Durlnp: the week ending October 17, oyer 1,100 passengers arrived in California by the Central Pacific Railroad. The London house painters held a meeting recently,for thepurposeof forming a society of workmen to promote technical education in connection with house painting and decoration. It is said that the railroad connecting the Hudgon River railroad at Spuy-ten Duyvil with the Harlem Railroad, and the new Union depot to be built on Fourth avenue, will be begun this fall. The citizens of Louisville, Ky.,have voted on a proposition to subscribe $500,000 in aid of the projected Louisville, New Albany, and St. Louis air-, line railroad. The motion was carried by a majority of about 500. ; The extent of omnibus travel in Paris may be judged from the fact that, during the year 1868, the number of persons carried in omnibuses amounted to 120,000,000, or nearly sixty-five times the population of that city. Russia has established at Warsaw a mechanical school for women, with the object of training them in all kinds of handicraft .that may be pursued without injury to health. The school is to be under the immediate supervision of the government. It has been discovered by careful experiments in Charleston that the weight of a bale of cotton varies slightly with the temperature. A fall of ten degrees in the thermometer causes a bale of cotton to gain about a pound and a half in weit;ht. heSan Francisco papers say that the first article of tinware manufactured from tin mined in the United States has just been completed in that city. It is a case to contain the Pioneers'certificate of honorary membership presented to the Hon. Wm. H. Seward. The Austrian Lloyds Steam Navigation Company's fleet, at the end of 1868,consisted of 69 steam vessels of an aggregate tunnage of C2,320,and of 15,800 horse power, and at the present time the total number ot vessels has been increased to 73, with a tunnage of 70,000. The car shops of the Lake Shore Railroad were destroyed by fire on the 17th of October. Passenger and freight cars, lumber, car material, and tools ivere entirely destroyed. The loss is over $300,000 ; fully insured. One hundred and fifty workmen were thrown out of employment. The Ironmonger suggests the desirability of constructing trains almost wholly of iron. They might be so constructed of this material as to offer greater resistance in case of collision without materially increasing their weight, while the danger from fire would be almost nil. Durability and economy are other advantages claimed. The proprietor of an extensive cotton factory near Stockholm, Sweden, has purchased 12,000 acres of land in Dunklin and Stoddard counties, Missouri, where he will build factories, mills, etc., establish colonies,and carry on the cultivation and manufacture of cotton. The enterprise will give employment to 1,300 families. Some of these are on the way from Sweden . Within the city of Portland, Maine, and a circuit of ten miles around it, there are about twenty brick yards, which produce about 20,000,000 bricks per year. They are all operated in the old-fashioned way, except the steam works at Stroud water. These works give employment to SO hands, and turn out about 33,000 bricks per day, which bring in Boston $2 a thousand more than common bricks. An important experiment ia about to be tried at the South Kensington Museum, London, to promote the instruction of women in science. By the permission of the Lord President, Professors Huxley, Guthrie, and Oliver are about to commence a course of lectures on natural science in November. The fees are low, and many ladies of high position in society have expressed their willingness to assist in the experiment. Professor Maillefert continue his blasting operations at Hell Gate with, 80 far, very encouraging success. He has raised and carried ashore 1,575 cubic yards of fragments of rock, besides a large quantity which has been washed away after being broken up. Since August 2, the date of commencing operations, 279 blasts have been made on Way's Reef, besides 44 on Shell Drake, and 15 on Pot Rock. The probability is that in a few months longer a depth of 25 feet at low water will have been obtained. A modification of Thenard's process for the purification of lamp oil is proposed by M. Michaud. He blows air through the oil while sulphuric acid is caused to fall into it, in very finely divided streams, to the amount of 1 or 2 per cent. Agitation is thus produced, and the froth is skimmed off as long as it forms. When the froth ceases to appear the oil is purified, and has only to be washed by a current of steam, so arranged as to keep the liquid at a temperature of 100 Cent., for about half an hour. Professor Morren states that the actinic rays of solar heat can be thor. oughly arrested by a thin layer of a perfectly limpid solution ot sulphate of quinine, not more than a few millimeters in thickness. He says that a useful application of this property would be to manufacture double panes of glass which could contain the solution, and replace by them the less efficacious yellow glass used by photographers in their dark room. They would thus be enabled to work in a light instead of a dark room.