Ctmparlftn of French and EngJiJh Weights and Meafuret, 



165 



long decade. 

 1 



Square decades. 

 1 = 



Cube decades. 

 Avoird. or decade oz. 



Comparative Tables, Englijh ivith French. 



LONG MEASURE. 

 Mitre. Metre. 



0.03047983 fere i r= 



Long decadest 



808583358, 

 or inches 39.3703 



f 32.808583358, &c, 



SQUARE MEASURE, 

 Ares. Ares. 



0.0000093902 fere I = 



Square decades; 



f IO764O.3142 



\ or fqr. inches 155002.052448. 



CUBE MEASURE. 



Litres. Litre. 



0.02831637 fer« I 



Cube decades. 



.3152622, & 

 or cubic inches 61.024772J. 



— f 35-3152622, &c 



WEIGHTS. 



Grammes. Gramme. 



28.31637 fere i = I 



decades are reduced 



Long, 



Square, 



or 



Cube. 



And decade ounces are reduced to grains, 



Decade oz. 



00353 1 52<5, &C. 



or grains or 15.45O42625. 



S, 1 2 

 Englifli inches by 1 



multiplying by S j'^^g 



containing, 



{Long, 1 

 Square, / 

 Cube. J 



{7000. ■} f Avoird. ^ 



or V to the lb. ■< > by 



5760. J I Troy J 



multiplying the ounce by 437.5 = the number of grains in an avoirdupoife ounce. 

 Eaft Smithfield, Jpril 2^, 180O. 



Defcriptiott of an Engine for raifmg Water. 



THE hydroftatic machine here defcribed was invented by me fome years ago* It has 

 been feen but by few: Mr. Watt, of Birmingham, Mr. Rennie, the civil engineer, 

 Mr. More, the late fecretary to the Arts and Sciences, Mr. George Adams, late of Fleet- 

 ftreet, who has made handfome mention of it in his Leftures. I have no doubt but you 

 can readily point out many ufes to which it may be applicable. 



Ma^ 17, 1800. H. G. 



A SeBion 



