[101] I have made a contribution to this last question in my Analysis of the Sensations, (1886), English translation, 1897.
[102] In my Grundlinien der Lehre von den Bewegungsempfindungen, 1875, the matter occupying lines 4 to 13 of page 20 from below, which rests on an error, is, as I have also elsewhere remarked, to be stricken out. For another experiment related to that of Foucault, compare my Mechanics, p. 303.
[103] Anzeiger der Wiener Akad., 30 December, 1875.
[104] The experiment was specially interesting for me as I had already attempted in 1874, although with very little confidence and without success, to excite electromagnetically my own labyrinth through which I had caused a current to pass.
[105] Perhaps the discussion concerning the peculiarity of cats always falling on their feet, which occupied the Parisian Academy, and, incidentally, Parisian society a few years ago, will be remembered here. I believe that the questions which arose are disposed of by the considerations advanced in my Bewegungsempfindungen (1875). I also partly gave, as early as 1866, the apparatus conceived by the Parisian scientists to illustrate the phenomena in question. One difficulty was left untouched in the Parisian debate. The otolith apparatus of the cat can render it no service in free descent. The cat, however, while at rest, doubtless knows its position in space and is instinctively conscious of the amount of movement which will put it on its feet.
[106] See the Appendix to the English edition of my Analysis of the Sensations, Chicago, 1897.
[107] Compare my Analysis of Sensations, p. 123 ff.
[108] E. H. Weber, De aure et auditu hominis et animalium, Lipsiae, 1820.
[109] Störensen, Journ. Anat. Phys., London, Vol. 29 (1895).
[110] A lecture delivered on Nov. 10, 1897.