (1932). Experiments o n the development o f chick and duck
embryos cultivated in vitro. Phil. Trans. 221, 179.
Waddington, G. H . (1933). Induction b y the endoderm in birds. Arch. EntwMech.
Org. 128, 502.