Washington June 20th-; :A dispatch from Head quartets of. the \ .nrniT of the Potomac June ISth say a: ,f^ J i‘•There was very hear)7 fighting yosier- jday rdor.g the greater part of the .line. 1 ,J ' u_* A ^ 4i ha most determined effons were made to ! ; break the enenVyhy h'tios, But iit’U9 ground however was gained except on j-. the left, j;Birneys d Ivin on of the 2d corps oeen- j. pied a Ii.no within. 2,500 yards of the | city of Petersburg. A few shells werethrown into the city.' jn ’ • iThe dispatches -froip Berrairdas Head-! quarters June 18th via Baltimore Junei 20th skates, tb-at our losses-in'two.days |before- Petersburg, were 8.000 'killed-, and |' iwounded. Thrvfthe eneinv. on-the 18th• •r » . , • , rcaptured one entire divison . from Burn -■ sido.The rebels at Petersburg have recieved**% \ * ' . \ 'S.OOOgeinforcemenU. Butler.'is'‘report ' ed to have been turprised .by Lee, ’and was driven back to his- in trench merits rriih ‘heavy loss, : The report* snv we.are•r ■ 3 K *in ft'position lolshMl'Petersburg. :Tf we *, , s ' ' • / arc why don’t, we-do it ? ; ,■ 1. Gold in Mew York 108. . • : ....■ ii3.1.