Tuberculin Treatment

Whether the reader is or is not in accord with some of the theoretical parts of the book matters not, the point being that there is here placed within the reach of all who wish to use tuberculin a text-book, written in the simplest and most lucid manner, which will enable them with a little care and practice to select the right case and the right tuberculin and to regular the dosage on fixed principles. The book is divided into three portions, with a table y contents at the beginning of each. The first part deals witlj the general lines of tuberculin administration, and in it specif attention is called to the essential unity of all tuberculins, and it is pointed out that this fact simplifies a good deal that ha5 hitherto appeared obscure. At the same time, the two maiU varieties of tuberculins are indicated, namely those win0*1 contain endoplasm and those which are extracts only. The important clinical use which may be made of their different in solubility is pointed out. The section on the relation betweej1 sensitiveness and tolerance, with diagrams, is particularly g??d' Under the heading " Standard of Dosage " the authors advocate the adoption of the cubic millimetre, and it is impossible j-0 read their views without agreeing with them that " it is remark' able that it has not yet been widely adopted." f The table of equivalent doses under various systems 0