The magnetic field of repulsion and attraction generated by a subvital unit was much more restricted than its field of ‘wireless’ communication. Similarly with organized systems of units. Thus each of the cloudlets which the Second Men saw in their sky was an independent motor unit; but also it was in a kind of ‘telepathic’ communication with all its fellows. Indeed in every public enterprise, such as the terrestrial campaigns, almost perfect unity of consciousness was maintained within the limits of a huge field of radiation. Yet only when the whole population concentrated itself into a small and relatively dense cloud-jelly, did it become a single magnetic motor unit. The Martians, it should be noted, had three possible forms, or formations, namely: first, an ‘open order’ of independent
