What Jules Morel has said of the more evident degenerates is equally true of the others. Education should be conducted along the lines which Froebel indicated when he pointed out that play is the child's work, and that a development of this work is the natural problem for education. Extension of the general training of the whole body, from the properly conducted kindergarten to the school, is the principle on which all education should be conducted. This is recognised by advanced educators, as previously it had been recognised by the physician confronted with the effects of school strain resulting from the opposite theory. Manual training is a principle long adopted by idiot schools, where training of certain muscles through both mental and physical methods precedes intellectual training alone. Manual training may, however, be the source of equal dangers with the excessive abuse of intellectual training which preceded it. In the education of the degenerate, as in the education of the other members of the race, the true source of success is to avoid "the falsehood of extremes." INDEX OF AUTHORS Agassiz, 43 Aitken, Sir W., 86 Alexander, Harriet C. B., 57, 151, 285, 320, 335 Amabile, 61, 109 Amadei, 20 Annandale, 263 Andronico, 319 Anstie, 83 Aquinas, St. Thomas, 6 Aristotle, 5, 6, 10, 11, 66 Attmyer, 12 Aubry, 77 Augustine, St., 6 Awl, 144 Ayres, Howard, 201 Bacon, Francis, 3 Bacon, Roger, 6 Bachhofen, 349 Baer, Von, 13, 70, 172 Bannister, H. M., 87 Bastian, 297 Bauer, S., 47 Beach, Fletcher, 25 Bemiss, S. M., 81, 86 Benedikt, 22 Berwig, Elise, 60 Billod, 143 Bischoff, 298 Bjornstrom, 20 Bock, 204 Boëthius, 4 Bourgeois, 86 Bremer, L., 117 Brigham, 8, 18, 21, 144 Broca, 18 Brown-Sequard, 48 Bruce, 204 Buchanan, 214 Buffon, 5, 67 Bullard, 115, 116 Bulwer, 122 Bureau, 109 Burnett, 45 Burton, 3 Byron, Lord, 78 Calkins, 109 Campagne, 18, 176 Camper, 12, 181, 183, 185, 187 Carpenter, G. T., 245 Carson, 61 Catlin, 173 Charrin, 65, 71, 72, 122 Chiarrurgi, 8 Christopher, W. S., 145, 150, 156 Clapham, Crochley, 176 Clark, C. K., 142 Clouston, 25, 336 Cohen, M. A., 47, 48 Cohn, 287 Conger, 88, 89 Coolidge, F. S., 71, 122, 268 Cope, E. D., 52, 179 Cowles, 21 Cullen, 287 Cunningham, 31 Dally, 12 Dana, C. L., 24, 197, 337 Dareste, 67, 70, 203, 268, 301 Darier, 90 Davis, Barnard, 174 Davis, Chas., 81 Darwin, Chas., 9, 131, 212, 213, 214 Darwin, Erasmus, 7, 12 Darwin, G. H., 82, 83 Defoe, 92 Demarquay, 200 Dent, 286 Des Champs, 332, 334 Despine, 18 Dewees, W. P., 125 Dickens, Chas., 289 Dixon, 102 Dohrn, 5, 15, 32 Donders, 359 Down, Langdon, 25, 82, 91, 105, 199, 331 Double, Le, 64 Doutrebente, 75 Dryden, 10 Duncan, J. M., 91 Du Puy, 50, 51, 52, 71 Dumas, Alexander, 322