By means of their skilful surgery they soon isolated under the microscope some specimens of the living organisms that produced the disease; they experimented with all the elements and their combinations and saw what encouraged them, what attenuated them, and what killed them. It was not long before every trace of the microscopic creature had vanished from the island; there remained only the knowledge and the antidote that would enable their outposts or messengers through the sky to resist its attacks, should they ever encounter it again. Limanorans who were sent on missions out of the country had to be made epidemic-proof by inoculation against known diseases before setting out. But it sometimes happened, especially to scouts into the higher regions on the outskirts of the earth’s atmosphere, that they brought back with them symptoms that were new, and a new disease and a new microbe had to be added to their medical lists. It was explained to me that our solar system was travelling every moment of its existence into new regions of space; and as it moved it passed from time to time through swarms of minute and attenuated life which had been left myriads of ages before in its tracks by some diseased member of another system. This microscopic life was in its own special way immortal, and could subsist on the scattered material life that floated though the ether unclaimed by any planetary centre. It was out of such waifs of life peopling space that a new world made a new beginning in vital history; as soon as it cooled down sufficiently, after creative collision and separation, to allow of individual existence upon it, myriads of these microscopic inhabitants of space took possession of it, and began again the struggle of life which was the universal law of infinity, and meant the ascension of all energy through higher and higher circles.