to imagine what would have been the effect upon the Prussians during their advance to the Danube, if a Stuart, a Forrest or a Grierson had operated against the railways upon which the supply of the invading army necessarily depended. Nor were the raiding opportunities altogether on the side of the Austrians. The Prague-Olmütz line of railway, of the most vital importance to Von Benedek, ran parallel to the Silesian frontier, and in close proximity to it. This line of railway should have been a tempting object to a raiding column of cavalry. If it had been cut at any point near Böhmisch-Trübau, the Austrian army would have been in sore straits for supplies. Vigorous and determined cavalry raids against the railroad between Böhmisch-Trübau and Olmütz would surely have been productive of good results, even if the road had not been cut; for Von Benedek was extremely solicitous about his communications in this part of the theater (as is shown by his long detention of the IId Corps in this region), and an alert and enterprising raider might have found means of detaining from the main Austrian army a force much larger than his own. But neither the Austrian nor the Prussian cavalry was so armed as to be able to make raiding movements with much hope of success. Cavalry without the power of using effective fire-action can never accomplish anything of importance on a raid; for a small force of hostile infantry can easily thwart its objects. The dragoon regiments were armed with the carbine, it is true, but they seem to have been studiously taught to feel a contempt for its use. At Tischnowitz (on the advance from Königgrätz to Brünn) a Prussian advanced-guard, consisting of dragoons, kept off a large force of Austrian cavalry by means of carbine fire, until the arrival of reinforcements enabled the dragoons to charge with the saber. According to Hozier, the Austrian cavalry pulled up sharply, “half surprised, half frightened, to find that a carbine could be of any use, except to make noise or smoke, in the hands of a mounted man.” Yet nothing seems to have been learned from this incident, and it was not until a brigade of German cavalry, consisting of three regiments, was stopped at the village of Vibray, in December, 1870, by a bare dozen of riflemen, and the Uhlans were everywhere forced to retire before the undisciplined _Francs-tireurs_, that the necessity of fire-action on the part of all cavalry was forced home to the Germans. Even yet the strategical value of the American cavalry raids seems to be under-estimated by European military critics, who seem also to regard anything like extensive fire-action on the part of cavalry as scarcely short of military heresy. Von der Goltz says: “Much has been spoken in modern times of far-reaching excursions of great masses of cavalry in the flank and rear of the enemy, which go beyond the object of intelligence, and have for their aim the destruction of railways, telegraph wires, bridges, magazines and depots.