The catechisms of Bellarmine (1603) and Bossuet (1687) had considerable vogue, and a summary of the former known as Schema de Parvo was sanctioned by the Vatican council of 1870.
In the earlier accepted notion of direct segmentation, usually known as the schema of Remak, division was described as commencing in the nucleolus, as thereafter spreading to the nucleus, and as ultimately implicating the cell-substance.
When an act of thought employs it as a schema to unify several species, it acquires its logical aspect (respectus) of generality; and the various living beings qualified to have the name animal applied to them constitute the natural class or kind.
For as data of sense are only possible objects when received in the forms of space and time, and as space and time are only cognized when determined in definite fashion by the understanding through the schema of number (quantity) or degree (quality), all intuitions are extensive quantities and contain a real element, that of sense, which has degree.
He postulates his unity in senses and at stages in which it is inadmissible, and so supplies only a schema of relations otherwise won, a view supported by the way in which he injects certain determinations in the process, e.g.