The fonds contains fourteen notebooks kept by the Poisson family during their studies in medicine. The notebooks contain lecture notes and class notes on various topics in medicine taught by prominent professors such as, Jean Étienne and L. Landry, L. Simard, F.A.H. Larue, and J. Sewell.

Notes from lectures of L. Simard taken by J. Ed. Hercule Poisson. Notebooks bound in cloth-backed boards (binding rubbed and bottom corners worn).

Notes from lectures of J. Sewell taken by J. Samuel Poisson. Notebook bound in marbled wrappers (rubbed; vol. I spine nearly splitting).

Notes from lecture of L. Simard taken by J. Ed. Hercule Poisson. Notebook bound in stiff marbled boards, cloth back.

Notes from lecture of L. Simard taken by J. Ed. Hercule Poisson. Notebook bound stitched without wrappers.

Notes from lectures of F.-A.-H. La Rue (Notes sur la chimie organique) and J. Sewell (Pathologie interne: auscultation) taken by J. Ed. H. Poisson. Notebook in marbled wrapper (back wrapper wanting).

Notebook bound in contemporary vellum with printed bookplate of Alexis Eliahim Poisson; also bears signature of a “Dr. Frémont” and date Gentilly, 1845. Appears to be in at least two different handwritings, indicating Poisson may have added to the notebook that originally belonged to Dr. Frémont. The medical terminology is accompanied by descriptions of the methods of treatment, and pharmaceutical products indicate what illness they are being used for

Manuscript notebook of lecture notes, bound in cloth-backed marbled boards (front cover recovered with old newspaper, broken). Most likely taken by J. Samuel Poisson.

Notes from lectures of L. Simard taken by J. Ed. Hercule Poisson. Notebook bound in half leather and marbled boards (bit rubbed).

Notes from lectures of F.-A.-H. La Rue taken by J. Ed. Hercule. Notebook bound in marbled boards, cloth-backed, wanting spine, signatures detached.