Speaking of the name of Cyclops reminds me that these scientific people have been playing a scurvy trick upon the classics behind our backs. It reminds one of Epistemon's visit to Hades, when he saw Alexander a patcher of clouts and Xerxes a crier of mustard. Aphrodite, the dabbler tells me, is a kind of dirty mud-worm, and much dissected by spectacled pretenders to the London B.Sc.; every candidate, says the syllabus, must be able to dissect, to the examiner's satisfaction, and demonstrate upon Aphrodite, Nereis, Palaemon. Were the gods ever so insulted? Then the snaky Medusa and Pandora, our mother, are jelly-fish; Astraea is still to be found on coral reefs, a poor thing, and much browsed upon by parrot fish; and Doris and Tethys and Cydippe are sea slugs. It's worse than Heine's vision of the gods grown old. They can't be content with the departed gods merely. Evadne is a water flea--they'll make something out of Mrs. Sarah Grand next; and Autolycus, my Autolycus! is a polymorphic worm, whatever subtlety of insult "polymorphic worm" may convey. However, I wander from the microscope. These shortbread things are fussing about hither and thither across the field, and now and then an amoeba comes crawling into view. These are invertebrate jelly-like things of no particular shape, and they keep on thrusting out a part here, and withdrawing a part there, and changing and advancing just as though they were popular democratic premiers. Then diatoms keep gliding athwart the circle. These diatoms are, to me at least, the most perplexing things in the universe. Imagine a highly ornamental thing in white and brown, the shape of a spectacle case, without any limbs or other visible means of progression, and without any wriggling of the body, or indeed any apparent effort at all, gliding along at a smart pace. That's your diatom. The dabbler really knows nothing of how they do it. He mumbles something about Buetschli and Grenfell. Imagine the thing on a larger scale, Cleopatra's Needle, for instance, travelling on its side up the Thames Embankment, and all unchaperoned, at the rate of four or five miles an hour.