On the evening of the 20th, and morning of the 21st, many rumors reached our corps of Russian successes in the neighbourhoods of Gumbinnen and Suvalki, places which were said to be but little more than 100 versts from our position. The first-named is an open town in East Prussia twenty-five versts over the border; and the news gave great joy to our troops, as it proved that Germany was actually invaded. My informants of the details were Major Polchow and two or three officers who spoke a little English and French and were able to make themselves understood to me. There was said to have been desperate fighting, with heavy losses, the capture of many German prisoners, and the complete annihilation of a whole division of the enemy. The occupation of Gumbinnen was of great importance because it is on the Prussian direct line to Vilna, one of the most important railway centres in this part of Russia and perhaps in the whole empire. Although the Russians could not maintain their hold of it, its temporary occupation, no doubt, had an important effect, and possibly helped more than seems to have been seen in saving Warsaw from the enemy's hands. For had they succeeded in seizing Vilna, the Russian force in Poland would have been deprived largely, if not entirely, of reinforcements and supplies in general. It was one of the peculiarities of the war in Poland and East Prussia that neither side seemed able to keep an important position for any length of time. Places were seized which had a telling effect for the moment, and which one would have thought would have greatly influenced the fate of the campaign; and yet they were soon retaken or rendered untenable and the advantages of their seizure lost. In fact the fighting swayed to and fro. Here to-day, there to-morrow, the battle was lost or won. It was all a question of railways. On the 21st the Russians crossed the frontier between Janow and Chorzellen, and advanced towards Ortelsberg, driving in a force of Uhlans and smashing a battery. The next day they were met by a force of Villenberg, which partially outflanked us. Desperate fighting ensued, the Germans suffering terrible losses: but they had an object to effect--to hold the Russians until reinforcements arrived. These were run down rapidly from Koenigsberg and the Russians outnumbered and forced back. The fight was lost because the Germans had a network of railways behind them, while the nearest Russian line was 45 versts away. These facts require no comment. A Russian railway at Chorzellen would have saved the day, and led to the investment and probable fall of Koenigsberg. It would have made the occupancy of Tilsit and Memel permanent, and would almost certainly have changed the results of the campaign in this region.