His particular work upon the intimate constitution of matter had broadened very rapidly in his hands. The drift of his work had been to identify all colloids as liquid solutions of variable degrees of viscosity, and to treat crystalline bodies as the only solids. He had dealt with oscillating processes in colloid bodies with especial reference to living matter. He had passed from a study of the melting and toughening of glass to the molecular structure of a number of elastic bodies, and so, by a characteristic leap into botanical physiology, to the states of resinous and gummy substances at the moment of secretion. He worked at first upon a false start, and then resumed to discover a growing illumination. He found himself in the presence of phenomena that seemed to him to lie near the still undiscovered threshold to the secret processes of living protoplasm. He was, as it were, breaking into biology by way of molecular physics. He spent many long nights of deep excitement, calculating and arranging the development of these seductive intimations. It was this work which his marriage had interrupted, and to which he was now returning. He was surprised to find how difficult it was to take it up again. He had been only two months away from it, and yet already it had not a little of the feeling of a relic taken from a drawer. Something had faded. It was at first as if a film had come over his eyes, so that he could no longer see these things clearly and subtly and closely. His senses, his emotions, had been living in a stirring and vivid illumination. Now in this cool quietude bright clouds of coloured memory-stuff swam distractingly before his eyes. Phantom kisses on his lips, the memory of touches and the echoing vibrations of an adorable voice, the thought of a gay delightful fireside and the fresh recollection of a companion intensely felt beside him, effaced the delicate profundities of this dim place. Durgan hovered about him, helpful and a mute reproach. Trafford had to force his attention daily for the better part of two weeks before he had fully recovered the fine enchanting interest of that suspended work. § 2 At last one day he had the happiness of possession again. He had exactly the sensation one gets when some hitherto intractable piece of a machine one is putting together, clicks neatly and beyond all hoping, into its place. He found himself working in the old style, with the hours slipping by disregarded. He sent out Durgan to get him tobacco and tea and smoked-salmon sandwiches, and he stayed in the laboratory all night. He went home about half-past five, and found a white-faced, red-eyed Marjorie still dressed, wrapped in a travelling-rug, and crumpled and asleep in his study arm-chair beside the grey ashes of an extinct fire.