Instruction in the elementary schools supported by Government is in two grades, though the dividing line is not always clearly drawn. In Amsterdam, for example, there are four different grades. In the lower schools the subjects taught are, besides reading, writing, and arithmetic, grammar and history, geography, natural history and botany, drawing, singing and free gymnastics, and the girls also learn needlework, but a large proportion of the pupils are satisfied with a more modest course, and know little more than the three R's. The children attending these schools are between six and twelve years of age, though in some rural districts few of them are less than eight years old, but according to the new law they must begin to attend when they are seven and go on until they are twelve or thirteen according to the standard attained. In the upper grade schools the same subjects are taught in a more advanced form, with the addition of universal history, French, German, and English. These languages, being optional, are taught more or less after regular school hours. All the teachers in these schools must hold teachers' or head-teachers' certificates, to gain which they have to pass an examination in all the subjects which they are to teach except languages, for each of which a separate certificate is required. Every commune must have a school, though hitherto no one has been obliged to attend it, and lately, owing to the new Education Act, the builders have been busy in many places enlarging the schools to meet the new requirements. If there are more than forty children two masters are now necessary, and for more than ninety there must be at least three. Ten weeks' holidays are allowed in the year, and these are to be given when the children are most wanted to help at home, in addition to which leave of absence may be granted in certain cases by the district inspectors. Holidays, therefore, vary according to the conditions of a town or village.