James Forbes, Journal of a Horticultural Tour through Germany…
“ On my return from these nurseries I proceeded to the nursery establishment of M. Cels, which contains a fine collection of stove and greenhouse plants, as well as many rare and hardy species; in short the collection here is more choice than extensive, and the plants were very well grown. There are several hothouses and low pits well stocked with good plants, and a range of new houses then building. This nursery is considered to contain the best collection of plants about Paris; the extent of ground is but limited, and not very well kept. ”
