156 



Mr. Hassler's direct comparison of the standards gives 2.679367 

 lbs., or 15433.15902 grains. The difference between the two is 

 0.525228 grains. 



The two first weighings were upon a beam considered less capable 

 of accuracy than that used in the remaining eight. The mean of the 

 last eight weighings gave as the value of the kilogramme 2.678844 

 lbs., or approximately 2.6789 lbs. A number easily remembered 

 from the peculiar order of the decimal figures. 



2.6789 lbs. is equivalent to 15430.464 grains, which is less than 

 Mr. Hassler's determination by 2.695 grains. 



It was to be expected that the weighing here would fall short of the 

 weighing in France, on account qf the handling and rubbing which 

 the bars must necessarily undergo in transportation. On the other 

 hand, Mr. Hassler's result is probably too high. 



The result obtained upon comparison by the French Minister of 

 the Interior, for the kilogramme, was - - - 15432.719 



By Dr. Moll, 15432.265 



By Weber, at Berlin, by platinum, . . - , 15432.082 



By Hassler, 15432.634 



15432 grains will correspond exactly to 643 dwts., or 32.15 oz., 

 or 2.67916 lbs. 



Upon 4th January, 1843, a deposit of French gold was made at 

 the Mint by Mr. August Belmont. 



The weights of the kilogramme deduced from the three weigh- 

 ings were respectively, 32.15494, 32.15282, 32.15780 oz.: mean 

 32.15487 oz., equivalent to 643.097 dwts., or 15434.337 grains, 

 which gives an excess to the value of the kilogramme of about 2 

 grains. 



Dr. Hays annaunced the death of Dr. Lorenzo Martini, of 

 Turin, a member of this Society. 



Mr. Kane having expressed a desire to be excused from 

 serving upon the Committee on the revision of the By-laws, 

 Mr. Dillingham was appointed upon that Committee in his 

 stead. 



The Prince of Canine and Musignano of Rome, was invited 

 to represent this Society at the meeting of the Scienziati 

 Italiani of Naples, on the 20th September next. 



Mr. Edward Miller, Civil Engineer, of Philadelphia, was 

 elected a member of the Society. 



