"You can do a lot if you will. Put on that headset again and get my plan, offering any suggestions your far abler brain may suggest." As the human scientist poured his plan of battle into the brain of the astronomer, Orlon's face cleared. "It is graven upon the Sphere that the Fenachrone shall pass," he said finally. "What you ask of us we can do. I have only a general knowledge of rays, as they are not in the province of the Orlon family; but the student Rovol, of the family Rovol of Rays, has all present knowledge of such phenomena. Tomorrow I will bring you together, and I have little doubt that he will be able, with the help of your metal of power, to solve your problem." "I don't quite understand what you said about a whole family studying one subject, and yet having only one student in it," said Dorothy, in perplexity. "A little explanation is perhaps necessary," replied Orlon. "First, you must know that every man of Norlamin is a student, and most of us are students of science. With us, 'labor' means mental effort, that is, study. We perform no physical or manual labor save for exercise, as all our mechanical work is done by forces. This state of things having endured for many thousands of years, it long ago became evident that specialization was necessary in order to avoid duplication of effort and to insure complete coverage of the field. Soon afterward, it was discovered that very little progress was being made in any branch, because so much was known that it took practically a lifetime to review that which had already been accomplished, even in a narrow and highly specialized field. Many points were studied for years before it was discovered that the identical work had been done before, and either forgotten or overlooked. To remedy this condition the mechanical educator had to be developed. Once it was perfected a new system was begun. One man was assigned to each small subdivision of scientific endeavor, to study it intensively. When he became old, each man chose a successor--usually a son--and transferred his own knowledge to the younger student. He also made a complete record of his own brain, in much the same way as you have recorded the brain of the Fenachrone upon your metallic tape. These records are all stored in a great central library, as permanent references. "All these things being true, now a young person may need only finish an elementary education--just enough to learn to think, which takes only about twenty-five or thirty years--and then he is ready to begin actual work. When that time comes, he receives in one day all the knowledge of his specialty which has been accumulated by his predecessors during many thousands of years of intensive study." "Whew!" Seaton whistled, "no wonder you folks know something! With that start, I believe I might know something myself! As an astronomer, you may be interested in this star-chart and stuff--or do you know all about that already?"