Of the more than 35,000 children of school age in Stockholm over three-fourths attend the thirty _folkskolor_. These are grouped in eight school systems, corresponding to the parishes or districts into which the city is divided, and at the head of every such system is placed a “first teacher.” The different grades in a single building are cut up into parallel sections, so that the average number of children under one teacher does not exceed 35. The great Kungsholms _folkskola_, intended to accommodate 3,500-4,000 children, and one of the largest school buildings in the world, is in many ways typical of them all, in spite of its greater size. It consists of two L-shaped portions, each four stories high with a basement, their long arms forming the opposite ends of a rectangular gravelled yard and separating this from the street, and their short arms turned toward each other on one side of the yard. At the center of this third side is an archway, flanked by one-story structures which contain offices and the janitor’s quarters. Next to these the loftier gymnastic halls complete the front by joining on to the ells. The area of the yard is not far from one and a half acres. The classrooms, ninety-four in number, occupy the entire street side of the building, and open into long corridors which look out upon the central yard and lead down into it. On every floor drinking fountains and stationary washbowls supplied with hot and cold water are distributed at frequent intervals along these passage-ways. Besides the recitation rooms there are eight larger halls for pasteboard, wood, and metal sloyd and the sewing classes; three rooms for the use of cooking schools; two gymnasia; two bathing outfits, which include dressing-rooms, a hot-air chamber, shower baths, and a pool seven by fourteen feet; steam disinfection apparatus, laundry and drying rooms; dining rooms, and counters where milk and bread are sold to the children; the living apartments of the First Teacher, and a room for the use of other teachers; offices, and janitor’s quarters. The old wing is heated by steam and the newer one by hot air. The total cost, exclusive of the site, was over $200,000.