AN INDIGNANT INVENTOR.—Andrew Whitely has issued a printed memorial to Congress wherein he pitches into Secretary Browning, Commissioner Foote, and Chief Examiner Hodges, because they refuse to execute the decree of a court which ordered certain patents to issue to said Whitely. In his memorial, he twits the Honorable Andrew Johnson of " being politically dead," " a rebel and a knave," and then goes on to compliment President Grant, and calls upon him to name a fit man for the Commissionership of Patents, and also " to name three men fit to take the place of the present unfit Board of Examiners-in-Chief. He also wants Congress to enact a law to send to the penitentiary officials of the Patent Office who refuse to execute the decision of the judge. This is a good suggestion. For some reason Mr. Whitely has had a good deal of trouble in getting his patents issued to suit his views, and, if we mistake not, this is not the first manifesto that he has put forth on the subject. It appears to us that if the Commissioner refuses to execute the decrees of the courts, the shortest and best way is to have him arrested and i brought up for " contempt of court," and compel him to be- j have in a legal manner. We are not now speaking of the J merits of the case, but desire simply to point out to Mr. Whitely a simple remedy, the choice of which may save him th$ trouble and expense of printing sensation pamphlets. REPINING OP ALLOYED GOLD. —Certain kinds of gold, especially from Australia, are alloyed with antimony, by which they are rendered brittle and unfit for use in many practical applications. One method of removing this ingredient has been to melt the gold with oxide of copper, which converted the antimony into a volatile oxide, but left the gold alloyed with copper, which has to be removed by a subsequent operation. Another method consisted in melting the gold with corrosive sublimate, by means of which both antimony and mercury were driven off as volatile chlorides, involving, however, serious loss of mercury. A new and much improved plan has finally been adopted in Australia, applicable to the purification of gold from silver and the baser metals, and which consists in passing a stream of chlorine gas through the melted metal for an hour or two, and after allowing the gold to harden, the still liquid chlorides are poured off. A subsequent operation recovers the silver and every remaining proportion of gold. LAEGE PUMPS.—The Colliery Guardian notices some centrifugal pumps just completed at the Hammersmith Iron Works, England, which are the largest ever made. Each is intended to lift 250 tuns, or upwards of 50,000 gallons of water per minute, to the height of six feet. The revolving disk, or " fan," is 4 feet 6 inches in diameter, and its width at the periphery 8 inches. The suction and delivery pipes are 3 feet 6 inches in diameter. The whole hight of each pump is 11 feet 6 inches, and its length 9 feet, while the extreme width in the direction of the main spindle, is 8 feet 6 inches. The spindles are of Bessemer steel, 6 inches in diameter through the disk. The weight of the disk is 18 cwt., of the spindle 16 cwt., and of each side casing 2 tuns 13 cwt., the whole weight of each pump being 7 tuns. SHEEP multiply so prodigiously in Australia, that the boiling down of the animals merely for the extraction of the tallow, has grown into a business of huge proportions. Four hundred sheep are cut to pieces, and thrown into a big boiler, steam from another boiler is turned on, and soon the carcasses are reduced to a pulp; the tallow rises to the top, and is drawn off through large taps into barrels for export. The gravy and other juices, the remains of the meat, and the bones, which are so softened as to crumble easily in the hands, are given to pigs. Four thousand sheep are boiled down in a day. THE New York Society of Practical Engineers recently spent a Whole evening in discussing the feasibility of flying. The discussion was simply a rehash of all the absurd notions upon that subject, which have troubled the minds of enthu siasts for nearly a century. Not a single practical idea was suggested. SHAEP JUSTICE.—A man in England was recently fined for holding a rough political controversy in the cars, to the annoyance of three other passengers. The court considered the case a gross one, and inflicted a fine of 3 upon the offender. If we could get such a fine as this upon similar offenders here, it would pay a man well to go about picking up jobs. A NEW illuminating material, recently patented in Germa ny, consists of a mixture of two parts of the poorest rape seed oil, and one part of good petroleum. It is burned in a lamp of peculiar construction, but somewhat similar to that of the ordinary moderator lamp, and gives a light not to be surpassed for purity and brilliancy. A CEMENT said to possess many advantages, and to be especially adapted for sealing up vessels containing benzoles, etherial oils, etc., is prepared by rubbing up finely ground litharge with concentrated glycerin. The liquid cement is to be poured upon the cork or stopper, or it may be applied with a brush. FOE a polish for mahogany cameras, take three ounces of white wax, half an ounce of castile soap, and one gill of tur pentine. Shave the wax and soap very fine, and put the wax to the turpentine; let it stand twenty-four hours; then boil the soap in one gill of water, and add to it the wax and turpentine.