The Satan R.cket. We give the following detailed account ac-count of this invention from La France: M. L , the distinguished civil engineer en-gineer and chemist, of the Rue de Lon-dres. Lon-dres. Paris, has invented a rocket which will be a formidable engine of defence. He has christened it the fusee Satan. We have seen this rocket made and we will endeavor to describe it to our readers. rea-ders. To the end of an ordinary rocket is attached a very slight receptacle of tin, having exactly the shape of a conical con-ical bullet. In this receptacle is arranged ar-ranged a chamber filled with a composition compo-sition based, we believe, uponsulphuret of carbon, which composition, once lighted, gives out considerable beat. A fusee communicates from this chamber cham-ber with the top of the rocket. The tin bullet is filled, just before being used, with petroleum oil. The lighted rocket rises in the air and traverses the space necessary to arrive over a certain spot. Arrived above its object, the rucket sets fire to the fusee, the composition com-position in the chamber of the bullet takes light, bursts its envelope, and at the same time tires the petroleum, which falls like a sheet of flame and continues burning. This sheet offlame fills a snace of sixteen to twentv-four square metres, according to the size of the rocket. No. 1 throws one litre of petroleum, No. 2 two litres and No. three litres. They can be thrown a distauce of six kilometres, and aimed with great precision, being balanced by means of a long stick attached to each rocket, which maintains the elevation given to it at the time of discharge. Some interesting experiments were made with this weapon at St. Cloud on the 10th of last month. In less than ten minutes a considerable space o ground was covered with a sea of fire. A committee, composed of superio officers of artillery, presided over the experiments, and the general at their head was appalled by the terrible nature na-ture of this engine of destruction.