In Rappaccini's Daughter, once Giovanni discovers that he is also poisonous, he is very hard on Beatrice. What examples within the text indicate that...

Prior to
coming into contact with or seeing
Beatrice, Giovanni is warned by his own sense of danger while
surveying the
garden from his window. He sees Rappaccini taking strenuous precautions while

tending his garden, and senses that a "deadlier malice" is perhaps contained

therein. Later, Giovanni witnesses a lizard die seemingly as a result of coming into
physical
contact with Beatrice's skin, and later sees an insect meet the same
fate. In these instances,
Giovanni feels that his senses are deceiving
him.

The professor warns
Giovanni about Rappaccini early
on, saying "there are certain grave objections to his
professional
character." Some time later, the professor is more specific in his warnings,

saying "I tell thee, my poor Giovanni, that Rappaccini has a scientific interest in
thee.
Thou hast fallen into fearful hands! And the Signora Beatrice? What
part does she act in this
mystery?" This is a specific warning of the dangers
of Rappaccini's scientific
experimentation, and a vaguer warning about
Beatrice as well.