- 1831, John Burns, The Principles of Surgery, page 91,
- If healthy blood be allowed to remain at rest, it separates into two parts, a red solid portion called crassamentum, and a thin watery part or serum. […] This shows that the proportion of fibrin in the crassamentum does not vary rapidly.
- 1845, Emanuel Swedenborg, The Economy of the Animal Kingdom, Volume 1, page 71,
- Such as are the volumes, such are the crassamenta belonging to the volumes, and such also are the masses ; that is to say, if the volumes are pure, mixed homogeneous, or mixed heterogeneous, such respectively are the crassamenta and the masses.