053r - - - - - Soldering a vise
It is good that the jaws of the vise should be high to make a long piece in it, and that the jaws join well to clamp a delicate object. To solder the nut, after you have forged the bolt, you will make will forge a long iron strip quar of such thickness that it can fit into the notch of the bolt when red hot, & you will bend it po all around, striking it with a hammer. Once it is well jo wrapped around, you will insert it the bolt o around which is it is wrapped.
Copper
If, in the fire &melting, it touches the iron, this iron will be afterwards so brittle that it will be able to be forged.
Lead casting
One mixes it, according to some, with half tin & half lead and, to heat it, one mixes in a little sublimate. It casts well in small sizes in a cuttlefish bone, provided it is good.
Paper molding
Boil over hot ashes some cotton in aqua fortis mixed with sal ammoniac, like aqua regia, and the cotton will become very fine, like powder. Mix it next it with gummed water & you will cast very delicately.
Almond trees, apricot trees
They grow quite straight if they are grafted. And every kind of tree whose fruit has pits, such as nectarines, peaches, clingstone—peaches, apricots etc., comes best by shield budding on an almond tree by.
Lead and copper casting
Lead & tin come out well in white chalk but the softer it is the better. The one from Champaigne reaches the price that is fixed in Lyon. Burnt & calcined horse bones mold very neatly.
at left bottom margin
I believe that the marrow from the horns of oxen or sheep, that is to say, the spongy bone from the inside, molds very neatly and is better than bone.
at bottom margin
Note that all brittle metal comes out better than fat ones. Also, lean sand receives it better & absorbs it rather than the dense one.