. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 342 PRESENT PROBLEMS IN EVOLUTION AND HEREDITY. lateral toes, and concentration of tlie major axis of body weight and strain npon the middle linger and toe. Man is also tending toward monodactylism in the foot hy the establishment of the major axis tlirongh tbe large toe and atrophy of the onter toes. The jiresent atro- l>hy of our small toe is as good a parallel as we can find of the changes which were occurring in the eocene period amo
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 342 PRESENT PROBLEMS IN EVOLUTION AND HEREDITY. lateral toes, and concentration of tlie major axis of body weight and strain npon the middle linger and toe. Man is also tending toward monodactylism in the foot hy the establishment of the major axis tlirongh tbe large toe and atrophy of the onter toes. The jiresent atro- l>hy of our small toe is as good a parallel as we can find of the changes which were occurring in the eocene period among the ancestors of the horse. The Teeth.—But hoAv about the teeth, in which there is an absolute loss of tissue in c<msequence of use? This is another objection raised by Ball, Poulton, and others, which disap])('avs npon examination. The dental tissues, while the hardest in the body, and, unlike bone, incapable of self-repair, are not only both living and sensitive, but, to A Kniliiis. j ScnpliOirt llLinia) Tilijj".' Troi>4 Mf^Cl"- 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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