For the discussion about "Life," the three sections of Physiology, Zoology, and Botany were combined. Professor Moore stood stoutly for the older views, and "believed that he could demonstrate a step which connected inorganic with organic creation." Then he gave an abstruse and highly technical account of a process by which in "solutions of colloidal ferric hydroxide, exposed to strong sunlight," compounds could be formed similar to those to be found in the green plant. With a proper grouping of molecules it might be imagined how "colloidal aggregates appeared," and eventually "organic colloids" which "acquired the property of transforming light energy into chemical activity." The speakers who followed seemed to be agreed that, even were such "potentially living matter" to be produced, we should have reached, not the discovery of the secret of life, but only the construction of "its physical vehicle." Professor Hartog strongly protested against the notion that there was "a consensus {97} of opinion among biologists that life was only one form of chemical and physical actions which could be reduced in the laboratory." He wished it to be understood that "the preponderance of weight among scientific men" was opposed to such a position. {98} CONCLUSION It is dangerous to generalise; and, when as in this survey we are attempting to indicate broadly the trend of the thought of an age, we have more than ordinary need to be on our guard lest we should sacrifice truth to the desire for a seeming completeness of logical presentation. For fear, then, of misunderstanding, let it be clearly remembered that in what has been said we have had no wish to suggest that all minds have moved at the same pace, or even in the same direction; but only that certain strong tendencies were observable, which gave colour and character to the mental stream at the particular stages in its course. It is with a full sense of the possibility of exaggeration, and of the necessity of holding the balance even, that we shall now make our final attempt to sum up as concisely as possible what we have been able to gather in regard to the thought-movement of the period we have had under review. There can be no danger of misstatement in saying that, all throughout, the chief thoughts of the time were intensely occupied with {99} the greatest of all questions, those about GOD AND THE WORLD. And, further, it has not been difficult to perceive that there have been three distinct stages in the sequence of these thoughts.