Jan. 2 M. Same experiment repeated with the same water, which had been left in the tubes all night. Therefore salt in 2999 conducts 22 times better than distilled water. The same experiment repeated, only the water in the tubes was changed for fresh by pouring out the old and putting in fresh by small funnel, without taking out the wires. Therefore salt in 2999 conducts 72 times better than distilled water. The same experiment repeated, only the distilled water changed for that used in the preceding year. •4 1.1 considerably greater. plainly less. 8 supposed equal. Therefore salt in 2999 conducts 47 times better than distilled water. Jan. 3. Experiment repeated with the same water left in. Therefore salt in 2999 conducts 38 times better than the distilled water. The distilled water changed for the new distilled water. Therefore salt in 2999 conducts 86 times better than distilled water*. Salt in 2999 compared with salt in 150,000 in same tubes. 1.2 43.5 sensib. greater. Electrom. = 4. Therefore salt in 2999 conducts 26 times better than salt in 150,000. The experiment repeated with the same waters, only the wires in tube 12 brought nearer. 622] Examination whether comparative resistance of salt in 2999 and salt in 150,000 was the same when tried in the above-mentioned manner, or when passed through 2 wires in glass of water, as in fig.* Jan. 6. The tubes 12 and 20 filled with salt in about 105 of water: salt in 150,000 of water in glass. 2 jars electrified to 13 and communicated to the rest. 33.5 If the distance of wires in tube 12 was the shock was sensibly 18.5 The same tried as before, only with the jars electrified to 2 and the shock received with shock melter*. If the distance of wires in tube was shock was plainly less than through wires in glass. (31.5 greater The glass filled with salt in 2999 and the shock compared with that through tube 20 with same solution of salt in 105. The jar electrified to 2 and received with shock meltert. If dist. wires in tube 20 was shock was (greater wires in glass. less than through N.B. Great irregularity was found in trying this last experiment, the cause of which I am unacquainted with. Therefore salt in 2999 conducts 31.5 times better than salt in 150,000. The same salt in 150,000 which was used in this experiment was saved and compared with salt in 2999 in the usual manner with tubes 12 and 20, electrometer at 41. If distance of wires in tube 20 was (1.2 shock was plainly 1.85 than through tube 12 with wires at 42.4 inches distant. (greater less Therefore salt in 2999 conducts 24-6 times better than salt in 150,000. The thermometer in all the foregoing experiments of this year supposed to be about 45o. 623] Exp. 11. Saturated solution in tube 14 compared with salt in 149 of water in tube 15. Tube 15 14 Electrometer at 31. Th. = 45. 1.6 41.8 sensib. greater. Sat. sol. conducts 20.5 times better than salt in 149. [See figure in facsimile of MS. on opposite page.] + [The reading here is doubtful; see facsimile of MS. on opposite page. Cavendish says, Arts. 601, 602, 616, that he took the shock with metals in each hand, but the word here cannot be read "metal." The word occurs also in Arts, 585 and 637.] P.9 Examination whether comparative resistance of ratt in 2999 & salt in 150000 was the same when Truex in above mentiond manner. of when passed through a wires in glass of water as in I 2 Jan. 6 The tubes 12 & 20 filled with salt in about 105 of water salt in 150000 of water in glass 2 garsel to 12 & Commun. to rest If dirt wires in tube 12 was 33,5 the shach .3 1815 was sensib les sater than that through the wires in glass The same tried as before only with the jars el. to 24 The shock received with shock metter If dist wires in tube was (315 shock avas plaint & tess 2013 than through wines in wines in glass The glass filled with salt in 2999 & the shack compared with that through tube 20 with same sol. salt in 105 15 The jam el. to 2 & received With: shook metter If dist. mines in tube 20 ovar [greater than through wires in glass N. P. Great irregularity found in trying. the last experiment the cause of which I am unacauainted with Therefore salt in 2999 conducts 7015, 5 times better than salt in 150020 To face, p. 326. Exp. 12. Jan. 8. Sat. sol. in tube 22 compared with salt in 149 in tube 23. Electrom. 11. Th. = 42. [R. 146000.] = Tube 23 Tube 22 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. 6.59.7 supp. = 35.8 in tube 23. Sat. sol. conducts 4.38 times better than salt in 29. |