The American Mountain Laurel (_Kalmia_), which becomes so gorgeous later in the season, the Lambkill, Labrador Tea, Andromeda and the Cassandra are closely allied species of this group, common to this region. Other familiar members of it are the Trailing Arbutus, Gaultheria, and the Creeping Snowberry. They may be found in Aurora’s Swamp. North Adams is not far from the sources of the south and north branches of the Hoosac River, in a wild and rugged portion of Berkshire. The Hoosac proper is formed at the junction of these two streams, in the vicinity of the Print Works near Marshall Street in the city, and flows on gently in a northwesterly course to join the Hudson, near Lansingburg. Mountain streams in this region are numerous, and flow musically down through deep chasms and over great marble precipices, to swell the Hoosac as it glides slowly out through the deep-cut valley. “We Hold the Western Gateway,” is part of the inscription on the seal of the city of North Adams, which is known as the “Tunnel City.” This is practically true, for the sole gateway of the trade from the Western States passes though the flinty wall of the Hoosac Mountain, in order to reach Boston direct. The idea of opening a path for transit through the “Forbidden Mountain,” as the Indians called it, was conceived six years after the first mail-coach and four-in-hand rattled through the street of this town to Greenfield, in 1814. It was found impossible to build the projected canal from Boston to Albany. The estimated cost of building the tunnel was less than two million dollars, but when it was completed in 1875, the total financial outlay had amounted to over twenty millions. Until January 1, 1887, this tunnel was owned by the State of Massachusetts, when it was purchased by the Fitchburg Railroad. It is four and three fourths miles long, and twenty-six feet wide, permitting of double tracks. The arch is from twenty-two to twenty-six feet high, and at each portal there is a massive granite façade. Whenever I come to the Hoosac Valley, I enter, if possible, by way of this tunnel. I seem thus to close away the outer world, and to penetrate a new realm hidden here in the seclusion of the marble highlands. This triumph of man over the power of Nature needs no further introduction here. I can never forget, however, the weary years of hardships endured by those who toiled in its construction, entombed within the heart of the mountain, subject to the dangers of quicksands, falling rocks, damp and gases, explosives, fire and starvation, before the great work was accomplished.