The cane used by Randall Hall in this episode is a replica of the cane used by Barnabas Collins (Jonathan Frid) in the original series Dark Shadows.
Bones tells Zack to look at a skull's anomalous indentation 'under the scanning microscope'. The only scanning microscope' out there is a scanning electron microscope, generally used at about 25,000X magnification, which would be absurd to use on an indentation visible to the naked eye. A good jewler's loupe at 30X magnification would serve better.