There is no doubt but that in flying the higher faculties are called into play. No such elaborate preparation is necessary for learning to drive an automobile, but some instruction is usually found necessary when learning how to balance a bicycle for the first time and until confidence is secured, as is also the case in learning to swim. A good chauffeur does not necessarily make a good aviator even though he have exceptional ability as a driver of racing automobiles, although I think that an aviator might make a good driver of a racing automobile. This seems to indicate clearly to my mind that there is some additional quality required in flying. I know of one case where a successful automobile builder and driver killed himself on account of desperation over the fact that he could not master flying. Actors and men with a keen sense of feeling seem to do well in the air. They seem to get the "feel of the air," or to have the delicate sense of touch which is required to handle an aeroplane among the illusive vagaries of the atmosphere, and to be able to sense its rapid action and feel its ever-changing conditions almost before they take effect. One must be absolutely en rapport with his machine, as an expert horseman is part of his horse or his horse is part of him; such a rider stands out from all the rest, a beautiful sight to see and an expression of the poetry of motion; such also is the manner of the master at the piano, whose very soul is in tune and vibrating with every subtle and rich harmony of the instrument, feeling at the same time the ever-changing mood of his audience as he sways them or is swayed by them in turn, keeping in close sympathy with their thoughts as well as suggesting to their minds the trend that they shall take. AVIATING AND BALLOONING The sensations which an aviator has during great flights of both duration and altitude are somewhat comparable to those of the balloon pilot[9] who sails in the sky far above the earth, feeling a peculiar realisation of the immediate presence of the Supreme Being, overwhelmed with the magnitude of the universe, with a sense of being a part of it, untrammelled, unaffected by ordinary things, surrounded with extraordinary conditions, supersensitive and yet keenly realising, now, matters of vast importance; now, minutely weighing his life in his hands as if it were something far removed from himself; breathing an air full of vigour and inspiration, with a sense of exaltation pervading every cell of the body is it a wonder that men enjoy such delights and really live only when they can cast off mere existence and rise either to the contemplation of such experiences by reading and thinking about them or to a full realisation of these experiences by actually trying them out personally? Such moments, rapidly passing moments each going to make up our individual life are usually but too few.