1 of 5
On February 18, who holds a demonstration so that other doctors can examine Johnny?

2 of 5
In what institution's science room does Johnny write up fifty-four chemistry experiments?

3 of 5
What does Johnny present Gunther with a list of, which is reproduced in the book?

4 of 5
On what date does Mount extract "two handfuls" of matter from Johnny's tumor at the Neurological Hospital?

5 of 5
Why is Johnny upset about being put under general anesthesia for his surgery at the Neurological Hospital?