Eighty seconds after the explosion, all that remained of the
"Albatross" plunged into the waves!





Chapter XXI

THE INSTITUTE AGAIN




Some weeks before, on the 13th of June, on the morning after the
sitting during which the Weldon Institute had been given over to such
stormy discussions, the excitement of all classes of the Philadelphia
population, black or white, had been much easier to imagine than to
describe.

>From a very early hour conversation was entirely occupied with the
unexpected and scandalous incident of the night before. A stranger
calling himself an engineer, and answering to the name of Robur, a
person of unknown origin, of anonymous nationality, had unexpectedly
presented himself in the club-room, insulted the balloonists, made
fun of the aeronauts, boasted of the marvels of machines heavier than
air, and raised a frightful tumult by the remarks with which he
greeted the menaces of his adversaries. After leaving the desk, amid
a volley of revolver shots, he had disappeared, and in spite of every
endeavor, no trace could be found of him.