1. A SYMBIOTIC RACEOn certain large planets, whose climates, owing to the proximity of a violent sun, were very much hotter than our tropics, we sometimes found an intelligent fish-like race. It was bewildering to us to discover that a submarine world could give rise to mentality of human rank, and to that drama of the spirit which we had now so often encountered.
The very shallow and sun-drenched oceans of these great planets provided an immense diversity of habitats and a great wealth of living things. Green vegetation, which could be classified as tropical, subtropical, temperate and arctic, basked on the bright ocean floors. There were submarine prairies and forests. In some regions the giant weeds stretched from the sea-bottom to the waves. In these jungles the blue and blinding ligh
