Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Introduction, Lack of organization among science teachers in secondary school, The place of physics in the highschool curriculum, What should constitute a year’s course in physics for pupils fourteen or fifteen years of age, Teaching observation, The ralation of laboratory, Syllabus of topics for laboratory work