An essay on classification
1859
viii, 381 p. ; 22 cm "The contents of this volume appeared for the first time [1857] as an introduction to a larger work now in course of publication, under the title of Contributions to the natural history of the United States."--Pref
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An essay on classification
An essay on classification
Internet Archive · Scanned pages
An essay on classification
An essay on classification
Internet Archive (Scan) · 426 pages
An Essay on Classification by Louis Agassiz
An Essay on Classification by Louis Agassiz
Internet Archive (Scan) · 423 pages
