Note 3 — Chapter II
Reading edition
Published in the Revue scientifique, June 8, 1901, and in English in The Independent, October 23-30, 1913, and in book form, 1914.
Reading edition
Published in the Revue scientifique, June 8, 1901, and in English in The Independent, October 23-30, 1913, and in book form, 1914.