Blue has a decided fascination for the bloodsucking "March" flies. In the "blue" tub of the laundry hundreds are lured to suicide, while the other tubs alongside count no voluntary victims. Blue clothing attracts scores, whereas the effect of any other colour is normal upon the appreciative sense of the flies. I am not well assured whether an attack of the "humph"--"the humph which is black and blue"--is not also diagnosed by the contemplative insects and forthwith attended to. Certainly if one has the misfortune to have become associated for the time being with devils of cerulean hue, the company of the flies seems all the more persistent and provocative of vexation. Imagination reels before the consequences of a blue costume, "all's blue," and the thrice intensified attacks of the indolent but persevering blood-suckers. November 16, 1909. Found a flat hairy spider, about 1 in. in diameter of body, mottled pale brown and grey, brooding over a flat egg capsule almost of the same tints as itself. It was on the trunk of the jack fruit tree, and so closely resembles the egg-capsule produced by contiguous fungi as to be absolutely invisible unless the gaze happened to be concentrated on the spot. No doubt in my mind that the similitude of the spider, together with its egg-capsule, to the adjacent discs of fungi enabled it to escape detection. When disturbed the spider whisked into absolute invisibility. I inspected the trunk of the tree for several minutes before I found it, within six inches of its original resting-place, perfectly still, acting the part of an obscure vegetable. TARANTULAS AND TARANTISMUS A few months ago I read in a text-book a dogmatic assertion to the effect that the so-called tarantulas were perfectly innocent of venom, and formidable only to the insects on which they prey. The great, good-tempered fellow, as uncouth in its hairiness as Nebuchadnezzar during his lamentable but salutary attack of boanthropy, is regarded with a good deal of suspicion, if not dread, though it pays for its lodging by reason of its large appetite, which latter statement seems self-contradictory. To satisfy its pangs of hunger it captures numbers of small insects which, willy nilly, tenant our homes.