_The Air Plant_. Prince Leopold has succeeded in bringing to perfection that extraordinary exotic, the air plant. It is suspended from the ceiling, and derives its nourishment entirely from the atmosphere. _Potato Flour_. The farina, or meal, obtained from potatoes is now regularly sold in the markets of Scotland. It is _stated_ to be quite equal to genuine arrow root; but this is quite a mistake, unless the nutritious properties of arrow root have been overrated. Sir John Sinclair has devoted much of his time to the preparation of the flour; but as we gave his process many weeks since, it is not necessary to repeat it here. * * * * * Kynaston's Cave. [Illustration] We are indebted to the portfolio of an interesting lady correspondent for the original of the above engraving. The ingenious draughtswoman states the drawing to have been taken during a recent tour; and our readers will allow it to be _fair sketch_. By way of rendering it unique, we append the following description from the same fair hand:-- From Shrewsbury to the Ness Cliff, (on the road to Ceriogg Bridge,) there is in the scenery little worthy of remark, until we approach the latter place, when the cliff on the right hand, and the Brathyn mountains (Montgomeryshire) on the left of the traveller, produce a very picturesque effect; and the post-house of Ness Cliff commands an extensive and lovely view of mountainous and champagne country. At this place we were invited to see a curious cave cut in the rock, which was, in the sixteenth century, the residence of one Humphrey Kynaston, a notorious bandit. This, however, was not his own work, since Ness Cliff, having been worked as a quarry, the cave, either by accident or design, was wrought by the labourers, and used by them as _salle à manger_, dormitory, or tool-house, according to circumstances. We proceeded to it by a broad rising walk of red sand, delightfully wooded, and presenting an enchanting view of the Brathyn and Wrekin, as well as the country for some miles round. At the end of this walk is a gate, which opens into a small grove; proceeding a little into which, we saw the cave in the high red cliff immediately before us. We ascended by a considerable flight of narrow and rugged steps cut from the solid rock: the interior of this curious place is as black as a coal-mine, and a partition, more than half the way across, divides the part where Kynaston used to reside by day from that in which he slept and _kept his horse_, for he had actually the ingenuity to make the animal ascend and descend the stairs above-mentioned. The robber's initials, and the date of the year in which we may suppose he cut them, appear on the partition just opposite the entrance. The romance of the place was not a little augmented by the appearance of its inhabitant, (a blacksmith,) whose tall, thin figure, and whose pale, wild, and haggard countenance, well accorded with the singularity of his abode.