CATALOGUE. ELECTRICITY. 



423 



Nollet on the illumination of ice. A. P. 



1766. H. 2. 

 Lane. Ph. tr. 1767- 451. 



A shock passing through water is visible. 



Nairne. Ph. tr. 1777. 614. 



Observes that the light is verj- faint In a moist vacuum. 



Deluc Modif. I. Ixxxv. 



On barometrical light. 



Morgan. Ph. tr. 1785. 272. 



The more readily a body conducts, the more difficult it 

 is to make it luminous. Gold leaf may be made luminrus. 

 The light produced by electricity streaming through very 

 rate air is green : when the air is denser it becomes blue, 

 and then violet, till the air no longer conducts. 



Crellon electrical light. Rozier, Feb. 1717. 

 Good figures of sparks. Nicholson. Ph. tr. 

 1789. 265. 



A ball I*,, of an inch in diameter, highly electrified, was 

 surrounded by a steady faint light ; a ball of an inch and a 

 half was rendered luminous, with a bright speck moving 

 on its surface. 



Eandi. M.Tur. 1790. V. 7. 



Says that a faint light may be seen in the dark, in the 

 most perfect vacuum that can be procured, 

 lirxleben by Lichtenberg. dxxiv. 



The lock of a pistol gives light under water. 

 fJnch on the light of sugar. Ph. M. V. 



207. 



Electric Heat. 



See Galvanic Electricity. 



Winkler onfiring spirits. Ph.tr. 1744.XLIII. 



166. 

 -f-Winkler on electrical combustions. Ph. tr, 



1754.772. 

 Miles on firing phosphorus. Ph. tr. 1745. 



XLm.290. 

 Roche on a frock set 6n fire. Ph. tr. 1748. 



XLV. 323. 

 Kinnersley on an electrical air thermometer, 



and on the extension of wire. Pb. tr. 



1763. 84. 



Priestley on the rings made on metal by 

 explosions. Ph.tr. 1768. 6S. 



The metals were held near the point of a needle. The 

 battery contained 21 square feet. 



Ingenhousz on lighting a candle by electri- 

 city. Ph. tr. 1778. 1023. 



Employs cotton, with powdered resin. 



Nairne on the effect of electricity in shorten- 

 ing wires. Ph. tr. 1780. 334, 



Wolf on firing gunpowder. Goth. -Mag. II. 

 ii. 70. 



Van Marum on the effects of electricity. 

 Nich. II. 527. 



Bertholiet's comparison of electricity and 

 heat. Nich. VIII. 80. 



Thinks that electricity produces heat only by means of 

 chemical changes. 



Cuthbertson has observed, that gunpowder is readily fired 

 by a discharge passing through an interrupted circuit, by 

 means of wet tubes and wet twine. He says that a dou- 

 ble charge melts a quadruple length of wire. 



Ehrmann's electrical lamp consists of an electrophorus, 

 giving a spark, which sets on fire a stream of hydrogen gas. 



Congelation. 



Robert on the supposed effect of electricity 

 in congelation, lloz. XXXVI. 222. 



Supposed Transmissinn of Odours. 



Nollet. Ph. tr. 1750. 368. 

 Winkler. Ph. tr. 1751. 231. 



With Watson's experiments. 



Watson against the transmission of odours. 

 Ph. tr. 1756. 348. 



Chemical Effects. 

 Priestley, vii. 



Electricity often discolours the leaves of delicate flowers. 



Pearson on the gas produced by electricity. 



Ph. tr. 1797. H"?. 

 Wollaston. Ph.tr. 1801. 

 Van Marum on decomposing water by 



electricity. Gilb. XI. 220. 



