In the preceding issue of Tellus were pub- lished the first results of our investigations of cosmic ray orbits in the field of a magnetic dipole. The investigations were carried out by measurements o n a model with particle mo- mentum range corresponding to 1010-∞eV/c. A detailed description of the apparatus and the performance of the experiment is given in part I of the present paper. DOI: 10.1111/j.2153-3490.1953.tb01056.x