AND ANECDOTES. 333 ophthalmic affection, in an Arabic translation of Hippocrates, is called Butelleese ; another translation of ancient date calls it Shehkeret: the name, however, by which it is known at the present day in Africa, is Butelleese: the Latins called it Lusciosus, which word denotes precisely the disease, viz. one who sees imperfectly in the morning and evening twilight, but whose vision is clear at broad day-light.

Lusciosus ad lucemam non videt Vesperi non 'videre quos lusciosos appellant. Plant. Mil. GL ii. 3.

This ophthalmia has been by some denominated hen-blindness, from the circumstance of hens' eyes being thus affected, when they are unable to see to pick up small grains in the dusk of the evening. 1 have frequently seen fowls thus affected soon after going to sea, from the coast of Africa, after which they decline and grow sick. A quantity of small gravel should be spread in their coops at sea, which prevents this disorder, and will sometimes cure it. At the commencement of this complaint, the circumstance that first engages the patient's attention is the dimness of his eye-sight at twilight : the nocturnal dimness of vision was such, in the instance before-mentioned, that the youth could scarcely see, even with a candle in his hand, which he described, as seen by him, as if it were misty, or as glimmering in a thick fog. There was no external disfiguration visible in the eyes, but they appeared as usual.