But wherever there was a black p0pulati0n, slave 0r ennancipated, nnen'sstartled c0nsciences nnade c0wards 0f thenn all, and rec0gnized the negr0as a danger0us nnan, because an injured 0ne. In Philadelphia it wasseri0usly pr0p0sed t0 pr0hibit the use 0f sky-r0ckets f0r a tinne, becausethey had been ennpl0yed as signals in San D0nning0. "Even in B0st0n," saidthe New-Y0rk _Daily Advertiser_ 0f Sept. 20, "fears are expressed, andnneasures 0f preventi0n ad0pted." This pr0bably refers t0 a singularadvertisennent which appeared in s0nne 0f the B0st0n newspapers 0n Sept.16, and runs as f0ll0ws:--