I indulged in no vain illusion; I believed in no miracle; I was quite sensible of the sort of hallucination into which I had fallen; I neither sought to intensify it nor to escape from it.
The indirect geographical elements, which, as a rule, act with and intensify the direct, are mainly climatic; the prevailing winds, rainfall, mean and extreme temperatures of every locality depending on the arrangement of land and sea and of land forms. Climate thus guided affects the weathering of rocks, and so determines the kind and arrangement of soil.
All these causes, and especially the first-mentioned, have enabled the Sla y s to maintain their ethnical purity in a relatively high degree, whereby they have been enabled to assimilate foreign elements and make them intensify or improve the ethnical type, without giving rise to half-breed races.
From this point of view, the desire to intensify the denudation of Palestine and the fate of its remnant, and to look to the Babylonian exiles for the future, can probably be recognized in the writings attributed to contemporary prophets.'
Ammonium nitrate and nitrite, for instance, intensify the action of a water on lead.