_Associations for youth, devised or guided by adults._ Here we enter a very different realm. Forbush[30] undertakes an analysis of many such clubs which he divides according to their purpose into nine chief classes: physical training, handicraft, literary, social, civic and patriotic, science-study, hero-love, ethical, religious. These he classifies as to age of the boys, his purview generally ending at seventeen; discusses and tabulates the most favorable number, the instincts chiefly utilized, the kinds of education gained in each and its percentage of interest, and the qualities developed. He commends Riis's mode of pulling the safety-valve of a rather dangerous boy-gang by becoming an adult honorary member, and interpreting the impulsions of this age in the direction of adventure instead of in that of mischief. He reminds us that nearly one-third of the inhabitants of America are adolescents, that 3,000,000 are boys between twelve and sixteen, "that the do-called heathen people are, whatever their age, all in the adolescent stage of life." A few American societies of this class we may briefly characterize as follows: (a) Typical of a large class of local juvenile clubs is the "Captains of Ten," originally for boys of from eight to fourteen, and with a later graduate squad of those over fifteen. The "Ten" are the fingers; and whittling, scrap-book making, mat-weaving, etc., are taught. The motto is, "The hand of the diligent shall bear rule"; its watchword is "Loyalty"; and the prime objects are "to promote a spirit of loyalty to Christ among the boys of the club," and to learn about and work for Christ's kingdom. The members wear a silver badge; have an annual photograph; elect their leaders; vote their money to missions (on which topic they hold meetings); act Bible stories in costume; hear stories and see scientific experiments; enact a Chinese school; write articles for the children's department of religious journals; develop comradeship, and "have a good time." (b) The Agassiz Association, founded in 1875 "to encourage personal work in natural science," now numbers some 25,000 members, with chapters distributed all over the country, and was said by the late Professor Hyatt to include "the largest number of persons ever bound together for the purpose of mutual help in the study of nature." It furnishes practical courses of study in the sciences; has local chapters in thousands of towns and cities in this and other countries; publishes a monthly organ, The Swiss Cross, to facilitate correspondence and exchange of specimens; has a small endowment, a badge, is incorporated, and is animated by a spirit akin to that of University Extension; and, although not exclusively for young people, is chiefly sustained by them.