588. Enumeration of the Active Principles contained in the _Menispermum Cocculus_, 451 589. Picrotoxin; its Chemical Reactions and Properties, 451, 452 590. Fatal Dose, 452 591. Effects on Animals, 452, 453 592. Effects on Man, 453 593. Physiological Action, 453 594. Separation from Organic Matters, 453, 454 III. THE POISON OF _ILLICIUM RELIGIOSUM_. 595. Dr. Langaard’s Researches, 454 IV. PICRIC ACID AND PICRATES. 596. Properties of Picric Acid, 454 597. Effects of Picric Acid, 454, 455 598. Tests, 455 V. CICUTOXIN. 599. Description of the _Cicuta Virosa_, 456 600. Effects on Animals, 456 601. Effects on Man, 456, 457 602. Separation of Cicutoxin from the Body, 457 VI. _ÆTHUSA CYNAPIUM_ (FOOL’S PARSLEY). 603. Dr. Harley’s Experiments, 457 VII. _ŒNANTHE CROCATA._ 604. The Water Hemlock--Description of the Plant--Cases of Poisoning, 457, 458 605. Effects of the Water Hemlock, as shown by the Plymouth Cases, 458 606. _Post-mortem_ Appearances, 459 VIII. OIL OF SAVIN. 607. Effects and Properties of Savin Oil, 459 608. _Post-mortem_ Appearances, 460 609. Separation and Identification, 460 IX. CROTON OIL. 610. Chemical Properties of Croton Oil, 461 611. Dose--Effects--Illustrative Cases, 461 612. _Post-mortem_ Appearances, 461 613. Chemical Analysis, 462 X. THE TOXALBUMINS OF CASTOR OIL SEEDS AND ABRUS. 614. The Toxalbumin of Castor Oil Seeds, 462 615. Toxalbumin of Abrus, 462, 463 XI. ICTROGEN. 616. Ictrogen, 463 XII. COTTON SEEDS. 617. Cotton Seeds as a Poison, 464 XIII. _LATHYRUS SATIVUS._ 618. Poisonous Qualities of Vetchlings, 464, 465 XIV. ARUM--LOCUST-TREE--BRYONY--MALE FERN.