It also has great extensibility for other media formats.
Its physical properties, permeability by water, extensibility and elasticity, receive their interpretation in the needs of the latter.
Erdmann, again, has invented an induction from particular predicates to a totality of predicates which he calls " erganzende Induction, " giving as an example, " This body has the colour, extensibility and specific gravity of magnesium; therefore it is magnesium."
In the living Cephalodiscus a zooid can crawl by means of its proboscis over the gelatinous processes of the outer side of the coenoecium, a position which it can assume owing to the very great extensibility of the stalk, the proximal suctorial end of which remains attached to the inner surface of some part of the coenoecium (Andersson, 1907).
When the limit of extensibility is reached the cell wall increases in thickness from the continuation of the latter of the two processes.