All Items 1 Collection 1 Archives & Special Collections 1 Contributor 1 Hitchcock, Orra White, 1796-1863 1 Topic 3 Bacteria 1 Identification 1 Invertebrates 1 Format 1 Pen and ink on linen 1 Part Of 1 Orra White Hitchcock Classroom Drawings 1 Genre 1 Scientific illustrations 1 Subject 2 Bacteria – Identification 1 Invertebrates – Identification 1 Orra White Hitchcock drawing of fourteen invertebrate organisms Hitchcock, Orra White, 1796-1863 One of 61 drawings done by Orra White Hitchcock for use in Professor Edward Hitchcock's classes on geology and natural history. Orra White Hitchcock drawing of fourteen invertebrate organisms