Figure 8 A photomicrograph of a longitudinal section of the positive control goat mandible showing that the outer cortical layer (C) of cancellous bone is reduced in thickness. The bone trabeculae (T) have irregular eroded surface and others are observed as the island of widely separated specules (S). Other trabeculae appeared thinned out as compared with zero controls. Hematoxylin and eosin ×40. Arrow is pointing on ob, o and oc.