The fifteen years since Fleming James addressed the question of whether manufacturers should be liable without negligence have seen a remarkable expansion in the scope of strict liability in the law of torts, yet the very courts which have been the leaders in this trend have been consistently troubled by the question of how far strict liability should extend within the areas in which it is being applied. While strict liability of the manufacturer for product defects, for example, has been announced in jurisdiction after jurisdiction, in many jurisdictions this has simply led to a morass of questions regarding the definition of defect and how liability for a defect relates to (a) adequacy of warnings, (b) unexpected or improper use, (c) as...