UNCLE TOM'S CABIN—This week, the 80,000th copy of Uncle Tom's Cabin will be published, 70,000 already have been sold.—Thus in the space of a little over two months, will 100,000 volumes of the story have circulated almost like the air of Heaven, in and through the social circles of the Free States. The popular mind is ready for it, as is proved by its unprecedented sale. Its effect must be also immense, founded as it is upon truths, and admirably, because naturally adapted to the comprehension of all. Its publication and rapid sales are among the very promising signs of our times. This book will do its work.—Essex Co. Freeman.