211 



TRANSLATION OF CATALOGUE OF BODIES, 



ATTRACTIVE AND NOT ATTRACTIVE. 



BY ARCHBISHOP TENNISON. 



PUBLISHED IN THE BACONIAN A, 1678. 



IF there be made a turn-pin of any metal, after the fashion 

 of a magnetic needle, and amber be applied to one end of 

 it, after having been gently rubbed, the pin will turn. 



Amber heated by the fire, be it warmish, hot, or set on 

 fire, it does not draw. 



A little bar of iron red hot, flame, a lighted candle, a hot 

 coal, put nigh sheaves (or straws) or turn-pins (or compass 

 needles) do not draw. 



Amber, in a greater mass, if it be polite, draws, though 

 not rubbed : in a lesser quantity, and in a less polite mass, 

 it draws not without rubbing. 



Crystal, lapis specularis, glass, and other such electric 

 bodies, if burnt, or scorched, draw not. 



Pitch, the softer rosin, benjoin, asphaltum, camphire, 

 galbanum, ammoniac, storax, assa, these draw not at all 

 when the air is hot: but when it is cooler, they draw 

 weakly, and so that we can j ust perceive them to do so. 



Reeking air, blown up amber, &c. from the mouth, or 

 from a moister atmosphere ; choaketh the attractive virtue. 



If a paper, or a piece of linen, be put between amber and 

 chaff, there is no motion, or attraction made. 



Amber, or other electrics, warmed by the sun-beams, 

 have not their attractive virtue so awakened, as by rub 

 bing. 



Amber rubbed, and exposed to the beams of the sun, re 

 tains its attractive force the longer; and does not so soon 

 lose it, as it would do in the shadow. 



Heat derived from a burning-glass to amber, &c. does 

 not help its attraction. 



Sulphur, and hard wax, set on fire, do not draw. 



