Cephalometric measurements on 50 English and 50 Indian adults, equally divided as regards sex, were compared for sex and group difference. Evaluation of the average measurements indicated that the female facial size was generally smaller than the male: the Indian face was not prognathic but was smaller and had smaller facial and gonial angles, and the lower incisor was proclined as compared with the English face. A statistical analysis using the Generalized T2‐test and Discriminatory Analysis brought out these differences very convincingly, and with nearly 80% accuracy it was possible to classify the individuals to their correct sex and Indian or English group. Incidentally it was found that the Sella Nasion Plane, Maxillary Plane and Frankfort Plane are all equally suitable for assessing the upper incisor inclination.

. 4 Ward Sister. 5 Charge Nurse Plaster Theatre. The Princess Margaret Rose Orthopaedic Hospital, Edinburgh, Scotland.Sutntnary. A halo-body system is described which has been developed at Princess Margaret Rose Orthopaedic Hospital in Edinburgh. The system is easy to apply and consists of a standard halo, linked to malleable plates by two hollow vertical rods. These rods are connected to the ring by swivel joints which allow for the movements of flexion and extension. The malleable plates are incorporated into the plaster jacket which rests upon the iliac crests.The results of 13 patients who have had this system applied are discussed and include patients who have sustained fractures of the cervical spine or who have had bone destruction from metastic disease or from infection.U sing this type of system there have been few complications and the patients have benefitted from easy mobilisation.

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