What a boon for the housewife as well as the camper-out, the more so since one hundred lozenges, weighing a little more than four ounces, will make one hundred cups. The processes by which coffee is thus concentrated are very interesting. To begin with, the beans are roasted in an enormous oven and ground in a huge mill. Then they are put into a great iron vessel, which is nothing more nor less than a gigantic coffee-pot, holding two hundred and forty pounds at a time. Hundreds of gallons of filtered water are pumped into the coffee-pot, which acts on the drip principle, and the infusion is drawn off to an evaporating tank. A steam pump keeps the air exhausted from this tank, so that the coffee is in vacuo, being heated meanwhile to a high temperature by steam pipes. The water it contains rapidly passes off, and the coffee is of about the consistency of molasses when it is taken out. It is poured into trays of enameled ware, and these trays are placed on shelves in another evaporator. When the trays are removed, a short time later, the coffee is a dry solid, which is scraped off the trays, ground to powder, and moulded into lozenges. AN UNFORTUNATE EXPERIMENT. Some weeks ago we chronicled in GOLDEN DAYS the particulars of a competition race in Europe, which was unique in its rules and intended to be scientific in its character. The Emperors of Austria and Germany arranged for a contest between the officers of their respective armies in the way of a long-distance ride between Berlin and Vienna, Austrian officers to ride from Vienna to Berlin, and German officers from Berlin to Vienna. This entire distance of four hundred miles was to be covered in the shortest possible time, each rider using but one horse and choosing any route which suited his fancy. Prizes were offered for the first man who covered the distance, and another prize was to be given to the contestant who brought his horse to the finish in the best condition. It was a purely military race, and the outcome was expected to prove a great many things of value to Austria and Germany as to the endurance of man and horse, and naturally excited great interest, not only in Europe, but also in this country. The result, however, has been far from gratifying. The start was made on time, and an Austrian officer was the first to cover the distance, in three days, one hour and forty-five minutes. A notable victory, no doubt, but at what a cost! Hardly had the applause died away, when the noble horse which had accomplished the feat, died in his tracks; and this was only the beginning. Since then fifteen or twenty horses have died, and every one of the remainder are dying or rendered forever useless. Stories of pitiless cruelty on the part of the riders have been reported--of whippings, spurrings, and even absolute torture, to urge on the poor animals.