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<p><span style="color: rgb(33, 37, 41); font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; letter-spacing: 0.7px; text-align: justify;"> with remarks on the affinities of some forms; and thirdly, a description of the present distribution, and the geological range.The illustrations are employed mainly for the purpose of explaining structure and terminology, and will not enable the student to dispense with the use of specimens. The list of paleontological works is intended to indicate where further information may be obtained in any branch of the subject; it includes works of general interest in each group.</span><br></p>
