Spina bifida, shown in situ and in isolation, in 5 numbered illustrations. 3 illustrations of neonate with cervical spina bifida occulta (closed.) Anterior, posterior and lateral views. 2 illustrations of dissection of the skull and spinal cord, shown in isolation, showing openings in the occiput, cysts, and divided cervical spinal column. Anterior and posterior views. Text describes the fetus as a monstrosity.