Even gentle Professor Gray hurls anathema at the CANADA THISTLE; "a vile pest" he calls it. As CURSED, CORN, HARD, and CREEPING THISTLE it is variously known here and in Europe, whence it came to overrun our land from Newfoundland to Virginia, westward to Nebraska. By horizontal rootstocks it creeps and forms patches almost impossible to eradicate. The small reddish-purple flower-heads, barely an inch across, usually contain about a hundred florets each. In their tubes the abundant nectar rises high, so that numerous insects, even with the shortest tongues, are able to enjoy it. Not only bees and butterflies, but wasps, flies, and beetles feast diligently. When a floret opens, a quantity of pollen emerges at the upper end of the anther cylinder, pressed up by the growing style. Owing to their slight stickiness and the sharp processes over their entire surface, the pollen grains, which readily cling to the hairs of insects, are transported to the two-branched, hairy stigma of an older floret. But even should insects not visit the flower (and in fine weather they swarm about it), it is marvelously adapted to fertilize itself. Farmers may well despair of exterminating a plant so perfectly equipped in every part; to win life's battles. "The colour of purple...was, amongst the ancients, typical of royalty. It was a kind of red richly shot with blue, and the dye producing it was attained from a shell found in considerable numbers off the coast of Tyre, and on the shore near the site of that ancient city, great heaps of such shells are still to be found. The production of the true royal purple dye was a very costly affair, and therefore it was often imitated with a mixture of cochineal and indigo..." - J. JAMES TISSOT. As many so-called purple flowers are more strictly magenta, the reader is referred to the next group if he has not found the flower for which he is in search here. Also to the "White and Greenish" section since many colored flowers show a tendency to revert to the white type from which, doubtless, all were evolved. He should remember that all flowers are more or less variable in shade, according to varying conditions. MAGENTA TO PINK FLOWERS "Botany is a sequel of murder and a chronicle of the dead." - JULIAN HAWTHORNE.