The largest hotel in this country, or in the world, is snid to be the Lindell House, now nearly completed, in St. Louis, Mo. It is 272 feet frontI 227'feet deep ; 112 feet high, and fronted with eream colored magne-sian limestone. Its cost, unfurnished, will be $GOO,OOO. It has 500 rooms, and can receive 1,200 guests. The St. Louis Democrat says:—.”The brick laid in its walls number 8,000,000, sufficient to paye an area or over 30 acres. This is in addition to 8,000 perches of rubble stone in the foundation, 35,000 cubic feet of 'cnt stone iu the fronts, and other stone—in all costing over $100,000. If a boarder desires to tnke a walk through the wide and lofty corridors before breakfast, he may tral'ej one and a quarter miles without going over the same floor twice. Besides the marble flooring and other flagging, 300,000 feet of lumber huye been used in its floors, and it will requit'e 30,000 yards 9. cnrpet to cover them. Some 16,000 feet of gas pipe are requil'ed to light it, with many thousands of burners; 120,000 lbs. of lead and 30,000 Ibs. of iron pipe to supply it with water. besides that for heating it. Fortv or fifty miles of bell wit'e will be required. and three wnter “tnnks, containing 30,000 gallons 01' 50 tuns of water, will rest upon its roof, which water is pumped up with steam engines." A TARGET formed of three cast-iron blocks, ench 8 feet long, 2 feet high, and 2! feet thick, eacTI weIghing 8 tllns, wns smashed to pieces with ten 68-pownd shot fired at a distance of 400 yards. RED HOT GUNS.—There is no doubt whatever that cast-iren, long submerged in the 6ea, will, on being exposed to atmospheric ail', become hot even unto rednesp and sometimes fall to pieccs. Such was the case with some iron guns which formed part of the armament of one of the yessels of the Armnda, sunk off the Island of Mull; and the cast-iron balls with which some of the guns of the Mary Rose, .sunk off Spithead temp. Henry VII!., were loaded. Mr. Wilkinson, in his ..Engines of War.”remarks, p. 242:—.”It is also an extremely curious fact that the cast-iron gratings which haTe been long immersed in the porter backs or vats of large London breweries possess the same property of becoming hot on exposU1'e to the atmosphere when the porter is drawn off for the pm'pose of cleaning them." A BOLD MECHANICAL PROJJWT.—By the Bessemer process of making stcel and wrought iron directly from the ore, the wrought iron IS run in a melted stnte into molds, and thus forms arc cast of this material. This has suggested the daring scheme of casting an iron ship, with its sides, beams, braces, &c., all in one piece! In cnse of a naval yessel to be protccted by 4 !-inch shot-proof plates, of course the mold would be made tbick enough, and thcse would be cast as a part of the ship. When this magnificent idea is realized, we shall suggest placing the ship in a bath, in a close dock, and coppering or zincing her by the electroplate process. . m ?? ii THE TELEGRAPH INVENTOR AS AN ARTIST.—Long before Samuel Findlay Breese Morse began to dream of electro-telegraphy, he Was an accomplished artist. How beautifully does Leslie allude to him in his interesting autebiography! Yes, Professor Morse was the pupil of West, and was the companion of Leslie, Irving, Allston, nud others, in busy, plodding London. The City Hall (that builJing which came ncar “depnrting this life “ at the celcbration of the “completion.”of the sub-marine telegraphic caLle) contains one oC the best portraits of Lafayette ever painted. This is from the easel of Professor Morse. His Tery title of “ Professor.”comes from the fact thnt .he was t.he appointed Professor ofFineArtsat the foundation of the New York University. CULTIVATING LIQUORICE IN TEXAS.—The San Antonia Ledger says that a Mr. Poinsard of that city, has been eminently successful in the culture and acclimation of liquorice root, which he had imported from France. Of all the plants imported, one alone survived. So luxurinnt was its growth thnt it radiated, notwithstunding the dranth, covering the ground fora circumference of fifteen feet, proving that iITigation is not necessary to its succcssful growth. Indeed so successful has Mr. Poinsard been, beth in relation to its acelima-ture and culture, that he looks forward to the liquorice root becoming speedily nn article of extensive export from Western Texas. -. - — .— ThE STUDY OF SCIENCE.—Scienee is worthy of study by all men, because it is so intimately associated with all the pursuits of life. The whole animate and inanimate creation is embraced within its folds. It affords ample scope for the exercise of the most comprehensive and refined intellects, as well as those of humble and moderate pretensions. The mechanic and chemist, the poet and scllOlar, the mnnufactnrer nnd merchant, can find, in the pursuit of science, a boundless sourcc of pleasure and profit. .—. ? PROFESSOR MORSE has just received from the King of Portugal the cross of Chevalier of the Order of the Tower and Sword, being the fifth title of that chnracter which has been bestowed upon him by European Sovereigns for his invention of the telegraph. COAL OIL IN THE ROCKY MOUNTAINS.—The Rocky Mountains News says that coal oils has been discovered in the mountains, about five miles from Canon City. The spring is snpposed to be inexllanstible, and the oil is said to be fully as pure as thnt found in Pennyslvania. THE largest cast iron building in the world is now being erected at Havana, Cuha, by James Bogardus, Esq., of New York. It is intended for a warehouse to store merchandize on the dopk. In length, it is 800 feet; depth, 70 feet; hight, 50 feet.