Unconvincing evidence that Beale's Mathematician is Robert Hooke

@article{Whittaker2020UnconvincingET,
  title={Unconvincing evidence that Beale's Mathematician is Robert Hooke},
  author={Dr Christopher A Whittaker},
  journal={Journal of Microscopy},
  year={2020},
  volume={282},
  pages={189 - 190}
}
There are no authenticated portraits of the polymath Robert Hooke (1635-1703). However, based mainly upon his analysis of the armillary, diagram, and landscape in Mary Beale’s Portrait of a Mathematician (1680-81), Griffing (2020a) posited that the sitter is “likely” to be Hooke.1 The evidence that he presents is problematic. Griffing’s key argument is that the armillary is a prototype orrery, showing the elliptical orbits of the planets around the sun, which “provides a mechanical analogue of… 
1 Citations
Comments on Dr Whittaker's letter and the article
[Corrections added on 10 March 2021, after first online publication: The first sentence was modified to make reference to the Letter being responded to and the original paper on which the Letter

References

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The lost portrait of Robert Hooke?
TLDR
The ‘Portrait of a Mathematician’ attributed to Mary Beale in the 1680s is considered as a likely candidate for a portrait of Robert Hooke made during his lifetime, which contains a remarkable diagram and armillary sphere, establishing Hooke's contribution to the theory of gravity.
The School of Education
It seems fitting, in this closing number of the seventh year of this Journal, to record something of the present organization, scope, and aim of the school of which it is an organ. The School of
The mystery of the missing portrait of Robert Hooke, 17th century scientist extraordinaire
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Lowther in the County of Westmorland, the seat of the Rt. Hon. The Lord Viscount Lonsdale. In collaboration with LeonardKnyff
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Lowther in the County of Westmorland, the seat of the Rt. Hon. The Lord Viscount Lonsdale
  • In collaboration with Leonard Knyff. Coloured engraving
Portrait of a Mathematician by Mary Beale
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