Where weeds of this nature occur, there is too often thought to be more labour than profit in their extirpation. And although this is an argument of some propriety, where a farmer is tenant at will, or where his strength is not proportionate to the land: yet if land is worth any thing at all, that, whatever it may be, is lost, if it is suffered thus to become barren. And as prevention is in most cases considered preferable to cure, more care ought to be taken than generally is, of all our hedges and waste pieces of land by road sides, &c. Many of these plants are found growing in such places, and their seeds are of that nature that they are calculated to fly to considerable distances,—a contrivance in nature to fertilize the ground in her own way; but which, as agriculturists, it is the business of men to check.

706. Bindweed, small - - Convolvulus arvensis. 707. Bindweed, large - - —————- sepium. 708. Bistort - - - Polygonum bistorta. 709. Brakes - - - Pteris aquilina. 710. Clown's Woundwort - - Stachys palustris. 711. Cammock - - - Ononis arvensis. 712. Coltsfoot - - - Tussilago Farfara. 713. Crowfoot, creeping - - Ranunculus repens. 714. Goutweed - - - Aegopodium Podagraria. 715. Grass, Garden Couch - Triticum repens. 716. ——-, Couchy-bent - Agrostis stolonifera. 717. ——-, Couch Oat, or Knot Avena elatior. 718. ——-, Creeping-soft - Holcus mollis. 719. Horsetail, Corn - - Equisetum arvense. 720. Persicaria, willow-leaved Polygonum amphibium. 721. Rest Harrow - - - Ononis spinosa. 722. Sow-Thistle, Corn - - Sonchus arvensis. 723. Spatling Poppy - - Cucubalus Behen. 724. Stinging-Nettle, large - Urtica dioica. 725. Silverweed - - - Potentilla anserina. 726. Sneezewort - - - Achillea Ptarmica. 727. Thistle, melancholy - Carduus heterophyllus. 728. ———-, cursed - - ———- arvensis. 729. Water Horehound - - Lycopus europaeus.

* * * * *

Perennial Weeds.

This enumeration of noxious plants contains principally those which, although they are very troublesome, are more easy of extirpation than the last: for although the most of them are perennial, yet, as their roots do not spread as those of the above list do, they are to be effectually removed by taking up the plants by their roots. It should, however, be always noticed, that it is to little account to endeavour to clear any land of such incumbrances, if any waste places which are separated only by a hedge are allowed to grow these things with impunity; for the seeds will invariably find their way. The contrivance of nature in their formation is a curious and pleasant subject for the philosophical botanist; at the same time it is one of those curses which was impelled on human labour.

730. Butter-bur - - - Tussilago Petasites. 731. Burdock - - - Arctium Lappa. 732. Bugloss, small - - Lycopis arvensis. 733. Crowfoot, round-rooted - Ranunculus bulbosus. 734. ————, tall - - Ranunculus acris. 735. Dock, curdled - - - Rumex crispus. 736. ——, broad-leaved - - ——- obtusifolius. 737. ——, sharp-pointed - ——- acutus. 738. Fleabane, common - - Inula dysenteria. 739. Garlick, crow - - - Allium vineale. 740. ———-, bear - - - ——— ursinum. 741. Grass, turfy hair - - Aira caespitosa. 742. ——-, meadow soft - - Holcus lanatus. 743. ——-, carnation - - Carex caespitosa. 744. Knapweed, common - - Centaurea nigra. 745. ————, great - - ————- Scabiosa. 746. Mugwort - - - Artemisa vulgaris. 747. Meadow-sweet - - - Spiraea ulmaria. 748 Ox-eye Daisy Chrysanthemum Leucanthe-mum 749. Plantain, great - - Plantago major. 750. Ragwort, common - - Senecio Jacobaea. 751. ———-, marsh - - ———- aquaticus. 752. Rush, common - - - Juncus conglomeratus. 753. ——, blueish - - - ——— glaucus. 754. ——, flat-jointed - - ——— squarrosus. 755. ——, round-jointed - ——— articulatus. 756. ——, bulbous - - - ——— bulbosus. 757. Scabious, common - - Scabiosa avensis. 758. Thistle, milk - - - Carduus marianus. 759. ———-, meadow - - ———- pratensis.

* * * * *

SECTION XVI.-EXOTIC TREES AND SHRUBS.

The fashionable rage for planting ornamental trees and shrubs having so much prevailed of late years, that we meet with them by the road sides, &c. almost as common as we do those of our native soil, I have therefore enumerated them in this section.

Our limits will not admit of giving any particular descriptions of each; but as persons are often at a loss to know what soil each tree is known to thrive in best, we have endeavoured to supply that information; which will be understood by applying to the following