No wonder he wrote to his wife: "My success in Edinburgh borders on the miraculous. My book is to be published in numbers, containing four birds in each, the size of life, in a style surpassing anything now existing, at two guineas a number. The engravings are truly beautiful; some of them have been colored, and are now on exhibition.... I expect to visit the Duke of Northumberland, who has promised to subscribe for my work.... One hundred subscribers for my book will pay all expenses. Some persons are terrified at the sum of one hundred and eighty guineas for a work,"--nearly a thousand dollars,--"but this amount is to be spread over eight years, during which time the volumes will be gradually completed. I am fêted, feasted; elected honorary member of societies, making money by my exhibition and by my paintings. It is Mr. Audubon here, and Mr. Audubon there, and I can only hope that Mr. Audubon will not be made a conceited fool at last." There was no fear of this. He always remained the modest, earnest, devoted student of nature. He read before the Natural History Society a paper on the habits of the wild pigeon. He says, "I began that paper on Wednesday, wrote all day, and sat up until half-past three the next morning; and so absorbed was my whole soul and spirit in the work, that I felt as if I were in the woods of America among the pigeons, and my ears were filled with the sound of their rustling wings. After sleeping a few hours, I rose and corrected it.... Captain Hall expressed some doubts as to my views respecting the affection and love of pigeons, as if I made it human, and raised the possessors quite above the brutes. I presume the love of the mothers for their young is much the same as the love of woman for her offspring. There is but one kind of love; God is love, and all his creatures derive theirs from his: only it is modified by the different degrees of intelligence in different beings and creatures." With all this attention, his heart was never callous to suffering. "I was sauntering along the streets," he says, "thinking of the beautiful aspects of nature, meditating on the power of the great Creator, on the beauty and majesty of his works, and on the skill he had given man to study them, when the whole train of my thoughts was suddenly arrested by a ragged, sickly-looking beggar boy. His face told of hunger and hardship, and I gave him a shilling and passed on. But turning again, the child was looking after me, and I beckoned to him to return. Taking him back to my lodgings, I gave him all the garments I had which were worn, added five shillings more in money, gave him my blessing, and sent him away rejoicing, and feeling myself as if God had smiled on me."