BILHARZIOSIS. In various parts of Africa the inhabitants are liable to suffer from a form of endemic haematuria caused by the presence of a parasite in the mucous membrane of the urinary passages. This parasite was discovered in 1852 by Bilharz, and hence is generally known as Bilharzia, though it has been more scientifically named Schistosoma haematobium. The condition to which it gives rise is that of bilharziosis. (For description and life history of the parasite see [Trematodes].) In man the parasites and ova have been found in the minute veins of the bladder, ureter and pelvis of the kidney (more rarely in other organs), where they infest the mucous and submucous tissues. In an affected bladder the mucous membrane presents swollen vascular patches of varying size, or warty prominences on which the urinary salts may be deposited. The ova often serve as a nucleus for urinary calculi. Similar changes may take place in the ureter, and the consequent swelling lead to obstruction to the passage of urine, and if left untreated to pyelitis and pyonephrosis. If the rectum be affected the mucous membrane becomes thickened, polypoid growths form and large submucous haemorrhages may take place.
As to the mode of entrance of this parasite opinion is divided. Some authorities favour the view that the entrance is through the skin, urethra or rectum, the result of bathing in infected water; others that it is taken by the mouth in water or uncooked fish. The symptoms to which it gives rise are haematuria, pain in the perineal region and a greater or less degree of anaemia through loss of blood. If the disease continue, cystitis and its consequent train of symptoms ensue (see [Bladder and Prostate Diseases]). If the rectum be affected there is considerable discharge of mucus, and later prolapsus ani may be the result. But the symptoms vary to a remarkable extent, from the slightest producing but little discomfort, to the most severe resulting in death. The liquid extract of male fern is the only drug used with much success. The symptoms caused by the parasite must be treated as they arise. Polypoid growths of the rectum must be surgically treated.
BILIN (Czech Bilina), a town of Bohemia, Austria, 90 m. N. of Prague by rail. Pop. (1900) 7871, chiefly German. It is a very old town situated on the Biela, and contains a 17th-century castle, belonging to Prince Lobkowitz. In the vicinity of the towns are extensive lignite mines. Bilin is famous for its mineral springs, the Biliner Sauerbrunnen. They have a temperature of 45.6° F., and contain a large proportion of bicarbonate of soda. About 4,000,000 bottles of water are exported annually, and another article of export is the salt recovered from the water by evaporation. About 5 m. to the S. of the Sauerbrunnen lies the Boren or Biliner Stein (1763 ft.), a large mass of phonolite or clinkstone, with rare flora and fine view. The town is indeed surrounded by basaltic rocks, the largest of them being the Radelstein (2460 ft.), from which a fine view is obtained.
BILL. There are three words in English with distinct meanings and derivations. (1) A written, originally sealed, document. The word is derived from the Early English bille, Anglo-Latin billa, from Latin bulla, in the medieval sense of “seal.” It is a doublet, therefore, of “bull.” (2) A common Teutonic word for a long-handled cutting weapon (O. Eng. bil, billes, sword or falchion, O. Sax. bill, M.H.G. Bil, Mod. Ger. Bille, a pickaxe; no connexion with Ger. Beil, an axe), of which the name and shape is preserved in the hedging-bills used for pruning hedges and lopping the branches of trees. For an account of the weapon see (2) below. (3) The beak of a bird. This may be connected with (2), but it does not appear in any Teutonic language other than English.
(1) In the sense of a document the word is used in various connexions in law and commerce.
In the English parliament, and similar legislative bodies, a bill is a form of statute (q.v.) submitted to either house, which when finally passed becomes an act. The modern system of legislating by means of bill and statute appears to have been introduced in the reign of Henry VI., superseding the older mode of proceeding by petitions from the Commons, assented to by the king, and afterwards enrolled by the judges. A bill consists of a preamble, reciting the necessity for legislation, and clauses which contain the enactments. (For procedure see [Parliament].)
A Bill in Chancery, in former days, in English law, was a written statement of the plaintiff’s case whereby he complained of the wrong upon which the suit was based and prayed for relief. By the Judicature Acts 1873 and 1875 its place was taken by a writ and statement of claim (see [Pleading]).