Photographs of deteriorated biological specimen slides from 1919.

Fennel Seed

Fennel Seed

Pond Lily Root

Pond Lily Root

Aconite

Aconite

Althaea Root

Althaea Root

Althaea Leaf

Althaea Leaf

Arnica Leaf

Arnica Leaf

Belladonna Root

Belladonna Root

Belladonna Root (2)

Belladonna Root (2)

Calumba

Calumba

Cannabis Herb

Cannabis Herb

Cinchona Bark

Cinchona Bark

Cinnamon Bark

Cinnamon Bark

Convallaria

Convallaria

Corn Starch

Corn Starch

Gentian Root

Gentian Root

Gentian

Gentian

Hydrastis

Hydrastis

Ipecac

Ipecac

Licorice

Licorice

Lobelia Seed

Lobelia Seed