619. Arum Maculatum, 465 620. The Black Bryony, 465 621. The Locust Tree, 465 622. Male Fern 465, 466 PART VII.--POISONS DERIVED FROM LIVING OR DEAD ANIMAL SUBSTANCES. DIVISION I.--POISONS SECRETED BY LIVING ANIMALS. I. POISONOUS AMPHIBIA. 623. Poisonous Properties of the Skin of the _Salamandra Maculosa_ --Salamandrine, &c., 467 624. Poison from the Toad, 468 II. THE POISON OF THE SCORPION. 625. Various Species of Scorpions--Effects of the Scorpion Poison, 468 III. POISONOUS FISH. 626. Poisonous Fish--Illustrative Cases, 468-470 IV. POISONOUS SPIDERS AND INSECTS. 627. The Bite of the Tarantula--The Bite of the _Latrodectus Malmignatus_, 470 628. Effects of the Bite of the Katipo, 471 629. Ants, &c., 471 630. The Poison of Wasps, Bees, and Hornets, 471 631. Cantharides, 471 632. Cantharidin, 471, 472 633. Pharmaceutical Preparations of Cantharides, 472 634. Fatal Dose, 472 635. Effects on Animals--Radecki’s Experiments--Effects on Man-- Heinrich’s Auto-Experiments, 472, 473 636. General Symptoms Produced by Cantharides, 473, 474 637. _Post-mortem_ Appearances, 474 638. Tests for Cantharidin--Distribution in the Body--Dragendorff’s Process, 475-477 V. SNAKE POISON. 639. Classes of Poisonous Snakes, 477 640. The Poison of the Cobra, 478 641. Fatal Dose of Cobra Poison, 479 642. Effects on Animals, 479 643. Effects on Man, 479, 480 644. Antidotes and Treatment--Halford’s Treatment by Ammonia-- Permanganate of Potash, 480, 481 645. Detection of the Cobra Venom, 482 646. Effects of the Bite of the _Duboia Russellii_, or Russell’s Viper, 483 647. The Poison of the Common Viper--The Venom of Naja Haje (Cleopatra’s Asp), 483, 484 DIVISION II.--PTOMAINES--TOXINES. 648. Definition of a Ptomaine, 485