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The effect of ultra-violet light upon the developing eggs of ascaris megalocephala
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 June 1909
Summary1)When the development of one or more blastomeres of the eggs ofAscaris megalocephala in 2- or 4-cell stages, is prevented by exposure to the rays of ultra-violet light for 6 to 8 hours, the…
Notes on regeneration in planaria lugubris
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 December 1901
A histological study of regeneration in planaria simplicissima, planaria maculata and planaria morgani
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 August 1907
Notes on regeneration in stentor coeruleus
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 21 May 1903
TLDR
Notes on regeneration in Planaria simplicissima and Planaria morgani
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 June 1909
TLDR
An unpaired heterochromosome in the aphids
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 2005
Regeneration in Antennularia ramosa
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 November 1902
TLDR
Experimental studies on eggs of Echinus microtuberculatus
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 November 1902
Conclusions1)A part of an Echinus egg, containing a centrosome and a small number of chromosomes (4–12), may go as far as the fifth or sixth division after the operation, without returning to the…
Regeneration in tubularia mesembryanthemum
- N. Stevens
- BiologyArchiv für Entwicklungsmechanik der Organismen
- 1 December 1901
Conclusions1)There is no quantitative relation between the number of red pigment granules in the circulating fluid of regenerating pieces of Tubularia, and the amount of red pigment in the new…
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