The more generalized industrial schools are those of arts and crafts and the so-called practical schools for boys. Their organization presents marked differences. In some of the countries named there exist schools that receive pupils either as full or half time boarders, and offer night courses as the situation demands. In all these instruction is free. The Government generally offers a certain number of scholarships in the boarding schools for pupils approved by the different Departments or Provinces of the country. Tools, instruments, and supplies used in the schools are provided by the Government. In return the school exacts of such students certain services and thereby carries out certain work that represents a partial reimbursement for the amount spent upon their maintenance. This is the case with the schools of arts and crafts in Honduras and Panama. Some small schools of this class are maintained by means of the labor they carry on for private individuals and by the sale of the products they turn out. These industrial schools are generally of two kinds: (1) Those in which the training in commercial subjects and in arts and crafts constitutes part of the regular course of study and (2) those devoted exclusively to the teaching of arts and crafts. (1) In those of the first class the pupils study the ordinary subjects prescribed by the department of public instruction and devote only several hours weekly to arts and crafts. This class in its turn includes two groups of institutions. To be admitted to those of the first group the pupils must know how to read and write and apply the elementary rules of arithmetic. During the entire school year instruction is given in Spanish, geography, history, and arithmetic. The practical schools for girls and boys are generally of this kind, being especially numerous in Guatemala and Honduras. The schools conducted by the Christian Brothers in Nicaragua are also of this type. The duration of studies is from three to five years, a half day being devoted to the classes in the ordinary subjects of primary education and the other half to practical work. In the second group are comprised various institutions which require certificates from the higher elementary schools, such as the liceo and the higher colegio for women in Costa Rica, the National Institute in Salvador, the Central National Institute for Boys in Guatemala, and the normal schools in these countries and in Honduras.