In Jammer's book Concepts of Simultaneity on page 108, there is a reference to two of Poincaré's papers:

  • "...his 1904 lecture on St. Louis..."

  • "...his contribution to the Lorentz Festschrift."

Unfortunately there is no bibliography in the book, and an internet search does not reveal anything. How can I find a pdf of these papers?

PS: I am not sure if such bibliography type of questions are welcome here. But given the importance of the persons involved and the historical importance of the topic, I guess it can be tolerated.


Poincare's lecture given during the 1904 World's Fair was published in 1906.

The Lorentz Festschrifft talk is discussed in this paper, which has a footnote to the original published version, and a translation:

Poincaré, Henri, "La théorie de Lorentz et le principe de réaction", Archives néerlandaises des sciences exactes et naturelles. Recueil de travaux offerts par les auteurs à H. A. Lorentz (The Hague: Nijhoff) Ser II, 1900, 5, pp. 252-278. See my discussion of Poincaré and his work on the violation of the principle of reaction in Lorentz's electron theory: Granek, Galina, "Poincaré’s Contributions to Relativistic Dynamics", Studies in History and Philosophy of Modern Physics 31, 2000, pp. 15- 48.

When looking for items like this include more terms: e.g., "Poincare Lorentz Festschrifft". The paper that is linked above show up first in the list.

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  • $\begingroup$ The links are already included ... mouse over the answer! $\endgroup$ – Peter Diehr Mar 22 '16 at 18:30

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