At the end of this trying hunt he was far from well, and was unable to ride, so he had to tramp the whole way to the Nile on foot. Arrived at Rumbek the medical officer there discovered the cause of his ill-health, so, as soon as he arrived in England he saw Mr. Freyer, who recommended an operation. "I got over the operation," he writes to Abel Chapman, "wonderfully well, and simply healed up like a dog. In fact, I was the record case for healing up in ten years amongst Freyer's patients." I went to see him in a nursing home in London, and heard all about his Lado trip, which was rather a sore subject with him, but, with his usual determination, he was only full of ideas to go back again and make a success the next time. In August we both went again to Swythamley, as the guests of young Sir Philip Brocklehurst, and had a very pleasant time amongst the grouse on the Derbyshire hills. Afterwards Selous stayed for a time in the Isle of Wight, with his wife and boys, and later in the autumn he travelled to Turin Exhibition of hunting and shooting, as one of the British jurors. Later in 1911 Selous again left for British East Africa, to go on another hunt to the Gwas N'yiro river, with his friend MacMillan. Before leaving he wrote to President Roosevelt, intimating that he feared he was now too old for the hard work entailed by African hunting, which called forth the following comfortable advice (Sept. 11th, 1911). "MacMillan lunches here Thursday. I am very glad you are going out with him to Africa. He is a trump! I am rather amused at your saying that you will not take any risks with lion now, and that you do not think your eyes are very good. I would not trust you!--seriously. I always wished to speak to you about the time that you followed the lioness which crouched in a bush, and then so nearly got Judd, who was riding after you. I think you were taking more of a chance on that occasion than you ought to have taken. It is not as if you had never killed a lion, and were willing to take any chance to get your first specimen. That I could quite understand. But you have killed a great many, and you ought not to do as poor George Grey did last year, and get caught through acting with needless recklessness.[62] I know you will not pay any heed to this advice, and, doubtless, you regard me as over-cautious with wild beasts, but, my dear fellow, at your age and with your past, and with your chance of doing good work in the present and future, I honestly do not think you ought to take these risks unless there is some point in doing so.