Under pressure of this defeat the enemy also is weakened in his communication. Between Grodek and the Dniester marshes the enemy is hard pressed by Austro-Hungarian troops. Between the Dniester marshes and the mouth of the River Stry the enemy has evacuated the southern bank of the Dniester. KAISER WILHELM AT THE FRONT. _BERLIN, (via London,) June 21._--Emperor William, it was announced officially by the German War Department today, was present at the battle of Beskid for possession of the Grodek line. These Russian positions are to the west of Lemberg, the Galician capital. The rapidity of the Austro-German success excites astonishment here. It was believed that the Russians would be able to check the allies' advance for some days on the Grodek line; hence the bulletins issued today recorded results far exceeding the expectations of the most optimistic observers. Special dispatches from the front describe the Russian retreat from Grodek and the Russian resistance from the Tanew River to the mouth of the Wereszyca. Air scouts report that the Russians have fallen back upon their last line of defenses protecting Lemberg, which is nine miles west of the city limits. The situation at Lemberg is evidently precarious, as General von Mackensen today seized the railway between Lemberg and Rawa Ruska, which is the main line of travel northward. This, it is considered, gives the Russians the alternative of preparing for speedy evacuation or of trying to hold the city, with the risk of being enveloped by von Mackensen's army sweeping around southeastward and forming a junction with General Linsingen's forces. Grand Duke Nicholas, the Russian Commander in Chief, apparently has begun to realize the threatening dangers, for he has ordered the withdrawal of all Russian forces from the south bank of the Dniester. Military opinion here is that he cannot extricate his huge armies without heavy losses in men and material. FALL OF LEMBERG. _BERLIN, June 23, (by Wireless Telegraphy to Sayville, N.Y.)_--Lemberg has been conquered after a very severe battle, according to an official report received here from the headquarters of the Austro-Hungarian Army. The Galician capital fell before the advance of the Second Army. The news that Lemberg has been carried by Austrian and Hungarian troops is received today with great jubilation in Berlin. Throngs of people crowd the public squares and the parks, flags are displayed from windows, and bands are playing patriotic airs. Extra editions of the newspapers are being shouted on the streets, and the church bells are ringing. Everybody seems to feel that another great step in the direction of final victory has been gained.