She can go and buy the jet, and stop for it on the way back.

Will you tell her that she may go ?" Elettra had entered the room, and Veronica explained to her what she was to do.
"Put on your hat, Elettra," said Matilde, "and then please come to my room, and I will give you the recipe.

I must find it among my things.

I will be back presently, dear," she said to Veronica.
She went out, followed by the maid, who did as she was bidden and then went to Matilde's room.

The countess explained exactly what sort of jet she wanted, and then gave her the recipe.
"Tell the chemist that this is only for two doses," she said, "but that I wish him to make up twenty doses, because I am going to take it regularly.