MEMORY, IMAGINATION, OLD SENTIMENTS AND ASSOCIATIONS, ARE MORE READILY REACHED THROUGH THE SENSE OF SMELL THAN BY ALMOST ANY OTHER CHANNEL. Of course the particular odors which act upon each person's susceptibilities differ.--O, yes! I will tell you some of mine. The smell of PHOSPHORUS is one of them. During a year or two of adolescence I used to be dabbling in chemistry a good deal, and as about that time I had my little aspirations and passions like another, some of these things got mixed up with each other: orange-colored fumes of nitrous acid, and visions as bright and transient; reddening litmus-paper, and blushing cheeks;--eheu! "Soles occidere et redire possunt," but there is no reagent that will redden the faded roses of eighteen hundred and--spare them! But, as I was saying, phosphorus fires this train of associations in an instant; its luminous vapors with their penetrating odor throw me into a trance; it comes to me in a double sense "trailing clouds of glory." Only the confounded Vienna matches, ohne phosphor-geruch, have worn my sensibilities a little. Then there is the MARIGOLD. When I was of smallest dimensions, and wont to ride impacted between the knees of fond parental pair, we would sometimes cross the bridge to the next village-town and stop opposite a low, brown, "gambrel-roofed" cottage. Out of it would come one Sally, sister of its swarthy tenant, swarthy herself, shady-lipped, sad-voiced, and, bending over her flower-bed, would gather a "posy," as she called it, for the little boy. Sally lies in the churchyard with a slab of blue slate at her head, lichen- crusted, and leaning a little within the last few years. Cottage, garden-beds, posies, grenadier-like rows of seedling onions, --stateliest of vegetables,--all are gone, but the breath of a marigold brings them all back to me. Perhaps the herb EVERLASTING, the fragrant immortelle of our autumn fields, has the most suggestive odor to me of all those that set me dreaming. I can hardly describe the strange thoughts and emotions that come to me as I inhale the aroma of its pale, dry, rustling flowers. A something it has of sepulchral spicery, as if it had been brought from the core of some great pyramid, where it had lain on the breast of a mummied Pharaoh. Something, too, of immortality in the sad, faint sweetness lingering so long in its lifeless petals. Yet this does not tell why it fills my eyes with tears and carries me in blissful thought to the banks of asphodel that border the River of Life.