SIS •wards, though of less breadth In proportion to their length. — ^The most usual parts of the body, on which these external remedies are calculated to produce speedy relief, -are the calves of the legs, and the soles of the feet} especially with a view to abate pain arising from internal inflammations; to draw catarrhal and rheumatic humours from pai'ts essential to life, towards the lower extremities ; and to de- termine the morbid matter in the small-pox, so as to affect the face with less severity. — In rheumatic tooth and head-achs, the sinapism ought to be applied either to the nape of the neck, or to one of the upper arms ; in inflammations of the chest, between the shoulder- blades j in apopledtic "cases, to the neck, calves of the legs, and soles of the feet ; in malignant putrid or ner'ous fevers, to the arms, thighs, legs. Sec. — ^These domestic remedies are, in the instances before enu- •merated, of greater service than is generally supposed ; and we are convinced from experience, that in the plurality of cases, they are in- finitely more proper, safe, and etK- cacious, than the common llisters of the shops. SiNF.w : See Tekdon. SISKIN, or Fringi/Ia spinus, L. a beautiful bird of passage, which frequents Britain at uncert.iin pe- •riods. Its wings are spotted with yellow, being black at ihe points. —It is found most trequently in the county of Sussex, where it is known under the name of the lar- iey- lird, twriks appearance during the season for sowing that grain. The Siskin is very docile, and may be easily tamed : it is esteem- ed on account of the melody of its hotes ; and, being rather scarce," is sold at a greater price than its song SKA Iji deserves. Although it chiefly sub- sists on the seeds of the fir and pine-trees, and in autumn, on those of thistles and burdock, yet it is also very partial to hop-seeds, committing great depredations ia the gardens of that valuable plant. Hence, we refer tlie proprietors of hop-grounds to the articles Birc- CATCHiNG, and Bird-limu. SIZE, a viscid preparation, con- sisting of the shreds and parings of parchment, leather, or vellum, boiled in water ; after which they are strained. It is employed by various artisans, but principally by- painters and plasterers, who dilute it with a certain portion of water, and lay it on walls, and ceilings, before they are painted, or white- washed. Siich liquor, however^ emits a very disagreeable smell, which continues for .several days, till it be perfedly dry : hence, dif- ferent substitutes have been con- trived, the best of which is obtain- ed from potatoes : See vol. iii. p^ 437. — There are other prepara- tions, known under the names of gold and si/rer size, used by car- vers and gilders, for applying gold or silver leaf to frame-work, as w'ell as to various toys ; and for bur^- nishing glass. The former may be obtained, by first grinding fine bole on a marble stone, addmg a littla beef-suet, and triturating the whole together. Next, some common size is to be dissolved in a double quantity of water, and mixed with the ingredients before mentioned. Si/ver-size may be prepared, b}' grinding small portions of black- lead, and tobacco-pipe-clay (both being previously pulverized), with a little Genoa soap ; after which it is duly incorporated with common size. SKATE, or Raja latis, L. a vo- racious
