Inside Page, each insertion - - - 75 cents a line. Back Page, each insertion - - - $1.00 a line. _Engravings may head advertisements at the same rate per line, by measurement, as the letter press. Advertisements must be received at publication office as early as Friday morning to appear in next issue._ COTTON MILLS AND MACHINE SHOPS Can make great savings by using the Allen Governor. Its operation is unequalled and wonderful. Nearly all machinists once using these Governors become agents for their sale. They are simple in construction, not liable to get out of order, permit the speed of the engine to be changed at will, are neat in appearance, noiseless, very durable, save the engineer's time, save fuel, and are at once the most powerful and most sensitive Governors ever made. Russell (Cotton) Mills, Plymouth, Mass., March 20, 1876. S. B. ALLEN: Your Governor has been attached to our Corliss engine over one year, and has given perfect satisfaction. The engine was never governed until yours was attached, although we have tried three of the best kind of Governors known. When steam or work varied, the speed would vary, and we could only run our looms an average of 103 picks per minute. Since using your Governor, and solely on account of the perfect steadiness with which it holds the engine and machinery, we are enabled to run the looms regularly 112 picks per minute, MAKING AN ACTUAL INCREASE OF OUR ENTIRE PRODUCTION OF OVER EIGHT PER CENT. Your Governor saves coal, saves waste, saves care and labor of the engineer, and produces more goods and better goods. I have timed the engine a hundred times, and never found it to vary in the least. It is the honest truth that the Allen Governor holds it exactly on speed. Address L. C. KING, Superintendent. GERARD B. ALLEN & CO., St. Louis. FRASER & CHALMERS, Chicago. NEW ORLEANS MACHINERY DEPOT, New Orleans. PACIFIC IRON WORKS, San Francisco. FILER, STOWELL & CO., Milwaukee, Wis., or THE ALLEN GOVERNOR CO., BOSTON. HORSE STALL FLOOR, Patented through the Scientific American Patent Agency, June 4th, 1872. Rights sent by mail, with full instructions how to make and use, on receipt of $1.00; two for $1.50. It will keep the stall cleaner and the horse much more comfortable than any floor in use. It requires less than one-half of the usual amount of bedding. Any man can make them with very little expense. A liberal discount to carpenters or stable keepers in quantities of twelve or more. This floor is used throughout the New England States, and many parts of the South and West. State, County, and Town rights for sale. Agents wanted. G. W. GORDON, 256 Broadway, Chelsea, Mass. THE BIGELOW STEAM ENGINE. BOTH PORTABLE AND STATIONARY. The CHEAPEST AND BEST in the market. Send for descriptive circular and price list. H. B. BIGELOW & CO., New Haven, Conn. LeCOUNT'S PATENT MACHINISTS' TOOLS.