On certain problems of vertebrate embryology / by John Beard.

  • Beard, John, 1858-1924.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: On certain problems of vertebrate embryology / by John Beard. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

    11/96 (page 7)
    Contents. page Preface Ill Introduction i I. The characters of the critical stage in the Elasmobranch fishes 6 II. On modifications in the characters of the critical stage in certain Ichthyopsida 11 III. As to the existence of a critical stage above the Ich- thyopsida 14 IV. Correspondence of the critical stage in Scyllium with the birth-period in Didelphys 21 V. An enquiry as to the existence of a critical stage in human development 23 VI. Probable general occurrence of the critical stage in Verte- brata and its characteristics 32 VII. On actual and probable changes in the nutrition of the Vertebrate embryo at the critical period 37 VIII. The practical importance of the critical stage m the em- bryology of man 45 IX. Yolk-sac, mammary glands, and placenta 50 X. On von Baer's laws of development, and on a new law of Vertebrate development 59 XI. Concluding remarks 62 XII. Tables of comparison of the critical stage in various Verte- brates y2