"DARKIE-DOM" IN CANADA.—In a letter written from Detroit apparently by a lady, to the Boston Saturday Evening Gazette, we find the following:

  "Windsor, which is directly opposite from Detroit, joins Sandwich. It is the commencement of the Great Western Railroad and the rendezvous of darkiedom. The place is redolent with their misery, their unfitness to take care of themselves. If the hundreds congregated there and at Chatham, that abomination of civilization, are the result of negro freedom, I never desire to see another negro freed. I took a little wench of fifteen myself from there, some six months ago, as nursery maid. Her mother had the impudence to represent herself to me as the veritable Eliza Harris, of Uncle Tom celebrity. The grin of irrepressible delight with which she consigned her child to us, entire strangers, and beheld the train start which was to put some hundred miles between them seemed to me a gentle libel on those tortuous partings in Uncle Tom, over which have been rained such copious showers of sentiment. The girl was given away, the same authority to be exercised over her, as though it had been a moneyed transaction South. And the result; from the nursery even now there comes a soft lullaby, and if you were to look therein, you would see a small white face in close juxtaposition to that black cheek little clinging arms are ever round her neck, loving voices in her ear. Half starved, scantily dressed, and ignorant she came to us. When we look now upon our sable Lillie, smiling and happy, we smile involuntarily at the furor of sympathy which Mrs. Stowe's first book awoke in our hearts.