Such is Samuel Lancaster's history of the growth and development of his mind. I do not think there is anything more interesting in the 'Pursuit of Knowledge under Difficulties.' His life has been a gallant endeavour to win further knowledge, though too much at the expense of a constitution originally delicate. He pursues science with patience and determination, and wooes truth with the ardour of a lover. Eulogy of his character would here be unnecessary; but, if he takes due care of his health, we shall hear more of him.[11] More astronomers in humble life! There seems to to be no end of them. There must be a great fascination in looking up to the heavens, and seeing those wondrous worlds careering in the far-off infinite. Let me look back to the names I have introduced in this chapter of autobiography. First, there was my worthy porter friend at Coupar Angus station, enjoying himself with his three-inch object-glass. Then there was the shoemaker and teacher, and eventually the first-rate maker of achromatic instruments. Look also at the persons whom he supplied with his best telescopes. Among them we find princes, baronets, clergymen, professors, doctors, solicitors, manufacturers, and inventors. Then we come to the portrait painter, who acquired the highest supremacy in the art of telescope making; then to Mr. Lassell, the retired brewer, whose daughters presented his instrument to the nation; and, lastly, to the extraordinary young schoolmaster of Bainbridge, in Yorkshire. And now before I conclude this last chapter, I have to relate perhaps the most extraordinary story of all--that of another astronomer in humble life, in the person of a slate counter at Port Penrhyn, Bangor, North Wales.