. The Conchologists' exchange. Mollusks. 110 THE NAUTILUS. rocky wall of the mountains, making beautiful little cascades. The first of these, beginning next the plain, appears to come out of the rocks high up, flows through a small canon between the cliffs, and shortly afterward disappears in the loose talus below. Earlier in the year these loose, talus rocks are wet with melted snow, but at the time of collecting, in July, they were hot and dry. On the talus below the first fall, shells were found abundantly. On the talus of the ravine, a few feet to the west, only a few were found, while sti
. The Conchologists' exchange. Mollusks. 110 THE NAUTILUS. rocky wall of the mountains, making beautiful little cascades. The first of these, beginning next the plain, appears to come out of the rocks high up, flows through a small canon between the cliffs, and shortly afterward disappears in the loose talus below. Earlier in the year these loose, talus rocks are wet with melted snow, but at the time of collecting, in July, they were hot and dry. On the talus below the first fall, shells were found abundantly. On the talus of the ravine, a few feet to the west, only a few were found, while still further west none whatever could be found any- where. This little stream from the mountain, therefore, seems to mark its distribution on the mountain towards the west. Acting on this basis, the rocks were followed upward along the sides of the. mountain, following the little gully of the stream mentioned. Shells were found as high as we went, a distance of 1,500 feet, or up to a total elevation of 5,000 feet above the sea. Time did not permit a search higher. The limit of distribution of the shells, as mentioned, ends abruptly. A search eastward from the mountain stream caused the discovery of shells in abundance for a mile; beyond this we did not go. There is a great deal of difficult mountain climbing necessary to explore these regions, and a half day does not permit one to go far. But from the fact that they have been found on the slopes of Mt. Mc- Donald, across the lake to the south, it would appear evident that the unexplored canons and mountain sides forming the large amphithea- ter supplying the lake's waters, support the Pyramidulas. The writer has been in different places in the Mission range, from one end to the other, on the western slopes, and nowhere else have. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmollusks, bookyear188
