OllNAMENTAL GARDEN STKUCTU RKS. 901 oifference in the density of their atmosphere. The most powerful garden jet in Europe is that in the Nymphenburg gardens, near Munich. The water is there forced up the jet bv the direct influence of machinery, without the intervention of a head or reservoir ; and it is found that a column of sis inches in diameter cannot, even there, be raised higher than 90 feet. 1977. Fountains are generally constructed of Stone, combined with cast iron or copper. In the fountain, fig. 1767, the quill which gives the form to the jet is new, having been lately invented by Mr. Rowley ; it is of copper, the double vase with its column is ot cast iron, and the basin containing the water is of stone or white marble. In the very elegant fountain, fig. 1768, which is from the pencil of Mr. Lamb, the whole of the part above the water is of cast iron. 1978. Buiiis, when artificial, are often ridiculous objects, and sometimes highly offen- sive, from their petty mimicry of what, when real, is grand and venerable. Nevertheless, as picturesqie objects, we would in some cases admit of them ; for our motto is, let tastt. be free. Ruins may be introduced where a fitting situation is pointed out by nature, or by tradition or other accidental circumstances ; and also where they can be applied to some useful purpose. Where a ruin does exist, we think it may often be allowable to
