CONGENITAL DEFORMITIES AND DISTURBANCES OF GROWTH
Comparative Study of Congenital Coxa Vara and Coxa Plana.
—Carnitz1 made histologic examinations of three specimens from the femoral head in congenital coxa vara and compared these with the pathologic changes recorded in coxa plana. He concluded that, histologically, infantile coxa vara and coxa plana cannot be differentiated. They appear to be variations of the same developmental disturbance during growth.
Anatomic Basis and Origin of the Cross-Striations in the Metaphyses of Growing Bones.
—Hamperl2 studied the broad bands of cross-striation in growing bones resulting after intoxication from phosphorus, arsenic or lead and from syphilis and deficiency of vitamin D. He excluded from study the thin transverse lines which he observed in roentgenograms with each year of growth. A histologic examination of these broad metaphyseal bands was made in two cases. The bands consisted of a thick network of bony lamellae enclosing