(Pp. viii + 479; figs. 121. 30s.) Edinburgh and London: E. & S. Livingstone, 1962. THE author originally hoped to provide a background of biological knowledge and at thd same time to interest the student in applications of botany to his life work, but claims only the first objective for this book. As far as medicine is concemed it is doubtful if botany has now any application except in so far a...

• A theoretical model capable of explaining the relationship between the EMP generated by the heart and the electrocardiographic lead voltages must be based on quantitative knowledge of the resistivities of the tissues of the thorax. At the time this study was undertaken, the most recent investigations of tissue resistivity in living animals were those whose results are summarized in the first ...

In the 1960's, it was demonstrated that Treponema pallidum can persist in the lymph nodes of patients with penicillin-treated late syphilis, and that the organism can be found in aqueous humor and spinal fluid in cases of late seronegative lues as well. Research in this field obviously requires acceptable standard methods. Following a workshop on the subject held at the Center for Disease Contr...