The Free Colored population, included in the above, numbers 419,173; of whom 184,882 are in the Free States, and 234,291 in the Slave States. Maryland has the highest number, 73,943. They have increased during the last ten years only 32,880, or 7.84 per cent. At the six previous enumerations respectively, there were returned 40,370, 35,946, 27,505, 18,148, 3553, and 1129 slaves from the Free States. The published abstract of the recent census shows only 119, all in New Jersey. The population, and the increase since 1840, are made up of the following elements; the total population of the territories not included in the census of 1840 being considered as increase: _Free States:_ Free Inhabitants 13,646,152 Slaves 119--13,646,271 _Slave Slates:_ Free Inhabitants 6,441,757 Slaves 3,179,470-- 9,621,227 ---------- Total Population 23,267,498 _Free States:_ Increase of free Inhab. 3,937,362 Less decrease of Slaves 1,010-- 3,926,352 _Slave States:_ Increase of free Inhab. 1,584,549 Increase of Slaves 693,244-- 2,277,793 ---------- Total Increase 6,204,145 At the last apportionment, the House of Representatives consisted of 223 members, of whom 135 were from the Free States, and 88 from the Slave States; a Free State majority of 47. By the next apportionment there will be 233 members, of whom 144 will be from the Free States, and 89 from the Slave States; a Free State majority of 55: being an increase of 8 above that at the previous apportionment. The projected invasion of Cuba has entirely miscarried. The bands of adventurers who had been collected at various points have dispersed, none of them having succeeded in getting away from the United States. At Jacksonville, Florida, where some hundreds were at different times congregated, many were indebted to charity for the means of returning to their homes. A number of persons have been arrested on charge of participation in the proposed expedition.