It would be a valuable fact could we locate the exact spot where the potato disease first appeared. In England it certainly appeared first in its most southern point, the southern shores of the Isle of Wight, in 1845. But the fact that it first appeared here on the edge of its territory gives room for probability that the inducing cause for spore germination came "across the seas" somewhere. But there seems no record anywhere of such experience.

In view, however, of the interest which seems now to attach to this question, it may be well to place on record that another disease was apparent to the writer among potatoes in Alaska in 1883. It was not virulent, but may become so hereafter. The whole plant had a sickly, yellowish hue; but not enough to interfere seriously with its growth. When it existed on one plant, however, it would spread to another, so that in time there would be a circle enclosing perhaps a dozen hills all of the tint. The appearance was such as indicates root fungus to the eye of an experienced nurseryman.