Stampede of Slaves.--The Washington Star, of the 25th ult., says:
On Saturday a number of slaves belonging to various citizens of the District, obtained a covered wagon, under the pretence of going to the camp meeting in the adjoining county. They departed, but have not returned, and their owners have reason to believe that they have emigrated by the underground railroad. Some fifteen slaves are missing, most of them belonging in this city and county. Among the losers are Messrs. Linton, Randolph Harbaugh and Isaac Scraggs. Officers have been in search of the fugitives, but up to this time none have been recovered.
"Stampede of Slaves," New Orleans (LA) Times-Picayune, September 2, 1857, p. 4