This section is from the book "Soyer's Standard Cookery", by Nicolas Soyer. Also available from Amazon: Soyer's Standard Cookery.
Boil one pint of veloute in a stewpan, and add three-quarters pint of melted white poultry jelly. Put the stewpan on an open fire, reduce the sauce by a third, stirring constantly the while, and gradually add one-half pint of very fresh cream. When the sauce has reached the desired degree of consistency rub it through a sieve, and stir it frequently while it cools, to prevent a skin forming on the surface. When dishing up, this sauce should be cold, so that it may properly coat immersed solids and yet be liquid enough to admit of the latter being easily steeped in it.
 
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