Watercolor painting, American 16 Watercolor painting 12 Drawing, American 5 Watercolors--19th century 5 Painting, Modern 4 History 3 Painters 3 more ... Technique 3 Architecture 2 Artists 2 Drawing 2 Exhibitions 2 French 2 Historical Scenes--Philadelphia--Watercolors 2 Aquarelle américaine 1 Architecture--Pennsylvania--Philadelphia--History 1 Art and Artists--18th century 1 Art and Artists--19th century 1 Art and artists--20th century 1 Art and artists--Pennsylvania--Philadelphia 1 Autograph verse 1 Botanical illustration 1 Catalogs 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Chinese American artists 1 Chinese language 1 Drawings--19th century 1 Elections 1 Employees 1 Engraving--19th century 1 Fleurs dans l'art 1 Flowers in art 1 Fourth of July celebrations 1 Genre 1 History paintings 1 Illustration botanique 1 India ink 1 Ink 1 Ink painting, Chinese 1 Justice, Administration of--China--19th century 1 less ...