That both should be missing struck her with foreboding; and she charmed Mr. Rosedale by proposing that they should make their way to the conservatories at the farther end of the house.
She fancied he was the kind of man whose sentimental associations would be stirred by the conventional imagery of a wedding, and she pictured herself, in the seclusion of the Van Osburgh conservatories, playing skillfully upon sensibilities thus prepared for her touch.
The scene in the Brys’ conservatory had been like a part of her dreams; she had not expected to wake to such evidence of its reality.
Scarcely three months had elapsed since he had parted from her on the threshold of the Brys’ conservatory; but a subtle change had passed over the quality of her beauty.
If Lily recalled this early emotion it was not to compare it with that which now possessed her; the only point of comparison was the sense of lightness, of emancipation, which she remembered feeling, in the whirl of a waltz or the seclusion of a conservatory, during the brief course of her youthful romance.
The latter, however, was not discoverable in the conservatories, and Lily, oppressed by a sudden conviction of failure, was casting about for a way to rid herself of her now superfluous companion, when they came upon Mrs. Van Osburgh, flushed and exhausted, but beaming with the consciousness of duty performed.
It isn’t a bit hotter here than in Mrs. Van Osburgh’s conservatory—and some of the women are not a bit uglier."
There are no more uses of "conservatory" in the book.