INDEX. 73 



Ergot of rye and wheat, See Rye and Wheat. Observations on, 

 iii. 157 



■ on the origin of, notice of, xx. 189 



Erithric acid, directions for preparing, viii. 373 



Eritrogene, experiments on, xvi. 174 



Erman (M.), experiments and observations of, on a reciprocity of 

 insulating and conducting action, which the incandescent platina 

 of Davy excites on the two electricities, xvii. 369 



Errors in longitude, on the correction of, x. 396 



Escape from fire, notice of a simple one, xiv. 139 



Escapement (dead), for clocks, improved method of constructing, 

 xiv. 334. See Dead Escapement. 



Eskimaux inhabiting the west coast of Greenland, account of, 

 vii. 72. Their first interview with the English, 73. De- 

 scription and representation of an Eskimaux knife, 79. Ap- 

 pearance and dress of the, 81. Description and representation 

 of their sledges, 82. Canoes not known to them, 83. Their 

 habitations and amusements, 85. Superstitions, 86. Ignorance, 

 87. Similarity of their language with that of South Green- 

 land, 89. Vocabulary of Eskimaux and English words, 90. 

 Identity between Eskimaux and Greenlanders, 92 



Eslanite, a new mineral, analysis of, xix. 408 



Ether, observations and experiments on a new acid body, formed 

 from, iii. 77 



(sulphuric), effects of inhaling the vapour of, iv. 158 



account of the acid formed by the slow combustion of, vi. 



318 



■ experiment on, made by the simultaneous application of 



heat and pressure, xvi. 98. Remarks on, 100 

 Ethiop's mineral, new process for preparing, xiii. 225 

 Etna, account of the eruption of, in 1819, xix. 227 

 Etruscan Vases, observations on the manufacture of, xx. 163 

 Euclase, analysis of, viii. 171 

 Eudiometer, notice of a new one, xvi. 374 

 Euler's method of solving a problem relative to the movoa of a 



jKnie^ht, in the game of chess, iii. 72 



