Dr. Hare on the Salt Radical. Theory. 83 
whether simple, like chlorine, bromine, iodine and fluorine, or com- 
pound, like cyanogen. Hence the term hydracid, heretofore confi- 
ned to the haloid compounds of hydrogen, and those formed by this 
element with sulphur and selenium, is to be extended to all the 
hydrated oxacids. Moreover respecting oxacids which are incapa- 
ble of uniting with water as a base, the distinguished lecturer 
holds the following language. “J maintain that they are not 
acids. Do you find any of the characterisire properties of the 
hydrogen acids, in chromic acid, boracic acid, silicic acid, titanie 
id, antimonic acid, or in their combinations with metallic ox- 
ues 2” 
6. The lecturer also uses the following language. “ T'he 
compound which we denominate hydrated sulphuric acid, pos- 
sesses properties analogous to hydrochloric acid.” And again: 
“ Thereis no proof that our conunon sulphuric acid contains water 5 
but we can prove that its chemical character, analogous to that of 
hydrochloric acid, depends, as in that acid, on the presence of hy- 
drogen. We can prove that this hydrogen can be replaced by 
its equivalent of metal.” ; 
»..7. This celebrated author has, in a preceding paragraph, urged 
fF, « 
ity, which bélong both to the hydrated oxacids and the gaseous 
Schanedriaesds? 
the halogen bodies of Berzexius. Neither the latter nor the for- 
mer, while undiluted, are endowed with sourness, nor with the 
of salt and to produce. Common salt, from which the notion of salt first originated, 
being a binary compound of chlorine and sodium, all other binary compounds of 
chlorine, or of any of its congeners which belong to his halogen class, are called 
salts, and the compounds of these double salts, although there are no bodies in na- 
ture more dissimilar in their properties than some of those thus constituted ; as 
for instance the gaseous compounds formed with hydrogen, the volatile liquid and 
fuming chlorides of tin and arsenic, the butyraceous chlorides of zine, bismuth 
and antimony, and such inert chlorides or fluorides as born silver, horn lead, and 
fluor spar. 
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