The promulgation of the development theory of species has given a conception of the unity of organic life in the world, which even in its most modified form has an imposing grandeur. Influenced by this, scientific men are naturally concerned to make out, if possible, some connection between inorganic and organic being. To work at this, is part of the inevitable task of science, even though the result should be only to establish the helplessness of science in dealing with it. We have chemical and dynamical theories of life which stimulate repetition of experiments, in the hope that some grand discovery may be made. Those just described present a curious illustration. In the circumstances, we can well understand the persistence with which Dr. Bastian clung to his supposed discovery of the physico-chemical conditions for production of living organism. Science finds in these experiments a fresh lesson of the need for caution, guarding against the hampering influence of popular notions, as in reference to the probable effects of the boiling process. For if the experiments have proved a failure so far as support to a theory of spontaneous generation is concerned, they have revealed a tenacity of life belonging to the lowest microscopic organisms, far beyond higher organic forms, and the consequent weakness of ordinary human devices in struggling against the development of such germs. These experiments also emphasize the need for attention to the laws of rational procedure, as well as to skill in experimental observation, if science is to be exempted from needless toils. Theology has here also a lesson of patience, for it may well leave science to do its own work, undisturbed by apprehensions as to possible consequences to morality and religion. All that the telescope can reveal, and the microscope can make known, through years of experimenting, we wish to have discovered, for only thus shall we come to understand the world's lessons of wisdom and power lying far beyond the range of our unaided vision. All the churches of Christ have reason to hail the extension of scientific knowledge. Those who set high account on patient interpretation of the written Revelation, have reason to value this laborious reading out of the lessons written in the book of Nature.