https://www.researchgate.net/figure/The-Lloyd-Brothers-Pharmacy-was-a-major-producer-of-herbal-products-for-doctors-from-the_fig2_303860647
MEDICINAL PLANTS IN AMERICAN HISTORY – UNDER CONSTRUCTION
https://www.researchgate.net/figure/The-Lloyd-Brothers-Pharmacy-was-a-major-producer-of-herbal-products-for-doctors-from-the_fig2_303860647