It may be a puzzle to Americans why, in the face of disasters and accidents to these Zeppelins, Germany is spending about $4,000,000 on her aerial fleet. Now we come to a very significant point. I know and certain members of the German General Staff know, as well as trusted men in the aërial corps, that there are two conditions under which airships are operated in Germany. One is the ordinary more or less well-known system which characterizes the operation of all the passenger lines now in service in the Empire. It is the system under which all the disasters that appear in the newspapers occur. Airships that are used in the general army flights and maneuvers are also run under the same system as the passenger dirigibles--for a reason. The other system is an absolute secret of the German General Staff. It is not used in the general maneuvers, only in specific cases, and these always secretly. It has been proved to be effective in eliminating 75 per cent. of the accidents which have characterized all of Germany's adventures in dirigibles and heavier-than-air machines. These statistics are known only by the German General Staff office. Let us go into this further. Critics of the German dirigible who foolishly rate the French aëroplane superior point out that the Zeppelins have three serious defects--bulk and heaviness of structure, inflammability of the gas that floats them, and inability to store enough gas to stay in the air the desirable length of time without coming down. The secret devices of the German War Office have eliminated all these objectionable features. They have overcome the condition of bulk and heaviness of structure by their government chemists devising the formula of a material that is lighter than aluminum, yet which possesses all of that metal's density and which has also the flexibility of steel. Airships not among the twelve that Germany admits officially are made of this material. Its formula is a government secret and England or France would give thousands of dollars to possess it.