有声读物: Elements of Conchology

The fifth of the Series of First Books of Natural History, embraces that branch of our subject which treats of the Mollusca, or soft animals, and consequently, includes the Elements of Conchology. In the beauty and singularity of their forms, the variety and brilliancy of their colors, shells only yield to flowers…. Limited as this little volume is, it may prove a key to stores of information, even more interesting to many than the numerous fictions of the day. “Truth is stranger than fiction,” has been often said; and the beautiful truths brought to us by a study of animal life, in its various forms, are certainly more admirable and wonderful than any fiction of man’s creation. - Summary by William Ruschenberger