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Inrentions.-We have before us record of all the improvements in the arts mechanics and manu- factures invented in the United States and entered in thes Patent Office since the year 1793. when the first patent law was passed. It is contained in document transmitted last winter to Congress by the Secretary of State, and comprises a list of less than six thousand fnventions, the product of Amer

 can ingenuity in tho of thiry-six years. Dur ing that period, the plough has been made to under go one hundred and tioentytour improvements. One hundred and nineteen threshng machines have been invented. That great problem, the extraction of butter from without fatigue to the operator, has been solved in eighty ways by the invention of eigh- ty churns, and the laundress has been allowed her choice out of one hundred and twenty-five washing machines. One hundred and twenty machines have been invented for making nails; the number of new spring machines exceeds hundred; the number of improvements in the loom is seventy-three and in the manufacture of hats forty-three. The number of steam engines exceeds a hundred, that of stoves is nearly the same. There have been forty-two new ways contrived for manufacturing combs, in which we presume is included the late ingenious invention for cutting them by single operation into all sorts of figures. Four new machines for panng apples have been invented and three gridirons Pencil

 cases, ramrods, razors and suspenders, have each been subject to various improvements. An inven- ton has been patented under the name of "dog power; another termed "elevator of pots and ke- tles and third destined for useful domestic pur- pose under the sonorous Greek name of Hacma- gaactophorus. Y. E. Post