diminution of these rabbits, whether this contraction is at a uniform rate or accelerated. Nor can I tell how long it is prolonged, for the quantity of drug administered, as only a fraction of the diminution has taken place when the animal passes beyond the range of any microscope I now possess.

"These questions were overshadowed, however, by a far more serious problem that encompassed them all.

"As I was planning to project myself into this unknown universe and to reach the exact size proportionate to it, I soon realized such a result could not be obtained were I in an unconscious state. Only by successive doses of the drug, or its retardent about which I will tell you later, could I hope to reach the proper size. Another necessity is that I place myself on the exact spot on that ring where I wish to enter and to climb down among its atoms when I have become sufficiently small to do so. Obviously, this would be impossible to one not possessing all his faculties and physical strength."

"And did you solve that problem, too?" asked the Banker.

"I'd like to see it done," he added, reading his answer in the other's confident smile.

The Chemist produced two small paper packages from his wallet. "These drugs are the result of my research," he said. "One of them causes contraction, and the other expansion, by an exact reversal of the process. Taken together, they produce no effect, and a lesser amount of one retards the action of the other." He opened the papers, showing two small vials. "I have made them as you see, in the form of tiny pills, each containing a minute quantity of the drug. It is by taking them successively in unequal amounts that I expect to reach the desired size."

"There's one point that you do not mention," said the Doctor. "Those vials and their contents will have to change size as you do. How are you going to manage that?"

"By experimentation I have found," answered the Chemist, "that any object held in close physical contact with the living body being contracted is contracted itself at an equal rate. I believe that my clothes will be affected also. These vials I will carry strapped under my armpits."

"Suppose you should die, or be killed, would the contraction cease?" asked the Doctor.

"Yes, almost immediately," replied the Chemist. "Apparently, though I am acting through the subconscious mind while its power 

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