in gardening, are certain ornaments made with trees of different kinds; which are very common in all the French gardens, but are seldom introduced into the British ones, especially since the taste for clipped trees has been exploded. For those, however, who may still choose to have them, Mr Miller gives the following directions.
In order to make a gallery in a garden with porticoes and arches, a line must first be drawn of the length you design the gallery to be; which being done, it is to be planted with hornbeam, as the foundation of the gallery. The management of galleries is not difficult. They require only to be digged round about; and sheared a little when there is occasion. The chief curiosity required is in the ordering the forepart of the gallery, and in forming the arches. Each pillar of the porticoes or arches ought to be four feet distant from another, and the gallery 12 feet high and 10 feet wide, that there may be room for two or three persons to walk abreast. When the hornbeams are grown to the height of three feet, the distance of the pillars well regulated, and the ground-work of the gallery finished, the next thing to be done is to form the frontispiece; to perform which, you must stop the hornbeam between two pillars for that purpose, which forms the arch. As it grows, you must with your sheers cut off those boughs.