It was our intention, as our title announces, to have passed rapidly on, and glanced at the history, uses, and national importance of coal, and some of the most valuable of the other mineral substances, as well as to have pointed out in a short series of remarks, some of the advantages to be derived from the cultivation and pursuit of mineralogical and geological inquiries in connection with this subject; but we have loitered on the way, and the contracting limits of our paper admonish us to hasten to a close. We may at another time, if leisure permit, and if on reflection, we deem our endeavors at all likely to attract attention to subjects which have too long been almost universally neglected, again resume, after our own fashion, a subject which under better management, could not fail to prove interesting as well as instructive. GAMMA. _Henrico, April 28th, 1835_. For the Southern Literary Messenger. LETTERS FROM A SISTER. LETTER ELEVENTH. Malmaison, Tomb of the Ex-Empress Josephine--Engine for Conveying Water to Versailles and St. Cloud--St. Germain en Laye--Nanterre--St. Geneviéve. PARIS, ----. _Dear Jane:_ Although quite fatigued, I cannot retire to rest ere I have rendered my dear sister an account of to-day's excursion to St. Germain and to Malmaison the favorite residence of the late Ex-Empress Josephine. We took an early breakfast, and sat off by ten o'clock; the Danvilles in their carriage, accompanied by Sigismund, and we in a remise, or, as it is termed in England, a glass coach. We soon alighted at Malmaison, it being only two leagues from Paris, and spent more than an hour in walking over the house and grounds, and thinking of poor Josephine. A great deal of the furniture yet remains as she left it; even her music books are kept as she arranged them. The room she occupied as her chamber, is exceedingly beautiful. It is circular, lined with cloth of crimson and gold, and surrounded by mirrors inserted in the walls and doors. The bed is supported by golden swans, and the coverlid and curtains are of silver lama. In the library we saw the writing table and inkstand of Napoleon. The first bears evident marks of his penknife; which, while meditating, he used to strike into the wood. The domestic who conducted us through the apartments, spoke of the Ex-Empress with great affection; and so did the gardener, a West India negro, whose ebony visage was a novel spectacle to us. They said she was beloved by all the household and neighborhood, for her affability and kindness. The green house is filled with gay and choice flowers and shrubs; and it is melancholy to reflect that these the frailest productions of nature, have outlived their lovely mistress, and still blossom and flourish and shed their fragrance around, while she, like a shadow has passed away! After following awhile the windings of a stream that meanders through the garden, we found ourselves at the threshold of a pretty little temple dedicated to Cupid. The