C S74 ] 
cial elc&ricity, p. 8c— 9 r . Corollaries deduced from the above experiments and 
observations, p. 91 — 94. On the eleftricity of chocolate, 94 — 96. The reftoration 
of that property to it, when loft, by melting it together with a Small quantity of 
olive-oil, p. 96, 97. Remarks on electricity, 97, 98. Obfervations on fome new 
and Singular phenomena in excited and charged glafles ; with experiments made in 
confequence of thefe phenomena, farther illuftrating the Franklinian theory of the 
Leyden bottle, p. 98 — 1 16. A defeription of the apparatus conftrudled for that pur- 
pofe by Mr. Henly 1 , p. 99, 100. Experiments and obfervations on Mr. Volta’s 
machine, with remarks, p. 116 — 118. A Simple eleflrical apparatus, by which 
almoft every article may be examined with the utmoft facility, p. 1 18. Obfervations 
and precautions in the ufe of it, p. 1 19, 120. The eleflricity of various fubftances 
difcoveredvvith.it, p. 1 22 . Metals, ibid. Animal fubftances, p. 123. Vegetables, 
p. 124, 125. Corallines, p. 125. Salts, ibid. Foflil and mineral fubftances, 
p. 125 , 126. Artificial fubftances, p. 126. Remark on the rubbers ufed, p. 127 — 
129, Thoughts on the attion, influence, and effetts of electricity, p. 129 — 144. 
Obfervations on the eledlricity of the atmofphere, p. 50. A quantity of eledlricity in 
the atmofphere at all times, ibid. The eledlricity of the atmofphere and fogs of 
the fame kind, ibid. Strongeft eledlricity is in thick fogs ; the weakeft in cloudy 
weather, ibid. Eledlricity may be obtained by rubbing Smooth glafs with a rabbit’s 
Skin, p. 397. 
Eleffrometer, an atmofpherical one, its defeription and ufe, p. 48, 49. Defeription of 
one for the rain, p. 51, 52. Defeription of a pocket one, p. 399, 400. Mr. Hem- 
ming’s experiments with his eledlrical cylinder, fome days after ufing it, on the balls 
of Canton’s electrometer, p. 109 — 113. 
Emelman , Mr. his journey into Africa from the Cape of Good Hope, p. 38. See 
Africa . 
England , the evaporation of fome parts of it, p. 233. Not correspondent with that at 
Liverpool, ibid. 
Evaporation. Obfervations on the annual evaporation at Liverpool ; and on evaporation 
confidered as a teft of the moifture or drynefs of the atmofphere, p. 244. Quantity 
of rain failing not fo good a teft of the ftate of the atmofphere as evaporation, p. 244, 
245. Method of determining the annual evaporation in Liverpool, p. 245, 246. Ex- 
planation of the tables cf evaporation, p. 246. A comparative view of the evaporation, 
rain, winds, and temperature of the air there, during the years 17 72, 1 773, 1774, 
and 1775, p- 247—250. Depth of rain not a true index of the moifture or drynefs 
of the atmofphere, p. 2£q — 252. Why much rain gives no more moifture to the 
atmofphere than a little, p. 25 1. Annual evaporation at Liverpool, p. 252. Eva- 
poration at London, p. 2 $2. Annual evaporation at London exceeds that at Liver- 
pool, ibid. Exhalation from water at Delft in Holland, ibid. Evaporation of Some 
parts of England, p. 253. Not correspondent with that at Liverpool, ibid. Annual 
evaporation from water fix times as much as from the earth, ibid. Mere falls in 
rain 
