The value of Dalton's generalizations can hardly be overestimated, notwithstanding the fact that in several cases they needed correction.
The importance of the general conclusions above formulated, as imposing a limit upon our powers of direct observation, can hardly be overestimated; but there has been in some quarters a tendency to ascribe to it a more precise character than it can bear, or even to mistake its meaning altogether.
The differences of level between different parts of the geoid have been greatly overestimated in the past; F.
American scientific enterprise, mainly in very deep water, though in a few instances he overestimated under the guidance of Professor Alexander Agassiz, has been the depth by failing to detect the moment at which the lead active in the North Atlantic and especially in the Pacific Ocean, touched bottom.
That the religious elements in the Reformation have been greatly overestimated from a modern point of view can hardly be questioned, and one of the most distinguished students of Church history has ventured the assertion that " The motives, both remote and proximate, which led to the Lutheran revolt were largely secular rather than spiritual."
This disadvantage, however, is often overestimated since in most cases other means of uniting two pieces are available.
If these results are confirmed and the treatment can be worked commercially, the importance to agriculture of the discovery cannot be overestimated; each plant will provide, like the bean and vetch, its own nitrogenous manure, and larger crops will be produced at a decreased cost.
If, therefore, these are original works rather than translations, and contain facts and doctrines which are not to be found in the Arabian Jaber, it follows that, on the one hand,the chemical knowledge of the Arabs has been overestimated and, on the other, that more progress was made in the middle ages than has generally been supposed.