122 THE entomologist's record. 



Brachypodium, having almost given up hope of seeing it, when on a 

 terrace beneath us came an unmistakable M. fiyliius. Dropping our 

 food, we stalked it, and I was lucky enough after a while to catch it. 

 We took three more after that, and he came back to Hyeres content. 

 His holiday was then nearly over or he would have been able to take 

 many more. On that same day we got larvae of Frocria ampelojiliaya. 

 When last I saw him, he was so greatly changed in appearance, 

 his hair was quite white, that I did not know him at first, but when 

 he spoke I knew him in an instant, and he seemed much amused at 

 this. We spent the evening together, and he strongly urged me to 

 send a detailed account of the life history of Hes})erin sidoe, of which 

 I had the larvae, to the Entomological Society of London. No 

 opportunity did he ever lose for the increase and advancement of 

 Entomological knowledge. Little did I think it was the last time that 

 I should see him. — 7, Eue Mireille, Hyeres, Var, France. 



HIS WORK AND INFLUENCE. 



By Prof. E. B. Poulton, D.Sc, M.A., F.R.S., F.L.S., F.Z.S., F.E.S., 

 Hope Professor of Zoology in the University of Oxford. 



It has been said, I believe, that genius consists in an infinite 

 capacity for taking pains, and all will agree that power of work is a. 

 most important element in the composition of genius. But in science, 

 at any rate, the power of work is itself the outward expression of an 

 inward intellectual state ; a burning desire to find out, curiosity 

 carried to its highest point. This alone is the motive for beginning, 

 and the inspiration for continuing, all th^ best and the hardest work 

 that has ever been done, or will be done, in science. Darwin, before 

 he was 40, taught his old teacher, Henslow, that this divine curiosity 

 is the true motive-cause of investigation. 



"I believe there exists, and I feel within me, an instinct for truth, 

 or knowledge or discovery, of something of the same nature as the 

 instinct of virtue, and that our having such an instinct is reason 

 enough for scientific researches without any practical results ever 

 ensuing from them."* 



How far J. W. Tutt analysed his own motives — whether, indeed, 

 he did so at all — I do not know ; but few men have shown by their 

 fruits that they possessed in larger measure that " instinct for truth " 

 of which Darwin wrote. 



In spite of the widespread popular conception of the scientific man 

 as a solitary recluse, it is the fact that scientific work, at least in large 

 part, is, and must be, gregarious and co-operative, and, under strong 

 leadership, I believe that it is always better for being so. Hence it 

 follows that the power of inspiring work in others is as important as, 

 or even more important than, the power of doing work ; but the two 

 forces cannot be compared as if they were independent. Only those 

 who can work are able to inspire work, and when the first power is 

 permitted to fall into disuse, the second is almost always enfeebled. 



* From a letter dated April 1st, 1848, More Letters, I., 61. 



