“Plant Responses as a Means of Physiological Investigation ran to 781 pages and detailed 315 separate experiments. These went against an entrenched notion, which Bose thus explained: ‘From the plausible analogy of the firing off of a gun by pulling a trigger, or the action of a combustion engine, it has been customary to suppose that all response to stimulus must be of the nature of an explosive chemical change, accompanied by an inevitable rundown of energy.’ Bose’s experiments, on the contrary, showed him that in plants their movement, the ascent of their sap, and their growth were due to energy absorbed from their surroundings, which they could hold latent or store for future use.”