HEW PROCESS FOR CLAYING SUGARS. 41 



the coalefced compound in the van of the train. If the pre- 

 ceding ftatement be natural, the range of a mixture of founds 

 muft be eftimated by means of the ftrongeft individual in the 

 aggregate, not from the coalefced compound, admitting its 

 exigence. This conclufion holds good in a general fenfe; at 

 the fame time I know, that the ranges of certain aggregates 

 exceed the ranges of their ftrongeft conftituents. Of this kind Sounds of ag- 

 is a general discharge of fire-arms; but though I admit the : ^her'naT 

 feci, it does not appear to be an inftance of coalefcence. For their loudeft 

 the report of every mufket employed is nearly alike ; and the c °^ il ^ nts ' 

 explofion of the whole number, at the fame moment, agitates 

 a large field of air. Now I know, by obfervation, that when 

 an extenfive furface is made to vibrate it founds to a great dif- 

 tance ; for when the fhear-men of Kendal beat the tenters on Shearmen beat- 

 a calm morning:, the ftrokes may be heard for two miles, or ! ng j lent ? ri 



11 r- I n 1 1 rr r, , , " eard tW0 ^llc*. 



more ; though the ear or a by-irander is not much affected by 

 them, the operation being performed by finking the ftretched 

 cloth with a ftick not thicker than a man's finger. Seeing 

 then a number of founds which ar%s nearly in unifon, forms an 

 aggregate of more power than any one of its conftituents, it 

 follows, that when a multiplicity of inftruments contains a 

 ftrong combination of unifons, that combination determines the 

 range of the concert. 



JOHN GOUGH. 

 Middlejhazv, near Kendal, Auguft 19, 1802. 



IX. 



A nezv Procefs for Claying Sugars, propofed by C it. Hassel 

 Lachenaie, Chief Apothecary of the Military HofpitaU of 

 Guadaloupe to the Agents of the Confuls of the French Republic 

 in the Windward Ijlands.. 



(Concluded from Vol. II. Page 190.; 



JL HE third and laft which I fhall mention, though the leaft Economy of 

 of the inconveniencies of the procefs of Citizens Boucherie, t,me * 

 cannot be reconciled with the economy which we are obliged 

 to ufe in the employment of our time ; namely, the neceffity 

 of graining the fugar before it is put into the cafes, &c. 



After 



