(Section II. Part I.) A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M. 605. Cantharis.—Cantharides. 606. Coccus.—Cochineal. 607. Blatta.—Cockroach. 608. Hirudo.—Leech. Book Navigation ‹ 604. Helianthus annuus.—Sunflower. up 605. Cantharis.—Cantharides. ›