Outside of the French arsenals it is to be doubted if anybody knows anything more about the new explosive, melinite, further than that it is one of the compounds of picric acid—and picric acid is a more frightful explosive than nitro-glycerine. I find in my scrap-book the following excerpt from the London _Standard_, describing the artillery experiments at Lydd with the new explosive which the British Admiralty has lately been examining. The _Standard_, after declaring that the experiments are “entirely satisfactory,” says: The character of the compound employed is said to be “akin to melinite,” but its precise nature is not divulged. We have reason to believe that the “kinship” is very close. The details of the experiments which have lately been conducted at Lydd are known to very few individuals. But it is unquestionable that the results were such as demonstrate the enormous advantage to be gained by using a more powerful class of explosives than that which has been hitherto employed. There could be no mistake as to the destructive energy of the projectiles. Neither was there any mishap in the use of these terrible appliances. The like immunity was enjoyed at Portsmouth. A deterrent to the adoption of violent explosives for war purposes has consisted in the risk of premature explosion. But there is still the consideration that the advantage to be gained far exceeds the risk which has to be incurred. France has not neglected this question, and she is ahead of us. Her chosen explosive is melinite, and with this she has armed herself to an extent of which the British public has no conception. All the requisite materials, in the shape of steel projectiles and the melinite for filling them, have been provided for the French service and distributed so as to furnish a complete supply for the army and the navy. Whatever may be said as to the danger which besets the use of melinite, the French authorities are confident that they have mastered the problem of making this powerful compound subservient to the purposes of war. Concerning the composition of this explosive great secrecy is observed by the French Government, as also with regard to the experiments that are made with it. But Col. Majendie states that melinite is largely composed of picric acid in a fused or consolidated condition. Of the violence with which picric acid will explode, an example was given on the occasion of a fire at some chemical works near Manchester a year ago. The shock was felt over a distance of two miles from the seat of the explosion, and the sound was heard for a distance of twenty miles.