11. What did Signer’s DNA look like?
Shrivelled skin. Image 1 shows samples in
bottles kept by Wilkins. Images 2 and 3 show a sample mounted
fairly crudely for early work and a later more sophisticated
device built in house for mounting. Wilkins has been described
as being particularly adept at pulling by hand the dampened
film into the fine threads required for the diffraction work.
Franklin used a highly polished and oiled microscope without
the lenses for the same purpose.
