As we write, a paragraph appears in _The Times_, communicated by an observer. 'Having occasion to pass through Whitecross Street on Thursday evening, my attention was attracted to some fine turnips on a coster's barrow. Retaining my boyish fondness for a raw turnip, I at once selected one, and putting my hand into my pocket, paid, as I thought, two halfpence, the price charged. I had scarcely advanced a hundred yards, when a tap on my shoulder caused me to halt; and lo! the woman from whom I had made my last purchase accosted me. "What did you give me?" she said. I told her as above, when she opened her hand and displayed two bright shillings, which I had given her by mistake, and which she now returned. Thanking the woman for her honesty, I rectified the matter, reflecting on my way home that the labours of Lord Shaftesbury and his worthy coadjutors among the costermongers could not have been spent in vain; for the cleanliness, civility, and "honour bright" of these small traders are very evident to those who knew the locality ten years ago.' Our task is ended. We have told all we know about the costermongers, and no doubt much that we have said is not new to many of our readers; but in the way we put it, good may be effected, as shewing the degree of social progress in an industrious and useful class in the metropolis. Donkeys can of course never attain to the beauty, the strength, and the value of the horse. We may admit their inferiority to ponies; but as docile, kept at little expense, and useful in various departments of labour, they have their appointed place in creation. They offer themselves as the poor man's friend and servant. In what numberless cases, as is exemplified by the London costers, might they be employed to meliorate a lot sometimes very hard to bear! We do not bespeak for them more consideration than they deserve. All we expect is that they shall not be treated as abject and worthless. Let us appreciate their unobtrusive willingness to serve to the best of their ability. They ask little, and let that little be conceded. We do not look for elegant turn-outs of donkeys, though we believe the example of a donkey-phaeton has been set by the Baroness Burdett-Coutts, who is never wanting where the welfare of the lower animals is concerned. From our own personal experience, we may tell of employing Donald, our pet donkey, to draw a light four-wheeled phaeton, holding two persons. In bright harness, enlivened with jingling bells, he proceeds on a drive of eight to ten miles with the speed of a quick-trotting pony, and with a cheerfulness which it does one good to look at. W. C. A CAST OF THE NET. THE STORY OF A DETECTIVE OFFICER. IN FOUR CHAPTERS.--CHAPTER I.