I "5 3 



thoroughly with the butter as foon as it has been 

 freed from the milk, and put it without lofs of time 

 down into the veflfcl prepared to receive it, preffing 

 •it fo clofe as to leave no air-holes, or any kind of 

 Cavities within it. Smooth the furface, and if yoa 

 ^xpe6t that it will be above a day or two before 

 you can add more, cover it clofe up with a piece of 

 clean linen, and above that a piece of wetted parch-^ 

 ment, or for want of that, fine linen that has been 



m^ inch thick, and two feet long. Near to ttch end, and at about 

 half an inch from the fame fide at each end, make a hole through the 

 board, to- which the fcales may be failened by means of a loop of 

 wire; obferve, that thefe two holes fhould be placed exad\ly at the 

 fame dillance from the edge. Let him then load the two fcales, one 

 •f them with one ounce, and the other with fixteen, and having^ 

 drawn a line parallel to what will now appear to be the upper fide of 

 the beam, at half an inch from the top all along on each fide, let hita 

 be provided with two fharp-pointed inftruments, fuch as a fhoemaker't 

 awl : Let him then try to find a point in the new-made line on each 

 fide of the beam, where, when the beam is allowed to vibrate on his 

 awls placed dire<flly oppofite to each other, the two weights balance 

 each other. This point he will foon difcover to be much nearer one 

 of the ends of the beam than the other. Through this point let him. 

 pierce a hole by meians of a round hot iron. Through this hole put 

 a piece of thick iron wire, which if fupported at each end willferveas 

 a pevot. The apparatus is now compleat* 



And whenever it is afterwards wanted, nothing more is neceflary 

 than to place the butter, whatever be its weight, into the butter-fcalc, 

 'and then put as much of the compofition into the oppofite fcale as 

 brings the beam to a balance: and this will in all cafes be the due 

 proportion of fait for the butter, whatever the weight of that butter 

 may be. 



la dipped 



