Experiments for determinifig Standards of Weight, bfc. 147 



II. 



y/» Account of feme Endeavours to a/certain a Standard of Weight and Meafure. By Sir 

 Georue Shuckburgh Evelyn, Bart, F.R.S. and AS. 



(Continued from p. 107, of the prefent volume.) 

 (§. 20.) Experiment of the Cube of Brafs weighed in Air. 



JL HE cube was fufpended to the right arm of the beam, by the fcale belonging to it, and the 

 left fcale pan, with the mark x, was hung at the other end of the beam, in which were placed 

 the following weights *, made by E. Troughton. 



grains. 



■ viz. No. 15 of 16384 

 14 - 8192 



13 - 4096 



12 - 2048 



II - 1024 



9-256 



84,82 



• — inch. 



The total weight of the cube ? » o o C the barom. being at 20,0 



in air 5 = 32°«4,82 J ^^^ ^^^^^^ . I _ ^^ ^^^'^^ 



(§, 21.) Experiment of the Weight of the Cylinder in Air. 



grams. 



No. 15 of 16384 

 13 - 4096 

 II - 1024 



«"■"'• 53>37 



But a counterpoife of 555,02") 

 having been ufed, 

 by miftake, in- 

 fteadof - - 552,34 



having been ufed, 1 2J>557j37 



by miftake, in- i 



2,68 



inch. 



- 29^0 

 62 V 



Add this excefs = 2,68. 



And the total weight of the cylinder is = 21,1:60,05 ^^^^ barometer at 



^ \ " ' -* ^the thermometer at 



(§. 2a.) The Cube weighed in dijiilled Water, 

 Sept. 5. Put into the left fcale, the cotmterpoife for the water f 300 1 grains 



'■'^^'^ tioo|= - . 400,00 



The cube, with its fcale, was then immerfed in the water. 



* This fcale contained alfo 555,01 grains, being the weight or counterpoife to the fcale for the cube. 



I then 



