or the multi-volume Liliacées, and works by other masters of the period, including Georg Dionysius Ehret’s Plantae et papiliones rariores, 1748-1759. In addition to printed books, there is a collection of manuscripts and drawings covering the same range of topics – a late 17th-century planting plan for an Italian garden; Hans Puechfeldner’s fine images of late 17th-century mannerist gardens; a number of paintings by oriental artists executed for western patrons to record discoveries of new plants made during the expansion of Europe into the East. The Library owns the original watercolors for Buchoz’s Collection des Fleurs dans les Jardins de la Chine as well as the gouaches by Clara Maria Pope for Samuel Curtis’s Beauties of Flora. Watercolors by Redouté, among other artists, a diminutive late 16th-century manuscript of flower illuminations attributed to Jacques le Moyne, and an early Italian manuscript herbal are just some of the library’s treasures. The collection continues to be developed. Noteworthy acquisitions from recent years are Francesco Colonna’s La Hypnerotomachia di Poliphilo, 1545 edition; Salomon de Caus’s La pratique et demonstration des horloges solaire, published in Paris in 1624; and Humphry Repton’s album of 500 engraved views taken from William Peacock’s Polite Repository, arranged by year. The garden rare book collection is both a unique tool for historical inquiry and a testimony to the enduring human delight in gardens and garden creation, which is, as Sir Francis Bacon wrote, “the Purest of Humane pleasures.” It was a claim echoed by Mrs. Bliss, whose testimony to the value of gardens and scholarship is inscribed upon the exterior walls of her library. Image Collections and Fieldwork Archives The Image Collections and Fieldwork Archives hold more than 500,000 images in a variety of formats, the majority of which are of Byzantine subject matter. Photographs and archival collections supporting pre-Columbian and garden and landscape studies are being developed. Garden In 1921, the Blisses hired landscape gardener Beatrix Farrand to design the garden at Dumbarton Oaks, and for almost thirty years Mildred Bliss collaborated closely with Farrand. Together they transformed the existing farmlands surrounding the house into terraced garden rooms and vistas, creating a garden landscape that progressed from formal and elegant stepped terraces, in the near vicinity of the house, to a more recreational and practical middle zone of pools, tennis court, orchards, vegetable beds, and cutting gardens, and concluding at the far reaches of the property with a