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The Biological Problems of Today

Science
New Series, Vol. 7, No. 162 (Feb. 4, 1898), pp. 145-161
Stable URL: http://www.jstor.org/stable/1623609
Page Count: 17
Subjects: Biological Sciences General Science
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Notes and References

This item contains 12 references.

[Footnotes]
  • *
    Discussion before the annual meeting of the Amer- ican Society of Naturalists held at Ithaca, N. Y., De- cember 28, 1897.
  • *
    Records of the Association of American Anatomists, sixth meeting, p. 32
  • *
    The Dipnoan Brain, American Naturalist, June, 1887, p. 546.
  • *
    Ikeno, S. Vorlaiifige Mittheilungen uber die Spermatozoiden bei Cycas revoluta. Bot. Centralb. 69:1-3. Ja.1897.
  • Hirase, S. Untersuchungen fiber das Verhalten des Pollens von Gingko biloba. Bot. Centralb.69:33-35. Ja.1897.
  • Webber, H. J. Peculiar Structures occurring in the Pollen tube of Zamia. Bot. Gaz.23: 458. note. Je. 1897.
  • §
    Belajeff, W. Ueber den Nebenkern in Spermato- genen Zellen und die Spermatogenese bei den Farn- kriauten. Ber. Deutsch. Bot. Gesellsch.15: 337-339. 27 Jl.. 1897.
  • ǁ
    Belajeff, W. Ueber die Spermatogenese bei den Schachtelhalmen. Ber. Deutsch. Bot. Gesellsch.15:339- 342. 27 Jl.1897.
  • Webber, H. J. The Development of the Anther- ozoids of Zamia. Bot. Gaz.24:16-22. 31 Jl.1897.
  • **
    Webber, H. J. Notes on the Fecundation of Zamia and the Pollen tube apparatus of Gingko. Bot. Gaz.24:225-235. 30. 0.1897.
  • ††
    Bower, F. 0. Studies in the Morphology of Spore-producing members. The Marattiaceæ Lond. 1897.
  • ‡‡
    Engler, A. Nachtrag zu Teil I.-1V. Pflanzen- ham. 341. 1897.