INDEX. 
F^UFiJJ}, quarry near Bolca, p. 52. 
Freezing of water hailened by previous boiling. See IFaicr. 
Frog, experiments on the variations of its Internal temperature, p. 45 j. 
Frofi. Frofty days at London in the year 1774, p. 173. 
Fruits, feveral kinds, which generally come to maturity neaf London, never ripen in the 
neighbourhood of Edinburgh, p. 456. Why, p. 460. 
G. 
Gallon. See Weights and Meafures, 
Ganges, feafon and fuppofed caufe of the River’s fwelling, 206. 
Garden, Dr. Alexander, his account of the gyrnnotus eledlricus, or eleftrical eel, p. 102, 
See Gymnotus EleSlricv.s, 
Giants caufeways, an account of two difeovered in the Venetian State in Italy, p. 5, 
See Bafaltes, Rojfo, Giants caufeway in Ireland, its columns approach a 
circular form, p. 7. Their width, ibid. The principal aggregate perpendicular to 
the horizon, ibid.' Giants caufeway, or group of angular columns, an account of 
a curious one newly difcovered In the Euganean Hills, near Padua in Italy, p. 418. 
Situated at Cartel Nuovo, on the rock II Sajfo di San Biajto, S. W. of Monte Rortb, 
ibid. The columns and rock compofed of a fort of grey granite, common to the 
Euganean hills, p. 41-9. Obfervatlons on columnar cryftallizations, p. 419. 423. 
Glafs, foffil, found near Monte Nuovo, and in the Volcanos of the Andes, p. 40. 
Gooch, Mr. Benjamin, his remarks and confiderations relative to the performance of am- 
putation above the knee, by the lingle circular incifion, p. 273. See Am^utation.—^ 
On aneuryfms in the thigh, p. 378. See Aneuryfms. 
Granite, in many places intermixed with bafaltine and other vulcanic hills, p. 14. 
None found in the vulcanic hills of the VIcentine and Veronefe dirtridl:, p. 23. 
Analogy between Granites and Vulcanic concretions, p. 41. Parallel rtrata of Granite 
near the top of St. Gothard, p. 422. 
Granitello, an inferior kind of Granite, which abounds in fome parts of France and 
Italy, p. 9. The bulk of the Euganean hills principally confirts of it, ibid. The 
Granitello of Monte Rortb contains common lava, p. 36. Orbicular and laminated 
form of the Granitello of the Euganean hills, p. 40. 41. 
Guettard, M. his principle, that all vulcanic materials obfervable In calcareous countries 
are adventitious, refuted, p. 43. 
Gun-ptrvoder. Air produced by its explofion, p. 393. 
Gymnotus EleHricus^ or -eleclrlcal 'Cel, experiments and obferratlons on, p. 94. E *1 
fickened by change of climate, ibid. Kept in a large velTel, and the experiments made 
while the-filh was in the water, p. 93. Two perfons, not in contafl:, receive an elec- 
trical fliock through the water, ibid. Powers greatly fuperior to the torpedo, ibid. 
Caught in the province of Guiana, weftwardof Surinam, ibid. The gv’mnotus has the 
power 
