Base of skull with dura mater, shown in isolation, in 2 numbered illustrations. 1 illustration of skull divided to remove anterior hemisphere, brain removed to show cranial fossa and dura mater. Tentorium cerebelli shown intact, some cranial nerves visible, anterior view. 1 illustration of skull divided to remove hemisphere; brain removed to show cranial fossa with dura mater in situ, falx cerebri and some cranial nerves shown, lateral view. Cranial sinuses indicated.
