While the new movement in the teaching of physics--the study of the physics of daily life--is the keynote of the recent text-books, yet the laboratory manuals still adhere to the old method, leaving the presentation of material from everyday life to the text-book alone. It is the authors' belief that the manual as well as the text-book should be based on practical physics. The method is to give, first, a fundamental experiment in which the principle under consideration is made clear to the student, then to follow this with an experiment or a number of experiments on the practical applications of that principle. The authors have divided the index of experiments into three groups as follows: The first, known as the General Course, comprises the entire list, all fundamental experiments (56 in number) being printed in bold-faced type, and forming by themselves a group sufficiently large to prepare students for any college. The instructor may then select from the rest of the list such as suit the needs of his school or equipment. The second group is known as the Technical Course. It consists of the fundamental experiments and in addition others specially designed for boys preparing for the technical trades or for engineering. The third group, known as Household Physics, is designed for girls. It includes almost all the fundamental experiments and in addition a great many of household application for the benefit of that great majority of girls who take physics, not for technical purposes, but from a desire to understand household problems.