The details of the Austro-German advance on the Third Army are now clearer. The Russian advance over the Carpathians was not met directly, but by a counter-advance on its flank. Here five army corps were concentrated, some of the fresh troops being drawn from reserve divisions on the French front, especially in the neighbourhood of Verdun. The journey across Germany is reckoned at three to five days, according to whether or not one includes the mountain marches at the end of the railway journey. Prisoners of the Prussian Guard tell me that they were given special training in hill climbing before they started. Meanwhile, the long months of comparative inaction had been employed in bringing up the heaviest German and Austrian artillery, both of which were last summer concentrated on the western front, and getting the range not merely of the Russian lines, but of squares which covered a good part of their rear. This was a long and toilsome operation, as these guns cannot be moved except by railway or, with great efforts and under good weather conditions, on roads which have a certain consistency. The potentialities of these guns are in any case limited; they cannot easily follow up an advance or get away in case of a rout. They can force the evacuation of a given area, but it may be possible to manoeuvre in such a way that the general position is but little changed. [Illustration: THE GREAT ATTEMPT OF THE CAUCASIANS] It will be remembered that the Austrians during the idle months have been covering the Russian lines in front of them with a ceaseless cannonade. This counted for little at the time. The Austrian artilleryman has only lately developed any accuracy; for a long time they continued in the most stupid errors of detail; they hardly ever placed a Russian battery, and evidently the process of range-finding has been long and very expensive. The Austrians rarely attempted infantry attack, knowing that they always met their masters; thus their ceaseless cannonade was not a preparation for an infantry offensive; and the Russians might even, if necessary, leave their trenches only partially occupied during the day, keeping less in those parts which were under the hottest fire and holding the whole line in force only by night. It was a very different story when the initiative on this side was undertaken by the Germans, who use artillery as a preparation for desperate attacks in close column. The difference in accuracy between the German and Austrian artillery fire was very soon discovered to the Russian regiments in front of them; and it was known that the Prussian Guard Reserve was here. The trenches were, therefore, occupied in full and held until they became untenable.