Lessons on shells, London, R.B. Seeley, W. Burnside, 1838, This illustration features a series of intricate shell designs, showcasing various types of mollusks. Each shell is labeled with numbers corresponding to detailed annotations, offering insights into the unique structural characteristics and forms. The collection includes a diverse array of shapes, from elongated spirals to flatter, more rounded forms, highlighting the beauty and complexity of marine life. The arrangement emphasizes the aesthetic variety found in natural shell formations, illustrating both symmetry and organic intricacy.