Van Baerle was known to be fond of everything that pleases the eye.

He studied Nature in all her aspects for the benefit of his paintings, which were as minutely finished as those of Gerard Dow, his master, and of Mieris, his friend.

Was it not possible, that, having to paint the interior of a tulip-grower's, he had collected in his new studio all the accessories of decoration?
Yet, although thus consoling himself with illusory suppositions, Boxtel was not able to resist the burning curiosity which was devouring him.
In the evening, therefore, he placed a ladder against the partition wall between their gardens, and, looking into that of his neighbour Van Baerle, he convinced himself that the soil of a large square bed, which had formerly been occupied by different plants, was removed, and the ground disposed in beds of loam mixed with river mud (a combination which is particularly favourable to the tulip), and the whole surrounded by a border of turf to keep the soil in its place.

Besides this, sufficient shade to temper the noonday heat; aspect south-southwest; water in abundant supply, and at hand; in short, every requirement to insure not only success but also progress.

There could not be a doubt that Van Baerle had become a tulip-grower.
Boxtel at once pictured to himself this learned man, with a capital of four hundred thousand and a yearly income of ten thousand guilders, devoting all his intellectual and financial resources to the cultivation of the tulip.