Exp. 12. Jan. 8. Sat. sol. in tube 22 compared s tube 23. Therefore sat. sol. conducts 19.6 times better than salt in 149. Exp. 13. Salt in 149 in tube 5 compared with salt in 2999 in tube 17. Salt in 149 conducts 17.3 times better than salt in 2999. Salt in 149 conducts 16.7 times better than salt in 2999. Exp. 15. Jan. 9. Sat. sol. in tube 22 compared with salt in 29 in tube 23. 6.597 supp. = 35'8 in tube 23. Sat. sol. conducts 4.38 times better than salt in 29. 24] Comparison of water purged of air by boiling and plain water. Salt in 2999 in tube 12. Salt in 150,000 in tube 20. Jan. 12. Tube To 2.0 seemed greater, but doubtful. accemed less, but doubtful. plainly less. The water was then boiled over lamp in the same vial in which it had been kept some time, and then cooled in water and compared in the Therefore if anything water conducted better before boiling than after, but the difference might very likely proceed from the error of the experiment. In order to see whether the water had absorbed much air by being exposed to the air in the trial, some of the boiled water was exposed to the air as much as that which was tried in the tube was supposed to have been, and boiled over again in a vial. It did not begin to discharge air till it was heated to 190°, and then discharged but little. Some more of the boiled water which had not been poured out of the vial seemed to discharge as much air. But some distilled water which had not been boiled began to discharge air almost as soon as heated, and discharged a great deal before it began to boil*. 625] Comparison of water impregnated with fixed air and plain water. Some distilled water was impregnated with fixed air produced by oil of vitriol and marble, and compared with salt in 2999 in same tubes and manner as in former experiments. that the. 2.3 of sal Amm. 302 of sal Sylori 3.17 Jan. 13 Sal bytrei tube in 22 with salt in 29 in tube 22 el. - 2 th. 55 seemed gr. but doubt. plainly arcater seemd less but doubt plainly less |