Irius Albius

Unknown

Tower of Descensus library.

Diphrael

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In any field documenting the natural world itself, categorization is of both the utmost concern of the research to better understand the properties and behaviors of a subject and is simultaneously the vexation of any scholar who studies their subject thoroughly.

It is a simple truth that things not artificially created to be perfectly organized will never align as well as many would like to think, with perhaps the exception of mathematics.

As a sanguinist, I have seen and attempted to interpret different kinds of blood for much of my lifetime. The blood of a bovine and the blood of a human are certainly different, yet when merely observed in a glass bottle they are impossible to distinguish.

This is not the case for many creatures in the world, and I postulate that there is value in first noting the visual appearance of blood types, which often share common qualities and components based on said appearance. From there, one can then define their specific qualities and origins.

Using this method, I would propose we can categorize blood by its color; Red, Blue, Green, Purple, Clear, Yellow, and perhaps even the color Amber.

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As all individuals who may read this book are almost certainly red blooded, it would be naive to assume that red blood, which is to say our own blood, would be described as anything other than “blood”.

Even so, for categorical purposes, I believe it important to have a technical name, even if it is one purely used by scholars and practitioners who require discernment between different kinds of blood.

The properties of erythroheme are perhaps the best understood of all blood colors, as it is the most often encountered by us in large quantities. All creatures with a backbone, with the exception of a small number of fish, have red blood. This includes birds, reptiles, mammals, amphibians, and most fish; as well as some species of worm and leech.

Red blood has been used for millennia in medicine, cooking, ritual, and as an alchemical and spell casting reagent.

It either seems to propagate, or propagate from, the bones and other similar structures of creatures with backbones. It is observed as uniquely in some way tied to the very concept of a skeleton, though not exclusively.

While it has been postulated that red blood creates a skeleton in the creature it flows in, the existence of worms and leeches with red blood would imply that instead perhaps the skeleton which makes red blood, or makes blood red.

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