Solarian

"It will be proved that a Solarian, supposing him to have a stature equal to our own, would do as much work as seven of our cultivators; and yet the Solarians are the happiest of beings; their lot is the highest degree of happiness to which we can aspire until the epoch when there shall exist stars of a more exalted rank, that are not yet to be found in our young universe."

"The small ships of the Nigrians were beginning to take a terrific toll in the thin ranks of the Solarians. The coming of the Rocket Squad had been welcomed indeed!"

"He grinned at the profanity that came out of the communicator-speaker. Then—back at the irreverently nicknamed Galloping Cow which was the base ship of the Extra-Solarian Research Institute expedition to this star-cluster—McRae cut off."

"The Solarian one-man ships were even smaller than the Nigrian one-man ships, and some of these did a tremendous amount of damage."