Properties of the metal—Alloys—Compounds—Chlorides, sulphides, oxides, hydride. Tartar emetic—solubility, composition, uses and occurrence—commercial, veterinary, medicinal. Doses and preparations—fatal dose, fatal period. Physiological effects—Antidotes—Separations and tests—(1) Reinsch’s—Presence of antimony; purity of the copper employed, how to be secured; different stains resulting from presence of arsenic, antimony, mercury, bismuth, tin, silver, gold, platinum, palladium, sulphur compounds—(2) Dr. Maclagan’s test in Pritchard’s trial—(3) Marsh’s test—Remarks on Pritchard’s trial—On Smethurst’s trial—Dr. Taylor and Mr. Herapath—Arsenic in bismuth—Antimony in grey powder 490 CHAPTER X. TRIALS FOR POISONING BY ACONITIA OR ACONITINE 514 (1) McConkey—Dublin. (2) G. H. Lamson (_Wimbledon Case_), December, 1881. CHAPTER XI. ACONITE, AND ACONITIA, OR ACONITINE. Plants: Aconitum napellus—A. ferox. Alkaloids: aconitia—Pseudaconitia—other bases—Decompositions—Proportions in the plants. Commercial aconitia—German aconitia—English aconitia. Separation—Tests, chemical and physiological. History—Preparations, official and non-official. Physiological effects—Causes of death—Post-mortem appearances—Treatment and antidotes—Remarks 568 INDEX 583 ADDENDA. A. THE following is my own experience of the differences between strychnia and morphia.—C. G. S.