PHYSIOLOGICAL REMAINS. 225 



that when it is cold the wax gathereth and swims 

 upon the top of the oil. 



One ounce of oil of almonds cast into an ounce of 

 sugar seething, sever presently, the sugar shooting 

 towards the bottom. 



A catalogue of bodies attractive and not attractive, 

 together with experimental observations about at 

 traction. 



THESE following bodies draw : amber, jet, dia 

 mond, sapphire, carbuncle, iris, the gem opale, ame 

 thyst, bristollina, crystal, clear glass, glass of anti 

 mony, divers flowers from mines, sulphur, mastic, 

 hard sealing-wax, the harder rosin, arsenic. 



These following bodies do not draw : smaragd, 

 achates, corneolus, pearl, jaspis, chalcedonius, ala 

 baster, porphyry, coral, marble, touchstone, haema 

 tites, or bloodstone ; smyris, ivory, bones, ebon- 

 tree, cedar, cypress, pitch, softer rosin, camphire, 

 galbanum, ammoniac, storax, benzoin, loadstone, 

 asphaltum.* 



These bodies, gold, silver, brass, iron, draw not, 

 though never so finely polished. 



In winter, if the air be sharp and clear, sal 

 gemmeum, roch allum, and lapis specularis, will 

 draw. 



These following bodies are apt to be drawn, if 

 the mass of them be small : chaff, woods, leaves, 

 stones, all metals leaved, and in the mine ; earth, 

 water, oil. 



* The drawing of iron excepted. 

 VOL. VII. Q 



