In the grounds of the Natural History Museum, South Kensington, a magnificent tree fossil of the carboniferous era has just been pieced together. It was taken from the Craigleith Quarries, near Edinburgh, where it was discovered in 1854, and the part rescued is 36 feet in length, measuring in girth 13 feet at the base and 11 feet at the top. It is allied to the Arauca-rias, and peculiarities of condition lead to the inference, that these great trees were'drifted into the sand, which subsequently became compacted into stone. - Gardeners' Chronicle.