Fifth book of lessons for the use of schools . e-rous class of fossils: they are found in all formations,from the lowest stratum in which animal remains havebeen seen, to the most recent deposits now in a person who has made Conchology a special objectof study, there appear many striking differences be-tween those found in a fossil state, and such as nowexist in our seas, lakes, and rivers; but were we todescribe, or give representations, of even remarkablefossil shells, a general reader would discover, in most ofthem, nothing so peculiar as to arrest his is, howeve
Fifth book of lessons for the use of schools . e-rous class of fossils: they are found in all formations,from the lowest stratum in which animal remains havebeen seen, to the most recent deposits now in a person who has made Conchology a special objectof study, there appear many striking differences be-tween those found in a fossil state, and such as nowexist in our seas, lakes, and rivers; but were we todescribe, or give representations, of even remarkablefossil shells, a general reader would discover, in most ofthem, nothing so peculiar as to arrest his is, however, one, which is so different from anything now living, and of such common occurrence, thatwe are induced to give it as a good example of anextinct genus. It is called the Ammonite, or ComuAmmonis, that is, Horn of Amnion, from its resem-blance to those horns which are affixed to the head ofthe statues of Jupiter Ammon. MINERAL KINGDOM. 73 Here is a representation of the exterior of one ofthe numerous species, of which this genus is These shells are found of all sizes, from that of a fewlines to nearly four feet in diameter; and above threehundred different species are said to have been ob-served. The diagram here given represents the two sides ofa species of crustaceous marine animal, which haa
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishermontrealjohnlovell
