Referring first of all his discovery of sensitiveness in plants, he said that in that respect they were akin to the human system. He illustrated this truth by a demonstration of the reaction that takes place in the frog when a shock is communicated and side by side presenting the reaction that is similarly effected in the plant. "Plants have a nervous system like our own," he said, and with the aid of an enlarged illustration of the mimosa he showed the changes that took place when the plant was disturbed. Turning to plant autograph, he spoke of the Resonant Recorder, a special apparatus which he has invented to prove how even plants are tuned to environment. Certain tunes had no effect on plants, he said, while others had and he asked them specially to observe the beautiful and variegated colour formation produced by their response to tunes. He gave an interesting experiment on this point, and both Lord and Lady Willingdon tried it. There was a great outburst of cheering, which was renewed each time the effect was produced, and it was noticed that the cheering, which was vociferous had its own effect. It had taken him a long time, he said, to produce and perfect the complete apparatus to determine the latent mimosa and by the aid of that apparatus, he was able to record the movement of the plant to one thousandth of a second. He next went on to say that all plants were endowed like ourselves, but at first the news was received with great scepticism. He did not despair, however, of success and was continuously engaged in discovering, in collecting fresh evidence. Thanks to the action of the Government of India in sending him on a world tour, he got at last the opportunity to prove before the scientific societies of the world, the truth of his discoveries. An illustration of the Mimosa which has accompanied him in his world tour was screened. The next illustration was to show how long plants took to feel shock and what time they took to recover. Like the great human system plants were subject to periodic conscianimal [_sic._, consciousness?] had their periods of sleep and awakening. The extra water pressure produced during sunset had nothing to do with true sleep. Plants, too, were subject to exaltation and depression and at certain hours of the day they were fully conscious and active while at other hours they were dormant and lazy. He showed by means of a chart that they were fast asleep between 6 and 9 in the morning and his humorous remark that in that respect they had taken a leaf from our modern society ladies provoked a great deal of laughter. A series of records were then shown to illustrate the various degrees of plant consciousness, which were deeply appreciated by the audience.