This work has been expanded in some parts and condensed in others, obsolete processes being left out and the more modern and exact methods introduced. The history of poisoning is given in an interesting introductory chapter and this is followed by Part II, which gives the general considerations of definition, classification, and modes of search. The rest of the work is devoted to the consideration of the specific poisons. The treatment is thorough, the symptoms and considerations which are of importance for the practitioner being given with especial fulness. A large amount of space is given to the poisons of animal origin such as ptomains, adnephrin, disease toxins, etc. An account of food poisoning is introduced and in other respects the book is brought fully up to date.