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132 Pup. Every speck of nature seems to have its inhabitants * - Tut. It certainly has, and we cannot doubt but that animals or animalcules, still smaller than those included in the last order, have their existence in situatious that no human eye, even assisted by the microscope, can penetrate. Pup. Of all the worms that have been specified, snails with their shells on their backs have loost attracted my attention, and I have often woudered how they build their habitations, which they carry about with thein. Tut Their carrying their own habitations with them is somewhat singular: I am not surprised that your inquisitive eye should have noticed it. Every animal in nature has its habitation. The roof under which the smail resides has two properties, which appear difficult to be united, solidjs y and ligutnes»; without which its inhabitant could neither be protected from injury, nor transfer its habitation from place to place. At the approach of winter, she retires into some cavity ; and her body distils a certain glutinous matter, which closes up the aperture of the shell. Thus shrouded up, she passes the cold season in safety. When the spring season commences, she opens her door, and ranges at her pleasure. Pup. I think 1 remember hearing something remarkable concerning the eyes of snails. Tut. Probably you may, for they are uncommonly curious and singular. As they creep upon the ground, and have the weight of their apartment upon them, if their eyes were not somewhat elevated, they could not