Note 2 — Chapter IX · MANUFACTURE OF GELATINE, AND PRODUCTS PREPARED FROM IT.

This preparation is also known by the name Essence d’Orient. The material for its production is furnished by a small white fish very common in the rivers of continental Europe. It accompanies the scales of this fish, and is detached when the scales are triturated for a considerable time and thrown into a vessel of water. To collect the essence the water is poured off upon a fine hair sieve, which retains the scales and allows the water and the product sought to pass through. The latter sinks to the bottom, and is obtained pure by decanting the water. A little ammonia is added to prevent decomposition.