1 earth. It is thus possible to determine how } great an apparent displacement of Venus upon »the sun's surface arises for so many miles of distance between the observers on the Earth, and thus the distance of Venus is determined by application of trigonometrical rules. And when the distance of Venus from the earth is determined. the scale of the whole solar system can be known. The transits of Venus have been depended upon for over a century for giving the most perfect data from which to estimate the distance of the sun. t WHEN A UNITED STATES SENATOR DIES. COLDWATER. Mich. How is the place of a Senator filled at his death? NELLIE HILL Answer.-The United States Statutes provide as follows for the filling of vacancies occurring before the meeting of legislatures and during the session of legislatures: "Whenever on the meeting of the Legislature of any State a vacancy exists in the representation of such State in the Senate, the Legislature shall proceed, on the second Tuesday after meeting and organization, to elect a person to fill such vacancy in the manner preBribed for the election of a Senator for a full term." And "whenever during the session of the Legislature of any State a vacanpy occurs in the representation of such State in the Senate, similar proceedings to fill such vacancy shall be had en the second Tuesday after the Legislature has organized and has notice of such vacancy." The Constitution of the United States adds the subJoined: "If vacancies happen by resignation or otherwise during the recess of the Legislature of any State, the Executive [that is, the Governor] thereof may make temporary appointments until the next meeting of the Legislature, which shall then all such vacancies." THE SIEGE OF PLEVNA: L MERRIAM, ind. Give an account of the siege of Plevna, and state number of men engaged and killed on each side. SILAS COOK. Answer.-Plevna is a town in Bulgaria, sitmated in the midst of hills near the shores of the River Vid. It became of military importance in the Russo-Turkish war, as the intersection of several routes of travel. Osman Pasha occupied the town July 18, 1877, with about 50,000 troops in readiness for the Russian army, then grossing the Balkana. Two attacks made on his position, July 19 and 20 and July 29 and 31, were repulsed, with considerable loss to the Bus sians. The Turks, however, did not follow up the advantage they had gained, but contented themselves with preparing for a vigorous defense of the city by the construction of fortifications of great strength. Sept. 7. Russian and Boumanian armies having been united under the command of Prince Charles of Roumania, the battle was again opened with a vigorous artillery duel, which continued until Sept. 11. Between Sept. 12 and 18 the Russians made several assaults, with the result of taking some redoubts, but with terrible alaughter on both sides. The Russians now began a regular siege of the city, surrounding it, and drawing their lines closer and closer about it. Osman Pasha had a fores of about 50,000 men in the city, with 150 guns. The investing army at that time was estimated at 80,000, with about 400 field guns, but it was probably re-enforced subsequent to this date. In spite of their efforts to cut off all aid from Osman Pasha, relief corps, consisting of twenty cavalry regiment, two batteries, wagons containing supplies and ammunition, under the command of Shefvet Pasha, succeeded in reaching the city Sept. 22 on the Sophia road. General Todleben was now placed in command of the Russian force, and his first effort was to secure the defense 200 1,200 of all roads, BO that no further assistance might reach the beleaguered city. Oct. 24 two assaults were made, and another Oct. 31. These drove Osman Pasha from several of his outer fortifications and enabled the Russians to advance six miles nearer the city. This advance completed its investment, and from that time until its surrender it was entirely cut off from the outer world, every subsequent attempt at its relief being repulsed. Nov. 18 the Russian army was within three miles of the city and demanded its surrender, a demand indignantly refused by its commander. However, the situation in the city was now becoming more desperate every week, not only because of the short supply of provisions, but because an entire lack of hospital accommodation was seriously decimating the army. Dec, 7 the provisions › were entirely exhausted. Deo. 9 Osman Pasha decided upon making a sortie upon the Russian lines, not apparently with any hope of making his way through them, but because his sense of duty would not permit him to surrender without striking a blow at the enemy. The Russians knew of his intention, and were ready for the attack, which was made just at daybreak. A furious Aght of some are hours ensued, when Osman Pasha being wounded, the Turks withdrew behind their intrenchments again, and word was sent to the Russians that the Turkish commander was ready to treat for the surrender of the city. Everything was surrendered unconditionally— 30.000 prisoners, 128 officers, and 100 guns being handed over into the possession of the Bussians, The capture of Plevna virtually ended the war in Europe. The losses at Plevna, includ ing the early battles in July, are given as 30,000. on the aide of the Turks and 40,000 for the Bussians. GENERAL SCHUYLER-MARSHAL NEX. SOUTHALL, Tenn. *1. Why did Congress remove General schuyler from command of the army of the North when it was opposing the invasion of Burgoyne in 1777! 2. Why was Marshal Ney shot as a traitor? W. D. OVERBI Answer:-1 The need, or the justies, of this action has ever been a disputed question, some writers approving, others condemning it. The patriotism and excellent intentions of General Schuyler were not then, nor hays they over since been, questioned, but the belief on which Congress acted in removing him, that his military talents were not sumcient for his responsible position, seems to have had some justification. The Northern army was at that time feeble and poorly equipped, and to resist the impending invasion it was plainly necessary that it should be led by a commander whose decision and enthusi asm oguld inspire his men to heroic efforts. Schuyler obviously was not the leader needed. His letters to Washington were despondent in the extreme, appealing 'in 'the ́ most melancholy strain for re-enforcements and supplies. His lack of influence over his men and his failure to inspire them with confidence were apparent, and gave Washington great anxiety, so that when Congress decided to put Gates in chief command the commander-in-chief made no objection to the change. The fall of Ticonderoga, for which Schuyler was deemed responsible, was made the ●ccasion for a vote, Aug. 1, to relieve Schuyler in favor of Gates. The former officer, though undoubtedly mortified, accepted the change in a manly spirit, and remained on the field of action, aiding his new superior in conducting the campaign. In writing to a friend be said that Congress was justified in depriving him of his command, since "it was their duty to sacrifice the feelings of an individual to the safety of the States when the people who only could defend the country refused to serve under him." A court of inquiry subsequently fully exonerated Schuyler from responsibility for the loss of Ticonderoga, and he was again offered a command, but apparently rather from consciousness of his ewn lack of military ability than from any pique, he declined to take it. 2. When Napoleon abdicated, in 1814, Ney offered his allegiance to the Bourbon cause, and was made chief commander of cavalry by Louis XVIII When Napoleon returned Ney was put in command of the army sent to resist his invasion, and promised the King under oath that he would bring him to Paris "a prisoner in an iron cage," But when the Marshal saw his former companions in arms locking to their old leader, when his own troops called upon him to lead them to their chief, against whom they would never fight, he yielded to the general impulse, proclaimed Napoleon the enly legitimate sovereign of France, and joined him with his army. He fought with superhuman courage on the Aeld of Waterloo, but was not sufficient to turn the current of that ill-fated battle. Upon the second restoration of the Bourbons Ney was brought to trial for treason, condemned, and shot. STANLEY AND LIVINGSTONE IRVINGTON, Iowa. Give a short history of H, M. Stanley's journey from the time he left Zanzibar, Jan. 6, 1871, till he found Dr. Ervingstone, and all that is known of Livingstone from that time until his death. J. R. ARMSTRONG, Answer.—Stauley proceeded from Zanzibar to the nearest point on the main land, Bagamoyo, where he spent nearly two months fitting out a caravan for his journey into the interior. He started on his travels in February, 1871. He Journeyed first toward the south and west, then westward, trending to the north, till he reached the town of Unyanyembe, thence directly west to Ujiji, on the east shores of Lake Tanganyika, where he found Dr. Livingstone. He gives in his narrative, "How I found Livingstone." the names of a number of native villages and towns which he passed through, but as they are not recorded on the maps of Africa, it is hardly worth while to enumerate them. Stanley reached Ujiji Nov. 10, 1871, after a journey of 236 days from the coast, and remained there for some two months with Livingstone. He explored the north end of Lake Tanganyika, and about the first of January, 1872, the two started eastward for Unyanyembe, where Stanley provided Livingstone with an abundant supply of such things, as he needed, and bade him farewell. This was on March 15, 1872, and after Livingstone had waited wearily at this point for five months, a troop of fiftyseven men and boys arrived, good and faithful fellows on the whole, who had been selected by Stanley himself. Thus attended, he started Aug. 15 to explore Lake Bangweolo, going down on the east side of Tanganyika in January the party had reached the marshes on the shores of Bangweolo, and their purpose was to go around by the south and up the west shore of this lake to find its sources. The doctor was attacked with dysentery, and the journey through the marshes was painfully slow, especially as that Was the wet season, and there almost • constant own-pour of Dr. Livingstone · worse and worse, but be pressed on. last in the middle of April, he had become so weak that he had to be carried on a litter. On April 29, a native village on the south shore of the lake was reached, and there the party stopped. On the morning of May 1, "the great master," as the natives called him, was found kneeling by the side of his bed, dead. His faithful men preserved the body in the sun as well as they could, and wrapping it carefully up, carried it and all his papers, instraments, and other things across Afrios to Zansibar. It was borne to Great Britain with all honor, and, April 18, 1874, was deposited in Westminster Abbey with tokens of mourning and veneration such as that country accords only ta her noblest sons, bra was rain. SIR WILLIAM WALLACE. WASHINGTON, D. G Give a brief account of the life and times of Will iam Wallace. BADGER Answer-Sir William Wallace, the national hero of Scotland, was born about the year 1270. He was of Anglo-Norman descent, the youngest son of Sir Malcolm Wallace, of Ellerslie. So many romances have been written about this hero that it is dimcult to separate the truth of his history from that which is legendary. Authorities differ as to the origin of his connection with the insurrection of 1297 against the English. One story asserts that he had previously killed a young Englishman in a quarrel and had been outlawed: others that the death of the lady of his love, who had been killed in a raid by brutal English soldiers, caused him to swear undying hatred to England. It is not necessary to suppose that either of these stories is true, though both may be, for Scotland was at that time so grievously oppressed by the English and suffered such wrongs through the petty tyranny at every reside. And his memory has bined been cherished with affection in both countries as that of a true hero and champion of liberty. A very good idea of the times of Wallace tan be gained by reading The Scottish Chiefs," by Miss Jane Porter. of governors sent thither by England well as from the unlicensed and brutal soldiery let loose upon them at the slight est provocation-that there is no wonder that's young man like Wallace, of noble birth and dauntless spirit, should be eager to strike a blow for his country's freedom. The rebels, who were headed by Sir William Douglas, Murray of Bothwell, Wallace, and young Bruce, compelled the surrender of English garrisons in the castles of Durisdeer and Sanquhar. Edward I sent into Scotland an army of 40,000 men to quell the insurrection. The advance guard of this army met a night attack by a band under Wallace, who, however, was forced to fall back by the numbers of the enemy. The Scotch were repulsed in the battle of the following day, and, not being suff. cfently well organized to make a stand, a treaty was made by the chiefs with the English: Wal lace and Murray refused to accede to the terms of submission and retired fato the hilly country of Northern Scotland, where they recruited & pow erful army, and surprised and captured several Important English garrisons. A large English army was now Enown to be on the march toward Stirling. Wallace Immediately set forth to meet it and arrived before Stirling with 40,000 foot and 180 horse. The English troops, numbering 50,000 foot and 1,000 were commanded by horse, " the 1-0 70 LUBAX CAVES IN VIRGINIA Would like a description of Luray Cave. 7 49 9.58 SABETEA, Kan. G. W. STEVENSON. Answer.-The Luray caverns-for there are three remarkable openings into the earth here, though but one has been cleared out and explored to any extent-are in Page County, in the Shenandoah Valley, Virginia The existence of these caves was unknown to the inhabitants antil 1879. When one of them was then opened and examined there were found in it evidences that the cave had been at some time occupied by men and animals, though at what period it was impossible to sav. Bones of animals and men were found, and the walls of the caye were much blackened, showing that fires had been kindled therein. In one part the floor was found smooth and even under the debris, showing that the stalagmites had human agency for this purpose. been removed by, som This cave abounds in singular and interesting objects and stalactites of great size and variety. One, deposited from the dripping waters-stalagmites ན་ of Surrey tree pardon was offered Earl the Empress column, is a pure white mass of A the Bootch in the name of the English King, but it was in- hands alabaster seventy feet high, reaching from the floor nearly to the roof. Another pendant formation, nearly equal to the former in length, vibrates for a minute when struck, and in one of the rooms of the cave, called the Cathedral, are twenty slender columns which sound part of a scale when struck successively. Many remarkable specimens from this cave have been sent to the Smithsonian Institution at Washington, but there is still left in it a whole mine of curiosities waiting the enterprise of scientific explorers. leido HE MEASUREMENT OF LATITUDES belles 1 there any difference between meriahar and AAH RIDGE Wis. found by careful measurement of the meridians that true latitude? 2. Professor Mitchell says that it in degree of latitude is greater toward the poles tha toward the equator, How is this capoful measures ment made? this a guerrilla warfare was carried the always taken on the meridian of lace and his Answer-1. No: the latitude of I The latitude of any p is in the He was dragged at the tails of horse then his horizon, the angular measurement of s minster Hall to West Smithfield, and drawn, and quartered. His head was set upon London bridge, and his limbs were exposed at Newcastle, Berwick, Perth, and Stirling But the English populace sympathized with his fate as that of a fellow countryman rather than an enemy, and in Scotland tears were shed for him ΟΙ drawn from him to the star with the horizon's plane would be 0. Now, suppose this obeer ver to move northward from the equator one degree The equatorial plane no longer passes through his zenith, but is one degree south of it, "and htt vertical line makes with that plane an ankle of one degree. In like manner the north pole has fiabil readily by observing the greatest and least, alti- THE BATTLE OF ARBELA DOWNEY CITY. Cal. Would like a sketch of the battle of Arbela. JOSEPH SMITE, Answer. The battle of Arbela was fought in the month of October, 331 B. C., between the forces of Darius, the Fersian, King, and those of Alexander the Great, The armies met on a plain about twenty miles from the village of Arbela, in the valley of the Tigris River. Alexander had inwaded Asia three years before, and had then met and vanquished the armies of Darius. This third battle was looked forward to by both commanders as a conflict of the greatest importance, which should decide who was to be the ruler of Asia. Alexander'army consisted of 40,000 foot soldiers and 7.000 cavalry Darins had 40,000 mavalry, and, it is said, about 900,000 infantry. though this estimate may have been too large. But it is known that the Persian army, recruited from all the Central Asian tribes, fely twenty times as large as that of the The battle-held was chosen bf Dafins himself, with direct reference, to the convenience banhaling his great hosts on this open plain. The march of the army of Alexander was south ward along the banks of the Tigris. On the last day of September it came in sight of the Persian army, Darius expected an attack from his foo that night, and therefore formed his troops in order of battle and kept them under arms all night. Alexander, however, though advised by He of the darkness, refused to do so, and ordered Macedonians, but these were always beaten back by charges from the horsemen from Alexander's second line. Meanwhile, this commander was holding the troops of his wing fresh, ready to seize any opportunity to strike a decisive blow. The time came when a large body of horse on the Persian left wing left their station, riding off to take part in the cavalry encounters on the Persian right. This left a huge gap in the Persian front into which Alexander charged with his horseguards, followed by his central phalanx. This advance made its way into the Persian center, arriving so near the person of Darius himself that his charioteer was killed with a javelin. The King's courage now quite forsook him, and mounting a fleet horse he galloped from the plain. The fight continued for several hours, but with every onslaught the superior discipline of the Ma'cedonian troops gave them the advantage, and having no leader to rally them, the entire Asian(ops, 260 barons, 16 Scottish representative peers, army was soon in full fight from the field. They were pursued to Arbela, where Alexander took possession of the King's treasures and stores, though the King himself had escaped, and a few days after the battle Alexander entered Babylon. then "the oldest seat of earthly empire," as its acknowledged ruler. The battle of Arbela is re-spection of the bishops as well as of the inferior corded as one of the great decisive battles of the world, because by it the mighty ancient Persian empire was destroyed,and the Orient first opened te the inroads of western civilization. tion. Under Gladstone's guiding hand the reforms of Great Britain have been possible; the franchise has been extended; the working classes have been sought to be elevated, their 'condition improved, and all internal interests have been fostered. From the great Disestablishment of the Church measure of Gladstone down to the fran "chise bill the distinguished Commoner has been moving to break the bonds which have held down body and conscience in Great Britain. 2. The British House of Lords consists of peers who hold their seats by virtue of hereditary right, by creation of the Sovereign, by virtue of office, the English bishops; by election for life, as the ́ Irish Peers, and by election for duration of Parliament, as the Scottish peers. Exclusive of twelve minors, the House of Lords consists of 5 princes of the blood, 2 "archbishops, 20 dukes, 18 marquises, 113 caris, 27 viscounts, 24 bish PARTIES AND PEERS IN GREAT BRITAIN. ORION, Ind. 1. What are the differences between the Liberal and Conservative parties of Great Britain? 2. What is the composition of the House of Lords, and what are The meanings of the tities archbishop, bishop, duke, marquis, earl, viscount, baron, and peer? L. M. Answer-1. Since the year 1828 the name Liberal has been given to the more advanced Whigs and reformers, and the name Conservative has since 1830 been given to and accepted by a political party whose leading principles were the preservation and continuance of the national institutions as they existed. But there is just now a alearer cut difference between the leading political parties in Great Britain. There they have no assemblies corresponding to our National Republican and National Democratic conventions. In these and in our State conventions, and from them down to our town, ward, and precinct meetings and clubs, the platforms of principles of each are debated and discussed by the humblest elector. In Great Britain the policy of the Liberals will be foreshadowed by Gladstone, or some other leader to be chosen, should he be unyable by ill-health to lead in the coming campaign, and that of the Conservatives may be expected from Lord Salisbury when he Lakes the platform tor public political discussion. The utterances of these leaders will then become the watchwords and platforms of their respective parties. But when we review' the eral administration and the course past Lib Con servatives, we may say that their policies are thus summarized: The policy of Gladstone and the Liberals has been to make strong home government; while the Conservative drift and policy are to make a strong foreign administra elected for each Parliament, and 28 Irish representative peers, elected for life, in all 513 persons. The princes of the blood are of course members of the royal family. The archbishops are the chiefs of the clergy in their provinces, and have within them the in clergy. Originally in England the dignity of used to include the whole mobility |