The main body of the Bavarian Corps had meanwhile moved southward, and during its advance on Fontenay aux Roses, about nine o'clock, it came under a hot fire from the height, as well as a flanking fire from a redoubt near Hautes Bruyeres. Being informed of the situation at the scene of conflict on the plateau of Bicetre, General von Hartmann (the Corps Commander) at once sent thither an artillery reinforcement, and ordered the 5th Brigade to attempt a junction to his left by way of Malabry. As soon as this brigade had deployed under a hot Chassepot and artillery fire between Pave blanc and Malabry, General von Walther (commanding 3rd Bavarian Division) passed to the attack of Plessis-Piquet. The artillery advanced to a short distance on the hither side of the park wall, and then the infantry broke out from the wood of Verrieres, and, after a brief but sharp struggle, took possession of the mill lying to the southward. After half an hour's artillery preparation, the Bavarians advanced on Hachette by rushes, and broke into the park of Plessis. The French kept up a hot fire from the redoubt of Moulin de la Tour on the localities wrenched from them, by which the Bavarian field batteries suffered severely; but they still effectively supported the further advance of the infantry, who now got close in under the earthworks. However, the defenders were already on the point of retiring, and when about three o'clock one Bavarian company entered, it found the place deserted and the guns left in position. Caussade's Division had left Clamart and was on the way to Paris; Maussion's had abandoned the heights of Bagneux on the pretence of having received mistaken orders, and Hughes' Division was with difficulty brought to a halt under cover of Fort Montrouge. The Bavarian Corps now took up the position it had won on the plateau of Bicetre to the right of the Vth Corps. The fight had cost the former 265 men and the latter 178; the French lost 661 killed and above 300 prisoners. The condition in which the French XIVth Corps returned to Paris caused such dismay that General Trochu found himself obliged to withdraw a Division of the XIIIth from Vincennes for the defence of the enceinte. It was subsequently argued that it would have been possible to capture one of the forts on this day by forcing an entrance along with the fugitive enemy, with the result of materially shortening the siege. But the forts did not need to open their gates to shelter fugitives, to whom those of the capital stood open. The escalade of masonry escarpments eighteen feet high can never be successful without much preparation. Ventures of this character are rarely ordered by superior authority; but can be attempted only in a propitious moment by those on the spot. In this case probable failure would have endangered the important success of the day.