2-56-11. William Thomson to H. Poincaré

June 30, 189411endnote: 1 This letter was penned by a copyist.

34, Hans Place S.W.

Dear Mr. Poincaré,

I ought long ago to have thanked you for your kind letter of the 28th{}^{\text{th}} May. The promised second volume of your “Méthodes Nouvelles” came to Glasgow during my absence and has been forwarded to me here.22endnote: 2 Poincaré 1893.

I am very much pleased to have it and I find in it exactly what I wanted in regard to the equation

d2⁢ud⁢x2=Π⁢(x)⁢u.\frac{d^{2}u}{dx^{2}}=\Pi(x)u.

I have to thank you also for your beautiful volume “Les Oscillations Electriques” which I have also received here and which I find full of most interesting matter.33endnote: 3 Poincaré 1894.

Believe me, Yours very truly,

Kelvin

ALS 3p. Private collection, Paris 75017.

Time-stamp: " 3.05.2019 01:30"

Notes

  • 1 This letter was penned by a copyist.
  • 2 Poincaré 1893.
  • 3 Poincaré 1894.

References

  • H. Poincaré (1893) Les méthodes nouvelles de la mécanique céleste, Volume 2. Gauthier-Villars, Paris. External Links: Link Cited by: endnote 2.
  • H. Poincaré (1894) Les oscillations électriques. Carré et Naud, Paris. External Links: Link Cited by: endnote 3.