Master and Pupil

But to the great astonishment of Rosa, Van Baerle pushed back her white hand with the tips of his fingers.

The young man had been considering about the matter.

"Listen to me," he said. "I think we should risk too much by embarking our whole fortune in one ship. Only think, my dear Rosa, that the question is to carry out an enterprise which until now has been considered impossible, namely, that of making the great black tulip flower. Let us, therefore, take every possible precaution, so that in case of a failure we may not have anything to reproach ourselves with. I will now tell you the way I have traced out for us."

Rosa was all attention to what he would say, much more on account of the importance which the unfortunate tulip-fancier attached to it, than that she felt interested in the matter herself.

"I will explain to you, Rosa," he said. "I dare say you have in this fortress a small garden, or some courtyard, or, if not that, at least some terrace."

"We have a very fine garden," said Rosa, "it runs along the edge of the Waal, and is full of fine old trees."

"Could you bring me some soil from the garden, that I may judge?"

"I will do so to-morrow."

"Take some from a sunny spot, and some from a shady, so that I may judge of its properties in a dry and in a moist state."