. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. on the projectile, and the acceleration would have given in its turn the measure of the forces developed by the gymnast at each instant. We can even push the anal3^sis of muscular action so far as to give, in the successive pictures to scale, the positions of the skeleton within. the subject, with the phases of extension and contraction of the prin- cipal muscles, whose insertions upon the skeleton are, of course, known. Fig. 42 contains su
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. on the projectile, and the acceleration would have given in its turn the measure of the forces developed by the gymnast at each instant. We can even push the anal3^sis of muscular action so far as to give, in the successive pictures to scale, the positions of the skeleton within. the subject, with the phases of extension and contraction of the prin- cipal muscles, whose insertions upon the skeleton are, of course, known. Fig. 42 contains such Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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