Sugar in 100 parts. Sp. Gr. Deg. Baumé. 0 1·000 0 5 1·020 3 10 1·040 6 15 1·062 8 20 1·081 11 25 1·104 13·5 30 1·128 16·3 35 1·152 19 40 1·177 21·6 45 1·204 24·5 50 1·230 27 55 1·257 29·5 60 1·284 32 67 1·321 35 A fluid ounce of saturated syrup weighs 577½ gr.; a gallon weighs 13½ lb.; its specific gravity is 1·319 to 1·321 or 35° Baumé; its boiling point is 221° F., and its density at the temperature of 212° is 1·260 to 1·261, or 30° Baumé. The syrups prepared with the juices of fruits mark about 2° or 3° more on Baumé’s scale than the other syrups. According to Ure, the decimal part of the number denoting the specific gravity of a syrup multiplied by 26 gives very nearly the number of pounds of sugar it contains per gallon. The preservation of syrups, as well as of all saccharine solutions, is best promoted by keeping them in a moderately cool, but not a very cold place. Let syrups be kept in vessels well closed, and in a situation where the temperature never rises above 55° F. They are kept better in small than in large vessels, as the longer the bottle lasts the more frequently will it be opened, and the syrup consequently exposed to the air. By bottling syrups while boiling hot, and immediately corking down and tying the bottles over with a bladder, perfectly air-tight, they may be preserved even at a summer heat for years, without fermenting or losing their transparency. The candying of syrups may be prevented (unless the syrup be over-saturated with sugar) by the addition of acetic or citric acid, 2 or 3 dr. per gallon. Confectioners add a little cream of tartar to prevent granulation. Syrups may be effectually prevented from fermenting by the addition of a little sulphite of potash or lime; also by the use of salicylic acid in small quantities. Fermenting syrups may be immediately restored by exposing the vessel containing them to the temperature of boiling water. The addition of a little spirit is also good, say about 10 per cent. A solution of sugar prepared by dissolving 2 parts of double refined sugar in one of water, and boiling this a little, affords a syrup which neither ferments nor crystallises. The basis of most mineral water syrups is simple syrup, which is prepared by adding 16 lb. of finest white sugar and the whites of 4 eggs to 1 gal. water; stir until all the sugar is dissolved; simmer over a gentle heat for 2 or 3 minutes; skim well and strain through a fine flannel bag.