TH – VE

The albumen and alum are dissolved in the water and with the solution so obtained the other ingredients are made into a paste. This paste is molded at once in the usual way and when set the articles are exposed in an oven to a heat of 140° F. TEST FOR TRANSFORMER.— Connect a 22 1/2 volt battery in series with a voltmeter and to one of the primary and one of the secondary terminals. If the coils are shorted the reading on the voltmeter will be over 20 volts. Thermometers.— Table Showing the Comparison of the Readings of Thermometers. CELSIUS, OR CENTIGRADE (C). RÉAUMUR (R). FAHRENHEIT (F). [Table of values omitted from body text] Readings on one scale can be changed into another by the following formulas, in which t° indicates degrees of temperature: 9/4 t° R + 32° = t° F (Réau. to Fahr.) 9/5 t° C + 32° = t° F (Cent. to Fahr.) 5/4 t° R = t° C (Réau to Cent.) 4/5 t° C = t° R (Cent. to Réau.) 5/9 (t° F - 32°) = t° C (Fahr. to Cent.) 4/9 (t° F - 32°) = t° R (Fahr. to Réau.) THREAD.— See also Cordage. Dressing for Sewing Thread.—For colored thread: Irish moss, 3 pounds; gum arabic, 2 1/2 pounds; Japan wax, 1/2 pound; stearine, 185 grams; borax, 95 grams; boil together for 1/4 hour. For white thread: Irish moss, 2 pounds; tapioca, 1 1/2 pounds; spermaceti, 3/4 pound; stearine, 110 grams; borax, 95 grams; boil together for 20 minutes. For black thread: Irish moss, 3 pounds; gum Senegal, 2 1/2 pounds; ceresin, 1 pound; borax, 95 grams; logwood extract, 95 grams; blue vitriol, 30 grams; boil together for 20 minutes. Soak the Irish moss in each case overnight in 45 liters of water, then boil for 1 hour, strain and add the other ingredients to the resulting solution. It is of advantage to add the borax to the Irish moss before the boiling. THROAT LOZENGES.— See Confectionery. THYMOL.— See Antiseptics. TICKS, CATTLE DIP FOR.— See Insecticides. TIERCES.— See Disinfectants. TILEMAKERS' NOTES.— See Ceramics. Etching Bath for Tin.— The design is either freely drawn upon the metal with a needle or a lead pencil, or pricked into the metal through tracing paper with a needle. The outlines are filled with a varnish (wax, colophony, asphalt). The varnish is rendered fluid with turpentine and applied with a brush. The article after having dried is laid in a solution of nitric acid for 1 1/2 to 2 hours. It is then washed and dried with blotting paper.