Ocular spectres and structures as mutual exponents : a treatise eustachian tube, why open in deglutition ; a paper / by James Jago.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

Ocular spectres and structures as mutual exponents : a treatise eustachian tube, why open in deglutition ; a paper / by James Jago. Public Domain Mark. Source: Wellcome Collection.