"Fremy devised the theory of hemi-organism, which meant nothing more than that he gave up Liebig's theory of 1843, together with the additions which Boutron and he had made to it in 1846; in other words, he abandoned the idea of albuminous substances being ferments, to take up another idea, that albuminous substances in contact with air are peculiarly adapted to undergo organization into new beings -- that is, the living ferments which we had discovered -- and that the ferments of beer and of the grape have a common origin."