meetings of tlio German Pioneer Society.The Rnikes C. lebration—Jubilee Singer*.An additional feature of interest at the Robert Raikes 8abbath-scliool Centennial Celebration, in Music Hall, to-morrow morning, will be singing b3r the Fisk Jubilee Singing Troupe. The committee have labored faithfully to arrange for a celebration worthy of the occasion, and everything now indicates perfect succoss. The day will be emphatically a children’s day.