Handbuch der mikroskopischen Anatomie des Menschen.

The problems of certain supporting tissues are presented with Schaffer's characteristic breadth of view and minuteness of detail. The notochord is shown to be the most primitive of such tissues and with it are considered others, such as fat, which also owe their resilience to cell turgor. The various types of cartilage and chondroid tissues are likewise discussed from histologic, cytologic, developmental, metabolic, chemical and historical aspects. The section on bone, by Weidenreich (the teeth are not included), is almost as comprehensive except for the cytology. Bone is classified on the basis of the fibrous structure of the ground substance. Heterotopic bone formation is regarded as due primarily to local metabolic conditions that change the activities of the resident cells. The third section covers the architectonics of bone in general and of certain bones in particular. There is also an excellent description of the histology of the joints and of