Dr. Pereira says the digestibility of Celery is increased by its maceration in vinegar. As taken at table, Celery possesses certain qualities which tend to soothe nervous irritability, and to relieve sick headaches. "This herb Celery [Sellery] is for its high and grateful taste," says John Evelyn, in his _Acetaria_, "ever placed in the middle of the grand sallet at our great men's tables, and our Praetor's feasts, as the grace of the whole board." It contains some sugar and a volatile odorous principle, which in the wild plant smells and tastes strongly and disagreeably. The characteristic odour and flavour of the cultivated plant are due to this essential oil, which has now become of modified strength and qualities; also when freshly cut it affords albumen, starch, mucilage, and mineral matter. Why Celery accompanies cheese at the end of dinner it is not easy to see. This is as much a puzzle as why sucking pig and prune sauce should be taken in combination,--of which delicacies James Bloomfield Rush, the Norwich murderer, desired that plenty should be served for his supper the night before he was hanged, on April 20th, 1849. CENTAURY. Of all the bitter appetising herbs which grow in our fields and hedgerows, and which serve as excellent simple tonics, the Centaury, particularly its white flowered variety, belonging to the Gentian order of [97] plants, is the most efficacious. It shares in an abundant measure the restorative antiseptic virtues of the Field Gentian and the Buckbean. There are four wild varieties of the Centaury, square stemmed, and each bearing flat tufts of flowers which are more or less rose coloured. The ancients named this bitter plant the Gall of the Earth, and it is now known as Christ's Ladder, or Felwort.