It was described again in 1883, at the level of chromosomes, by Van Beneden in Ascaris eggs.
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He returned to Frankfurt as personal physician to the banished Archduke Stephen of Austria at Schaumburg Castle from 1861 to 1863.
The Weismann barrier is the principle, proposed by August Weismann, that hereditary information moves only from genes to body cells, and never in reverse.
August Strindberg | August | Papal conclave, August 1978 | Stanisław August Poniatowski | August Derleth | Pernilla August | August Macke | Gottfried August Bürger | August Wilson | August von Mackensen | August Sander | August Heckscher | Georg August Schweinfurth | August Spies | August Neidhardt von Gneisenau | August Bournonville | August Belmont | Robert August | Oslo, August 31st | Karl August Varnhagen von Ense | Erdmann August of Brandenburg-Bayreuth | Carl August Tidemann | Bille August | August Weismann | August von Kotzebue | August Schleicher | August: Osage County | The Teahouse of the August Moon | Salomon August Andrée | Karl August von Hardenberg |
He reevaluates August Weismann's model of the cell compartmentalization of somatic and germline cell lineages (see Weismann barrier), and argues that the vision of the individual taken by the modern synthesis is insufficient to explain the early evolution of development or ontogeny.