Page:The Art of Distillation, 1651.djvu/37

 Book.1.Of the Art of Ditillation. 13 prevented, and of things of a maligne and venenate quality being ditilled in uch a furnace the fume, or vapour if the glae hould break may be carryed up into the cymnie which otherwie will flie about the roome to thy prejudice.

In all kinds of ditillation the veels are not to be filled too full, for if you ditill Liquors they will run over, if other olider things the one part will be burnt before the other part be at all worked upon, but fill the fourth part of gourds, the halfe of Retorts, the third part of copper veels, and in rectifying of pirits fill the veel half full. Let thoe things which are flatulent, as wax, roin, and uch like, as alo thoe things which doe eaily boyle up, as honey, be put in a leer quantity, and be ditilled in greater veels, with the addition of alt, and, or uch like.

There be ome things which require a trong fire, yet you mut have a care that the fire be not too vehement for feare their nature hould be detroyed.

You mut have a care that the lute with which veels are cloed do not give vent, and alter the nature of the Liquor, epeciallywhen a trong fire is to be ued.

Acid Liquors have this peculiar property that the weaker part goes forth firt, and the tronger lat, but in fermented and Liquors the Spirit goeth firt, then the phlegme.

If the Liquor retain a certain Empyreuma, or match of the fire, thou halt help it by putting it into a glae cloe topt, and o expoing it to the heat of the un, and now and then opening the glae that the fiery impreion may exhale, or ele let the glae tand in a cold moit place.C3:8. When