Kearns poured himself out a liberal measure.

“Ah! Splendid stuff!” he exclaimed as he lowered the drinking cup from his lips. “That puts new life into one. But, by George, you’re right! It is strong. I never before found it so strong as this.”

“It must be because we are drinking it upon empty stomachs,” suggested the Professor.

“Even so,” declared Kearns, “I can’t understand why it should seem to have such strength.”

They proceeded on their way and had gone but a short distance when they came to a huge sign-board, planted high up upon the barrier dividing the two roadways. This sign-board bore a number of lines, in great black letters. The two wayfarers stopped and eagerly scanned the inscription. It read:—

REGULATIONS OF THE HIGHWAY.

Phaeromobiles, Lakomoters and other Voiters must not exceed the speed allowed by Law.

At all CURVES, directors of voiters must slow down to HALF SPEED.

Descents must be made from the LEFT side only of voiters south-bound and from the RIGHT side only of voiters north-bound, and after descending, persons must traverse the roadway by the CROSS-BRIDGES ONLY.

All voiters must hoist the STOP SIGNAL before coming to a HALT.