International Code of Nomenclature of Bacteria. Bacteriological Code

tion of tabulated facts, figures, and maps with an extensive bibliography. One can only admire the patience and endurance of the authors who have meticulously sifted through a vast number of published papers to give us the information at our fingertips for day-to-day reference purposes. This review has been deliberately delayed in order to put the book to work in a blood group reference laboratory. Experience has shown the need to use the book regularly in order to become familiar with its layout. The subject index refers only to the text, which is somewhat misleading, and to find the incidence of the rare red cell antigen, Mg, it is necessary to use the list of contents, whereupon the reader is quickly referred to the incidence of the antigen in three different populations. Attempts to find the incidence of the A. and pk antigens were unsuccessful but one is left with the feeling that the information is somewhere to be found in the book. To find the incidence of the R. genotype in Negro populations would take a long time and much cross reference. This is an invaluable compendium of tables which, when everything is in your favour, gives answers in minutes compared with an otherwise daunting search of the literature. It is a necessary companion in any blood group reference or forensic laboratory but will probably be too expensive for more general distribution.