"I am lost with admiration of these photographs of Mr. Muybridge."--PROFESSOR MAREY, in _La Nature, Paris._ [Illustration: 47. COLUMBIAN EXPOSITION SPEEDWAY.] "Interesting and instructive to all."--_New York Herald._ "Highly interesting and valuable for every lover of horses."--_Illustrirte Zeitung, Berlin._ "We cannot more fittingly conclude our review than by repeating our recommendation of the work to all artistic and scientific bodies."--_The Nation, New York._ "So perfect was the synthesis that a dog in the lecture room barked and endeavored to chase the phantom horses as they galloped across the screen."--_Berkeley Weekly News._ [Illustration: 48. VILLAGE BLACKSMITHS.] "Noted artists, such as Menzel, Knaus, Begas; eminent scientists, such as von Helmholtz, Siemens and Förster and even the imperturbable field-marshal, Count von Moltke, were enthusiastic in their applause."--_Illustrirte Zeitung._ "A very large number could not obtain admission, so great was the desire to hear the lecture.... A wonderful surprise even to the careful observer of Nature."--_Die Press_, Vienna. "The lecture was received with stormy applause."--_Berliner Post_, Berlin. "The lecture was given in a popular manner, with scientific accuracy and artistic taste.... The room was filled to the last corner; nearly all the Royal Family and the Ministers were present."--_Münchener Neueste Nachrichten_, Munich. [Illustration: 49. A FAN FLIRTATION.] "After attending Mr. Muybridge's demonstrations, we felt no surprise at his having been received so enthusiastically in Paris."--_Berliner Tageblatt_, Berlin. "The lectures of Mr. Muybridge are unquestionably the most intensely interesting we ever listened to. No one in Berlin should fail to attend them."--_Norddeutsch Allgem Zeitung_, Berlin. "Some lectures are too technical for the general public. Here is one in which everybody is interested. The Lecture Theatre was crammed to repletion; we thought a few vacant places might have been reserved for those whose pleasant duty it is to record the brilliant success of Mr. Muybridge."--_Pall Mall Budget_, London. [Illustration: 50. ATHLETE, RUNNING LONG JUMP.] "So great an interest did the demonstrations excite that Mr. Muybridge was unanimously requested to repeat them. Two days afterward this distinguished company, including the venerable Field-Marshal (Count von Moltke) himself, attended a repetition of the lecture."--_Illustrirte Zeitung._ * * * * * _APPENDIX B._ ANIMAL LOCOMOTION. DESCRIPTION OF THE PLATES. The results of the investigation executed for the University of Pennsylvania are SEVEN HUNDRED AND EIGHTY-ONE SHEETS OF ILLUSTRATIONS,