( 5 ? « ) 
mentioned, feveral Polarities in no greater Length than’ 
about one Foot. My Bars were not made of German^ , 
but more ordinary Steel, of about 4 d. per 16 . 
I never yet tried the Experiment of weighing Pieces 
of oblong Steel juft before, and prefently after the 
Touch, but fuppofe (from Mr. Norjnan's Experiment,. 
New ^ttradl^ive^ Chap*v\.) that my own Gonje- 
diures are right, That oblong Steel of a conve- 
nient Length and Weight, perhaps 3 or 4 Feet, and 
10 or II Ounces, may, if weighed with a very nice 
Beam, made of Iron or Steel, the Cords of the Seales 
being of a common Length, feem to lofe a Grain or 
two of its Weight (more or lefs according to the Sub»- 
ftance of the Beam, Shortnefs of the Cords, and De- 
gree of Magnetifm in the touched Steel). I fay, 
feem to lofe, becaufe the touched Steel with one of 
its Poles attrads the Beam not juft at the End thereof 
to which it is fufpended, but there,, and, more or lefs,, 
all the Way between the faid Point of Sufpenfion and 
the Middle of the Beam. This muft make it appa- 
rently (not really) to ponderate lefs, as is the Cafe 
of Stilliards, demonftrated by theDodrine of the Lea- 
ver: Alfo the other half of the Beam being fomewhat 
attraded by the other Pole of the Steel, affifts the 
Weights which are laid againft the Steel, and encrea- 
feth the Miftake, which is greater or lefs, according 
to the Pofturc of the Steel, whether (if horizontal) 
it is parallel or perpendicular to the Beam, or (if in 
an ered Pofture) according to which Pole is upward. 
My Thoughts are, that Steel after the Touch (A 1 -* 
lowance being made for what is rubbed off by 
touching, which I take to be infenfible, if done on-foft 
Armour) in.uft,_ if in an horizontal Pofture, neceffarily 
draw-' 
