875. Poisonous and Non-Poisonous Salts of Iron, 665 876. Ferric Chloride--Pharmaceutical Preparations of Ferric Chloride, 666 877. Effects of Ferric Chloride on Animals, 666 878. Effects on Man--Criminal Case at Martinique, 666, 667 879. Elimination of Ferric Chloride, 667, 668 880. _Post-mortem_ Appearances, 668 881. Ferrous Sulphate, 668, 669 882. Search for Iron Salts in the Contents of the Stomach, 669, 670 2. _Chromium._ 883. Neutral Chromate of Potash, 670 884. Potassic Bichromate, 670 885. Neutral Lead Chromate, 670, 671 886. Use in the Arts, 671 887. Effects of some of the Chromium Compounds on Animal Life, 671 888. Effects of some of the Chromium Compounds on Man--Bichromate Disease, 671, 672 889. Acute Poisoning by the Chromates--Illustrative Cases, 672, 673 890. Lethal Effects of Chromate of Lead, 673 891. _Post-mortem_ Appearances, 674 892. Detection of the Chromates and Separation of the Salts of Chromium from the Contents of the Stomach, 674, 675 3. _Thallium._ 893. Discovery of Thallium--Its Properties, 675, 676 894. Effects of Thallium Salts, 676 895. Separation of Thallium from Organic Fluids or Tissues, 676 4. _Aluminium._ 896. Aluminium and its Salts, 676, 677 897. Action of Alum Salts--Siem’s Researches--Alum Baking-Powders, 677, 678 898. _Post-mortem_ Appearances, 678 899. Detection of Alumina, 678, 679 5. _Uranium._ 900. Poisonous Properties of Uranium Salts, 679 901. Detection and Estimation of Uranium, 679 V. ALKALINE EARTHS. BARIUM.