"The old doctor felt my pulse, evidently thinking of something else the while. 'Good! Good for there,' he mumbled, and then with a certain eagerness asked me whether I would let him measure my head. Rather surprised, I said Yes, when he produced a thing like callipers and got the dimensions back and front and every way, taking notes carefully. He was an unshaven little man in a thread-bare coat like a gaberdine with his feet in slippers, and I thought him a harmless fool. 'I always ask leave, in the interests of science, to measure the crania of those going out there,' he said. 'And when they come back too?' I asked. 'Oh, I never see them,' he remarked, 'and, moreover the changes take place inside, you know.' He smiled as if at some quiet joke. 'So you are going out there. Famous. Interesting too.' He gave me a searching glance and made another note. 'Ever any madness in your family?' he asked in a matter-of-fact tone. I felt very annoyed. 'Is that question in the interests of science too?' 'It would be,' he said without taking notice of my irritation, 'interesting for science to watch the mental changes of individuals on the spot, but...' 'Are you an alienist?' I interrupted. 'Every doctor should be--a little,' answered that original imperturbably. 'I have a little theory which you Messieurs who go out there must help me to prove. This is my share in the advantages my country shall reap from the possession of such a magnificent dependency. The mere wealth I leave to others. Pardon my questions, but you are the first Englishman coming under my observation...' I hastened to assure him I was not in the least typical. 'If I were,' said I, 'I wouldn't be talking like this with you.' What you say is rather profound and probably erroneous,' he said with a laugh. 'Avoid irritation more than exposure to the sun. Adieu. How do you English say, eh? Good-bye. Adieu. In the tropics one must before everything keep calm.' ...He lifted a warning forefinger...'Du calme, du calme. Adieu.'"