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 su