Farm Crops. Potatoes, mangel, white clover and rhubarb, red clover, trefoil, rye-grass, wheat, oats, barley, common turnips, swedes.
Second list of Plants affected by Noxious Vapours, mixing the classes according to the effects produced on each.
I. Fern—only in the summer.
Scotch firs, spruce, and larches—a little in winter.
Clover (white and red), trefoil, rye-grass, poplars, hawthorn, potatoes—receive damage in winter to roots.
II. Wheat receives some damage in winter.
Oats in May, when in the grass state, soon receive damage.
Barley, mangel, common turnips, rhubarb.
III. Laurels (British and Portugal), aucubas, yews, holly, gorse—receive damage in winter, but more in summer.
Old grass meadows and pastures receive much damage in winter.