It is the simple faet to say that the tnost effoctive bit of stage realism ever seen in this city wan presentad in the Grand Opera House during the great race at "The Oouuty Fair," in whicïi the noble honse, Cold Mohlasses, came in firsit by a nose, thus „winning the money with which to pay ofi the mortgnge on Abigail Prae's farm. Of couree it was the result of ingenious ïnochanism and all that, but to see three live horses mounted by three ïegular jockeys racdng at breakneck Speed (upon the stage before your eyes, and lbo witnrss iht gradual gain by ome of them until the vace ends with one of the closest and most exciting fininhes ever Heen anywhere, is a sight to be remembered, and so real was it bil that the audience, which packed the house, vae worked up to a pitch Oí withusdasm as graat as ever seen upon a race course. The play in its entirety was admirtibly presented, the company being o. most excellent one, and the scenery esipecially Rock Bottom farm, in the second act, handsome and a marvel tyf -detail. Fanny Denham Rouse, as tVbigail Prue, won the hearte of the audience before Khe had been on the etage two minutes, for her impersonition of the character wa a charmt'ng piece of acting throughout. Her fiupport was very good. Enough has been writU-n alout "Tlie Oounty Fair" tofill a book, and it is,only necessary to say here, that as produced in the Grand Opera House it is one of ithe best theatru-al attractions presented 5n this city during the Beason. - Brooklyn Standard-Union. At the grand opera house Fridny cvening, May Gth.