​Now in its seventh edition this book has been an essential companion to laboratory workers for over forty years.The new edition has been revised and updated to include the more recent developments in laboratory practice, while at the same time retaining the popular methodological approach of the earlier editions. New material on immunology, molecular genetics and histocompatability testing has been added.This book will remain an indispensable companion to every student embarking on a career in this challenging specialty.​