the brain was then removed from the skull , cut into 2-3 mm thick coronal sections , and tissue samples taken from the area immediately adjacent to the marked area were immersed in 2 % oso4 buffered with 2 % potassium dichromate containing 0.2 % cacl2 at ph 7.7 ( gobel , 1968 ) .
C0006104
brain
C0037303
skull