Alexis BOYER (1757-1833), anatomist, Napoleon's first surgeon. 2 signed autograph pieces. 1 p. in-8 oblong and 1 p. in-8. Without lei or date. - Medical certificate for General Marescot. As surgeon-in-chief of the Hôpital de la Charité, he certifies that General Marescot is attacked by a paralysis of the bladder "for which I gave him care jointly with Doctor Pommier, and that following this illness, to which a nervous fever has been added, and that it "becomes an urgent and indispensable necessity" for him to go and stay in the country. - Medical prescription based on gayac resin to be dissolved "in a pint of brandy". "A teaspoonful of this tincture is to be taken every morning in a cup of germander tea [...]". Engraved portrait attached.