In engineering and mining matters, the aeroplane may be of assistance in exploring the best places to locate the route for railroads through mountain passes and into such places as "Death Valley" where the salt deposits are located.

TRAVEL

An important field in the sporting world of aviation of course will be carrying passengers and initiating novices into the mysteries of the air lanes and into the pleasures of aerial touring.

In this delightful method of travel the panorama below is equal to any of the magnificent landscapes which may be seen from high mountains and besides, the view is attended by most delicious thrills and sensations, and when a good pilot is in control of the machine the passenger is sure of a pastime absolutely unequalled for mere joy, aside from further use or benefit it may have.

While travelling over torrid places like deserts and arid wastes, as well as burning prairies, the aviator can fly high where the air is cool and clear and escape the great humidity and the deadly alkali dust.

As for mountain climbing, it will have lost its peculiar fascination when the aeroplane will be to mountains what the elevator is to high buildings. The landscape has a greater, far greater beauty; for an aviator can see a great distance over a level plane. At the height of one mile you can, theoretically, see ninety-six miles in every direction and as you ascend the distance to the horizon becomes greater. In hilly country, one hill hides another when you look from the ground, but when you are high up in the sky, like the eagle, the mountains all seem to lose their height and appear flat and naturally your view is unobstructed.

At great altitudes the sky becomes very deep blue and if you kept going up you would reach a point finally where the sky became black and the sun appeared like a ball of fire all by itself as a candle flame does in the dark.

FOR HEALTH

In these regions there is no dust in the air to diffuse the light and the air is dry and consequently excellent for persons with lung trouble. There is even a possibility that physicians will advise patients suffering from tuberculosis to ascend to these high altitudes, and it is a fact that Hubert Latham was threatened with this disease, yet enjoyed good health after taking up aviation, only to be killed by a wild buffalo, as related. Perhaps this is one of those cases I was looking for where the aeroplane has saved a life.

METEOROLOGY