If, now and then, during their travels, they had fallen slightly out of step, harmony had been restored by their return to the conditions she was used to.
In an unclouded harmony of tastes and interests they cultivated ferns in Wardian cases, made macrame lace and wool embroidery on linen, collected American revolutionary glazed ware, subscribed to "Good Words," and read Ouida’s novels for the sake of the Italian atmosphere.
Those were of the purest 1830, with a grim harmony of cabbage-rose-garlanded carpets, rosewood consoles, round-arched fire-places with black marble mantels, and immense glazed book-cases of mahogany; whereas old Mrs. Mingott, who had built her house later, had bodily cast out the massive furniture of her prime, and mingled with the Mingott heirlooms the frivolous upholstery of the Second Empire.
As she stood there, in her long sealskin coat, her hands thrust in a small round muff, her veil drawn down like a transparent mask to the tip of her nose, and the bunch of violets he had brought her stirring with her quickly-taken breath, it seemed incredible that this pure harmony of line and colour should ever suffer the stupid law of change.
And she had died thinking the world a good place, full of loving and harmonious households like her own, and resigned to leave it because she was convinced that, whatever happened, Newland would continue to inculcate in Dallas the same principles and prejudices which had shaped his parents’ lives, and that Dallas in turn (when Newland followed her) would transmit the sacred trust to little Bill.
There are no more uses of "harmonious" in the book.