We apprehend their reality in exactly the same way as we apprehend the reality of material things--by direct observation.
I lack the evidence furnished by direct observation, but the story is completed of itself.
Though we can scarcely find out by direct observation, we can at least guess.
Direct observation will, I believe, confirm them, so close is their connection with the known facts.
When this resemblance is not obvious to the senses, or ascertainable at once by direct observation, but is itself matter of inference, the conclusion is the result of a train of reasoning.
In other instances the groups of elementary forms as they are shown by direct observation, have been adjudged by many authors [52] to be too large to constitute species.
If we want to know how species originate, it is obviously necessary to have recourse to direct observation.
Experimental researches are limited in their extent, and the number of cases of direct observation of the process of mutation will probably never become large enough to cover the whole field of the theory of descent.
Direct observation or experiments were not available for Darwin and so he found himself constrained to make use of the experience of breeders.
Those productions of nature which are objects of direct observation may be logically distributed in classes, orders, and families.
To direct observation succeeds, although long afterward, the wish to prosecute experiments; that is to say, to evoke phenomena under different determined conditions.
The quantity of snow that falls in extensive forests, far from the open country, has seldom been ascertained by direct observation, because there are few meteorological stations in such situations.
Even if the latter were the case, we should hardly be in a position to learn it by direct observation.
All these hypotheses rest on inferences, not on direct observation.
In the same way the primitive metabolism and the slow, simple growth of these monera would not come within direct observation.
The quantity of snow that falls in extensive forests, far from the open country, has seldom been ascertained by direct observation, because there are few meteorological stations in or near the forest.
We do not know this by direct observation, so long as he is not yet dead.
But if the phenomenon is so complex and extensive as a continuous fall of prices, direct observation or experiment is a useless or impossible method; and we must then resort to Deduction; that is, to indirect Induction.
Direct observation is limited to the effect which any change in a phenomenon (or its index) produces upon our senses; and what we believe to be the causal process is a matter of inference and calculation.
These include every known shock of every description which was either recorded by seismographs or by direct observation in any part of the world.
The only essential point is that when the solar atmosphere is active the storminess of the earth increases, and that is a matter of direct observation.
When this is accomplished, the observer will have at his command faithful representations of any formation, or of any given region he may require, to utilise for the study of the smaller details by direct observation.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "direct observation" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
