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[Carl Correns' experiments with Pisum, 1896-1899].

H J Rheinberger1

  • 1Max-Planck-Institut für Wissenschaftsgeschichte Wilhelmstrasse 44 10117 Berlin, Germany.

History and Philosophy of the Life Sciences
|August 8, 2001
PubMed
Summary
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Unpublished research notes from Carl Correns reveal the intricate process behind the rediscovery of Mendel's laws in classical genetics. His hybridisation experiments with Pisum sativum highlight the delays and evolving insights inherent in empirical scientific discovery.

Area of Science:

  • History of Science
  • Genetics
  • Plant Hybridization

Background:

  • The establishment of classical genetics and the 1900 rediscovery of Mendel's laws are key events in scientific history.
  • Scholarly debate continues regarding the precise circumstances surrounding this rediscovery.
  • Unpublished research records offer crucial insights into historical scientific processes.

Discussion:

  • This paper analyzes Carl Correns' unpublished research protocols from his Pisum sativum (pea plant) hybridisation experiments (1896-1899).
  • It reconstructs Correns' scientific journey, focusing on his pursuit of the 'xenia' question and his engagement with experimental data.
  • The study examines how Correns developed an epistemic framework, assigning relevance to observations over time.

Key Insights:

Related Experiment Videos

  • Microhistorical analysis of Correns' research notes reveals delays constitutive to empirical thinking.
  • The notes expose the material specificities and intricacies of hybridisation experiments.
  • Correns' records demonstrate the gradual development of experimental reasoning and inference-making.

    • Outlook:

    • Further microhistorical studies of primary scientific records can illuminate the empirical basis of scientific breakthroughs.
    • Understanding the historical development of experimental practices enhances our comprehension of scientific progress.
    • This research contributes to a more nuanced understanding of the 'rediscovery' of Mendel's laws and the nature of scientific discovery.