Marion Cran, THE GARDEN OF IGNORANCE THE EXPERIENCE OF A WOMAN IN A GARDEN. First published 1924 by Herbert Jenkins Limited, 3 York Street, London S.W. 1931 edition.
p. 102-3
One great favourite is Robert Craig, and somehow or other I have never seen it in any other private garden but mine. It is an exceedingly vigorous climber with extraordinary foliage of reddish-brown in the new shoots, and glossy as if each leaf had been varnished or richly glazed. It blooms with a very pretty habit, so that one can cut long sprays for indoors; and so profuse is it that I can fill the parlour, and the tree looks none the poorer for the cutting. The buds are of fine copper yellow like William Allan Richardson; as the flowers open they turn creamier and sometimes end up snow white, so that the varying shades on one spray are exceedingly beautiful. The flower, not the leaf, has a very sweet scent like the strongest sweetbriar.