on surrounding objects; and in its most concentrated form the Martian cloud-jelly could bring to bear immense forces which could also be controlled for very delicate manipulation. Magnetic forces were also responsible for the mollusc-like motion of the cloud as a whole over the ground, and again for the transport of lifeless material and living units from region to region within the cloud.
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 and very tenuous cloudlets in ‘telepathic’ communication, and often in strict unity as a group-mind; second, a more concentrated and less vulnerable corporate cloud; and third, an extremely concentrated and formidable cloud-jelly.
Save for these very remarkable characteristics, there was no really fundamental difference between the distinctively Martian and the distinctively terrestrial forms of life. The chemical basis of the former was somewhat more complicated than that of the latter; and selenium played a part in it, to which nothing corresponded in terrestrial life. The Martian organism, moreover, was unique in that it fulfilled within itself the functions of both animal and vegetable. But, save for these peculiarities, the two types of life were biochemically much the same. Both needed material from the ground, both needed sunlight. Each lived in the chemical changes occurring in its own ‘flesh’. Each, of course, tended to maintain itself as an organic unity. There was a certain difference, indeed, in respect of reproduction; for the Martian subvital units retained the power of growth and subdivision. Thus the birth of a Martian cloud arose from the subdivision of myriads of units within the parent cloud, followed by their ejection as a new individual. And, as the units were highly specialized for different functions, representatives of many types had to pass into the new cloud.
In the earliest stages of evolution on Mars the units had become independent of each other as soon as they parted in reproduction. But later the hitherto useless and rudimentary power of emitting radiation was specialized, so that, after reproduction, free individuals came to maintain radiant contact with one another, and to behave with ever-increasing coordination. Still later, these organized groups themselves maintained radiant contact with groups of their offspring, thus constituting larger individuals with specialized members. With each advance in complexity the sphere of radiant influence increased; until, at the zenith of Martian evolution, the whole planet (save for the remaining animal and vegetable representatives of the other and unsuccessful kind of life) constituted sometimes a single biological and psychological individual. But this occurred as a rule only in respect of matters which concerned the species as a whole. At most times the Martian individual was a cloudlet, such as those which first astonished the Second Men. But in great public crises each cloudlet would suddenly wake up to find himself the mind of the whole race, sensing through many individuals, and interpreting his sensations in the light of the experience of the whole race.
The life which dominated Mars was thus something between an extremely well-disciplined army of specialized units, and a body possessed by one mind. Like an army, it could take any form without destroying its organic unity. Like an army it was sometimes a crowd of free-wandering units, yet at other times also it disposed itself in very special orders to fulfil special functions. Like an army it was composed of free, experiencing individuals who voluntarily submitted themselves to discipline. On the other hand, unlike an army, it woke occasionally into unified consciousness.
The same fluctuation between individuality and multiplicity which characterized the race as a whole, characterized also each of the cloudlets themselves. Each was sometimes an individual, sometimes a swarm of more primitive individuals. But while the race rather seldom rose to full individuality, the cloudlets declined from it only in very special circumstances. Each cloudlet was an organization of specialized groups formed of minor specialized groups, which in turn were composed of the fundamental specialized varieties of subvital units. Each free-roving group of free-roving units constituted a special organ, fulfilling some particular function in the whole. Thus some were specialized for attraction and repulsion, some for chemical operations, some for storing the sun’s energy, some for emitting radiation, some for absorbing and storing water, some for special sensitivities, such as awareness of mechanical pressure and vibration, or temperature changes, or light rays. Others again were specialized to fulfil the function of the brain of man; but in a peculiar manner. The whole volume of the cloudlet vibrated with innumerable ‘wireless’ messages in very many wave-lengths from the different ‘organs’. It was the function of the ‘brain’ units to receive, and correlate, and interpret these messages in the light of past experience, and to initiate responses in the wave-lengths appropriate to the organs concerned.
All these subvital units, save a few types that were too highly specialized, were capable of independent life as air-borne bacteria or viruses. And whenever they lost touch with the radiation of the whole system, they continued to live their own simple lives until they were once more controlled. All were free-floating units, but normally they were under the influence of the cloudlet’s system of electro-magnetic fields, and were directed hither and thither for their special functions. And under this influence some of them might be held rigidly in position in relation to one another. Such was the case of the organs of sight. In early stages of evolution, some of the units had specialized for carrying minute globules of water. Later, much larger droplets were carried, millions of units holding between them a still microscopic globule of life’s most precious fluid. Ultimately this function was turned to good account in vision. Aqueous lenses as large as the eye of an ox were supported by a scaffolding of units; while, at focal length from the lens, a rigid retina of units was held in position. Thus the Martian could produce eyes of every variety whenever he wanted them, and telescopes and microscopes too. This production and manipulation of visual organs was of course largely subconscious, like the focusing mechanism in man. But latterly the Martians had greatly increased their conscious control of physiological processes; and it was this achievement which facilitated their remarkable optical triumphs.
One other physiological function we must note before considering the Martian psychology. The fully evolved, but as yet uncivilized, Martian had long ago ceased to depend for his chemicals on wind-borne volcanic dust. Instead, he rested at night on the ground, like a knee-high mist on terrestrial meadows, and projected specialized tubular groups of units into the soil, like rootlets. Part of the day also had to be occupied in this manner. Somewhat later this process was supplemented by devouring the declining plant-life of the planet. But the final civilized Martians had greatly improved their methods of exploiting the ground and the sunlight, both by mechanical means and by artificial specialization of their own organs. Even so, however, as their activities increased, these vegetable functions became an ever more serious problem for them. They practised agriculture; but only a very small area of the arid planet could be induced to bear. It was terrestrial water and terrestrial vegetation that finally determined them to make the great voyage.
3. THE MARTIAN MIND
The Martian mind was of a very different type from the terrestrial, different, yet at bottom identical. In so strange a body, the mind was inevitably equipped with alien cravings, and alien manners of apprehending its environment. And with so different a history, it was confused by prejudices very unlike those of man. Yet it was none the less mind, concerned in the last resort with the maintenance and advancement of life, and the exercise of vital capacities. Fundamentally the Martian was like all other living beings, in that he delighted in the free working of his body and his mind. Yet superficially, he was as unlike man in mind as in body.
The most distinctive feature of the Martian, compared