To the extent that reference classes rely on kinds, Reichenbach resorts to psychology: primarily, things are sorted into kinds by the immediate perception of similarity, or by similarity in memory.
If you think science just aims for empirical adequacy, then it may seem that sorting patients into kinds is enough, provided that we can understand the course of the disease.
The later Mohists also seem to have taken this as their primary focus, since as we saw above they explain both perceptual knowledge and understanding as an ability to match names with things by describing them (A5) or sorting them into kinds (A6).
Rather than identifying the causal factors, then, the natural history approach tracks the operation of hitherto unknown causes, by sorting patients into kinds with a presumed common nature, based on the natural history of their conditions, or on other grounds that I have not talked about, like differential responses to drugs.
However, the compound phases in alloys commonly act as cathodic phases in sulfuric acid media and can be sorted into two kinds.
The poem is one of the great accounts of what it is like to see people en masse, sorted into vivid kinds and therefore ennobled — a little like a marathon.
In the "Harry Potter" books, J. K. Rowling gives us the Sorting Hat: a shabby, oracular wearable that tells each incoming Hogwarts wizarding student which of the school's four houses she will be sorted into — and, by extension, the kind of person she really is.
They want everything, at least, that can be run through a system of massive computers and sorted into patterns of various potentially useful kinds.
These are eidê or kinds of soul in a different sense, not the species of motives within a soul but the species that souls may be sorted into.
Cells were sorted into lysis buffer.
