"Common salt plays an important part in many of our chemical
reactions. By combining it with limestone, and treating this
with acid jelly, we also get good results on raising to the
boiling-point.

"However enjoyable the manly sport of yachting is on water, how
vastly more interesting and fascinating it is for a man to have a
yacht in which he can fly to Europe in one day, and with which
the exploration of tropical Africa or the regions about the poles
is mere child's play, while giving him so magnificent a
bird's-eye view! Many seemingly insoluble problems are solved by
the advent of these birds. Having as their halo the enforcement
of peace, they have in truth taken us a long step towards heaven,
and to the co-operation and higher civilization that followed we
shall owe much of the success of the great experiment on Mother
Earth now about to be tried.

"Another change that came in with a rush upon the discovery of a
battery with insignificant weight, compact form, and great
capacity, was the substitution of electricity for animal power
for the movement of all vehicles. This, of necessity brought in
good roads, the results obtainable on such being so much greater
than on bad ones that a universal demand for them arose. This
was in a sense cumulative, since the better the streets and roads
became, the greater the inducement to have an electric carriage.
The work of opening up the country far and near, by straightening
and improving existing roads, and laying out new ones that
combine the solidity of the Appian Way with the smoothness of
modern asphalt, was largely done by convicts, working under the