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Sillimans. Vol V. p. 103 Sus americana of Harlan is the Harlanus americanus of Owen is a Tapiroid Pachyderms. Gives a similar Pachyderm.

[John L. Leconte. 1847. Notice of five new species of fossil mammalia from Illinois. American journal of science and arts, series 2, vol. 5: 102-106.]

vol v. p. 182 M. Verneuil shows that in U.S. from Ripple marks & Fucoids, that it is "incontestible that the whole mass of the Palæozoic formation has been deposited in a shallow sea.

[Edouard P. de Verneuil. 1848. On the parallelism of the Palæozoic deposits of North American, etc. American journal of science and arts, series 2, vol. 5: 176-183.]

p. 295. Lake Baikal only fresh water in world with Phocæ. Sir George Simpson Narrative

[Bibliography: Jameson's Journal. July 1847, from Narrative of a journey round the world. Sir George Simpson, vol. ii: 381]

N.B. My theory good from Geology for these Geologs wd only compare forms from two deposits, & see how like & disregard vague question whether specifically distinct. Resemblance of more weight that numerical enumeration. In recent Forms, it wd add to perplexity what to name, ultimately perhaps only Genera.

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Vol V. n.s. p. 361 De Verneuil speaking of the Lower stage of Silurian system of U.S says "The great proportional number of the Trilobites gives us an idea of the considerable development already made by this family, & wh. corresponds to what is observed in Europe."

p 362 speaks of the Trilobites, orthoceratites & the Brachiopods by their variety of forms. All this argument for a precursor period.

[Edouard P. de Verneuil. 1848. On the parallelism of the Palæozoic deposits of North American, etc. American journal of science and arts, series 2, vol. 5: 359-370.]

Vol VI. n.s. Hale on the Geolog of S. Alabama, an Eocene Edentate quadruped

[C. S. Hale. 1848. Geolog of South Alabama. American journal of science and arts, series 2, vol. 6: 354-363.]

Vol VI. p 433. M. Edwards in Annales des Sciences 3 S. Zoolog Tom I. p 65. in 1844 first put forth idea of all importance of embryology to classification, but was forestalled by Dr. Marten Barry in 1837 Edinbg. New Phil. Journal. Jan &. April [illeg] Von Baer 1828