Chewing gum? Jeff was startled. Swiftly he strode across the dimly sunlit floor, got onto the forward step, peered into the cockpit.They wont be any good, with that burst tirehell have to set down in water anyhow, Dick explained. Sandy nodded.The result of recent enquiries into the state of civilisation under the Roman Empire during the first two centuries of its existence, has been to suggest conclusions in many respects at variance with those formerly entertained. Instead of the intellectual stagnation, the moral turpitude, and the religious indifference which were once supposed to have been the most marked characteristics of that period, modern scholars discern symptoms of active and fruitful thought, of purity and disinterestedness both in public and private life, but above all of a religious feeling which erred far more on the side of excess than on the side of defect. This change of view may be traced to various causes. A new class of investigators have made ancient history an object of special study. Fresh evidence has been brought to light, and a more discriminating as well as a more extended use has been made of the sources already available. And, perhaps, even greater importance is attributable to the principle now so generally accepted, that historical phenomena, like all other phenomena, are essentially continuous in their movement. The old theories assumed that the substitution of Christian for what is called Pagan196 civilisation was accompanied by a sudden break in mens habits and ideas. But the whole spirit of modern philosophy has prepared us to believe that such a break is not likely to have ever occurred. And a new survey of the period in question is leading us to the conviction that, as a matter of fact, it did not occur.Larry, more conversant with flying tactics, decided that Jeff meant to get to a higher level than they occupied, to outclimb the less flexible seaplane, so that he could swoop upon it with the advantage of elevation to help him overtake it.Professor John Sweet of Cornell University, in America, while delivering an address to the mechanical engineering classes, during the same year, made use of the following words: "It is [5] not what you 'know' that you will be paid for; it is what you can 'perform,' that must measure the value of what you learn here." These few words contain a truth which deserves to be earnestly considered by every student engineer or apprentice; as a maxim it will come forth and apply to nearly everything in subsequent practice.