Topeka, Kan., Fob. 13. - An organization of ex-slaves has been effected here by colored uien for the purpose of making a dcmand on congress for pensions. It is the purpose to make this movement of national scope. Therc aro possibly 1,500 ex-slaves here. They will ask that all over 70 years of age shall get 4700 in cash and $15 per month thercafter. All over 60, S5U0 in cash and $13 per month; all over 6 at the time of tho emancipation, Í300 and $5 per month; all over 1 year at the time of emancipation, $100 cash, and $1 a month.