parent, colourless tissue. So little suffices to make us visible one to the other. For the most part the fibres of a living creature are no more opaque than water."
"Great Heavens!" cried Kemp. "Of course, of course! I was thinking only last night of the sea larvæ and all jelly-fish!"
"Now you have me! And all that I knew and had in mind a year after I left London—six years ago. But I kept it to myself. I had to do my work under frightful disadvantages. Oliver, my professor, was a scientific bounder, a journalist by instinct, a thief of ideas,—he was always prying! And you know the knavish system of the scientific world. I simply would not publish, and let him share my credit. I went on working, I got nearer and nearer making my formula into an experiment, a reality. I told no living soul, because I meant to flash my work upon the world with crushing effect,—to become famous at a blow. I took up the question of pigments to fill up certain gaps. And suddenly, not by design but by accident, I made a discovery in physiology."
"Yes?"
"You know the red colouring matter of blood; it can be made white—colourless—and remain with all the functions it has now!"
Kemp gave a cry of incredulous amazement.
The Invisible Man rose and began pacing the little study. "You may well exclaim. I remember that night. It was late at night,—in the daytime one was bothered with the gaping, silly students,—and I worked then sometimes till dawn. It came suddenly,
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