"It worked," said Max to Len. "You're a plant geneticist and a tank culture expert. There's a job for you."

"Uh-uh!" Len backed away. "It sounds like a medical problem to me. Human cell control—right up your alley."

"It is a one-way street," Pat warned. "Once it is done, you won't be able to digest ship food. I'll get no good from this protein. I ate it just for the taste."

Hal Barton appeared quietly beside the table. "Three of the twelve test hamsters have died," he reported, and turned to Pat. "Your people carry the germs of melting sickness, as you call it. The dead hamsters were injected with blood taken from you before you were de-infected. We can't settle here unless we de-infect everybody on Minos. Would they object?"

"We wouldn't want to give you folks germs," Pat smiled. "Anything for safety. But there'll have to be a vote on it first."

The doctors went to Reno Ulrich's table and walked with him to the hangar, explaining. He was to carry the proposal to Alexandria, mingle with the people, be persuasive and wait for them to vote before returning. He was to give himself shots of cureall every two hours on the hour or run the risk of disease.

Reno was pleased. He had dabbled in sociology before retraining as a mechanic for the expedition. "This gives me a chance to study their mores." He winked wickedly. "I may not be back for several nights." They watched through the viewplate as he took off, and then went over to the laboratory for a look at the hamsters.

Three were alive and healthy, munching lettuce. One was the control; the other two had been given shots of Pat's blood from before he entered the ship, but with no additional treatment. Apparently a hamster could fight off melting sickness easily if left alone. Three were still feverish and ruffled, with a low red blood count, but recovering. The three dead ones had been given strong shots of adaptive and counter histamine, so their bodies had not fought back against the attack.

June glanced at the dead animals hastily and looked away again. They lay twisted with a strange semi-fluid limpness, as if ready to dissolve. The last hamster, which had been given the heaviest dose of adaptive, had apparently lost all its hair before death. It was hairless and pink, like a still-born baby.

"We can find no micro-organisms," George Barton said. "None at all. Nothing in the 

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