Bull. Fac. Sci. Fouad I Univ. (Cairo) 19: 43-58. 3 pls.

–Arabic summ. Edinger (1975) gives the following annotation: "I: A newly discovered "brain" of an old Protosiren, pp. 43-50, Pl. I (dorsal), Pl. II (frontal, reduced olfactory bulbs!), Pl. III; II: On the spinal cord of fossil Sirenia, pp. 51-57. As the lumen of the neural canal in the vertebral column of Recent, Pliocene, and Miocene Sirenia diminishes caudad from the brachial enlargement, its enlargement in the posterior dorsal vertebrae in Miocene, Oligocene, and Eocene forms indicates that a lumbar intumescence of the spinal cord was maintained during reduction of femur and pelvis."