crassamentum

In 1811, Arnell stated that "the blood drawn in the early stage appeared like that of a person in full health; there was no unusual buffy coat, neither was the crassamentum broken down or destroyed."

The circulating fluids are capable of being vitiated by acescent or putrid ferments, the former acting on the serum, and causing critical fevers; the latter on the crassamentum, and exciting phlogistic diseases.

The Blood which was taken away the Day before, had a thin Buff at the Top, but the Crassamentum underneath was of a dark Colour, and of a loose Texture: p.

His Blood threw up a little Buff; the Crassamentum was of a blackish Colour and of a loose Texture, with a good Proportion of a yellowish Serum.

On the 6th, the Blood, which had been drawn the Day before, had thrown up a slight Buff; it appeared to contain but a small Proportion of Serum, and the Crassamentum was of a loose Texture.