Part 472

WAX FOR BOTTLES: See Photography.

WAX, BURNING, TRICK: See Pyrotechnics.

WAXES, DECOMPOSITION OF: See Oil.

WAX FOR IRONING: See Laundry Preparations.

WAX FOR LINOLEUM: See Linoleum.

«Weather Forecasters»

(See also Hygrometers and Hygroscopes.)

I.—It is known that a leaf of blotting paper or a strip of fabric made to change color according to the hygrometric state of the atmosphere has been employed for weather indications in place of a barometer. The following compound is recommended for this purpose: One part of cobalt chloride, 75 parts of nickel oxide, 20 parts of gelatin, and 200 parts of water. A strip of calico, soaked in this solution, will appear green in fine weather, but when moisture intervenes the color disappears. {757}

II.—Copper chloride 1 part Gelatin 10 parts Water 100 parts

III.—This is a method of making old-fashioned weather glasses containing a liquid that clouds or solidifies under certain atmospheric conditions:

Camphor 2 1⁠/⁠2 drachms Alcohol 11 drachms Water 9 drachms Saltpeter 38 grains Sal ammoniac 38 grains

Dissolve the camphor in the alcohol and the salts in the water and mix the solutions together. Pour in test tubes, cover with wax after corking and make a hole through the cork with a red-hot needle, or draw out the tube until only a pin hole remains. When the camphor, etc., appear soft and powdery, and almost filling the tube, rain with south or southwest winds may be expected; when crystalline, north, northeast, or northwest winds, with fine weather, may be expected; when a portion crystallizes on one side of the tube, wind may be expected from that direction. Fine weather: The substance remains entirely at bottom of tube and the liquid perfectly clear. Coming rain: Substance will rise gradually, liquid will be very clear, with a small star in motion. A coming storm or very high wind: Substance partly at top of tube, and of a leaflike form, liquid very heavy and in a fermenting state. These effects are noticeable 24 hours before the change sets in. In winter: Generally the substance lies higher in the tube. Snow or white frost: Substance very white and small stars in motion. Summer weather: The substance will lie quite low. The substance will lie closer to the tube on the opposite side to the quarter from which the storm is coming. The instrument is nothing more than a scientific toy.

WEATHERPROOFING: See Paints.

WEED KILLERS: See Disinfectants.

«Weights and Measures»

«INTERNATIONAL ATOMIC WEIGHTS.»

The International Committee on Atomic Weights have presented this table as corrected:

O=16 H=1 Aluminum Al 27.1 26.9 Antimony Sb 120.2 119.3 Argon A 39.9 39.6 Arsenic As 75 74.4 Barium Ba 137.4 136.4 Bismuth Bi 208.5 206.9 Boron B 11 10.9 Bromine Br 79.96 79.36 Cadmium Cd 112.4 111.6 Cæsium Cs 132.9 131.9 Calcium Ca 40.1 39.7 Carbon C 12 11.91 Cerium Ce 140.25 139.2 Chlorine Cl 35.45 35.18 Chromium Cr 52.1 51.7 Cobalt Co 59 58.55 Columbium Cb 94 93.3 Copper Cu 63.6 63.1 Erbium Er 166 164.8 Fluorine F 19 18.9 Gadolinium Gd 156 154.8 Gallium Ga 70 69.5 Germanium Ge 72.5 72 Glucinum Gl 9.1 9.03 Gold Au 197.2 195.7 Helium He 4 4 Hydrogen H 1.008 1 Indium In 115 114.1 Iodine I 126.97 126.01 Iridium Ir 193 191.5 Iron Fe 55.9 55.5 Krypton Kr 81.8 81.2 Lanthanum La 138.9 137.9 Lead Pb 206.9 205.35 Lithium Li 7.03 6.98 Magnesium Mg 24.36 24.18 Manganese Mn 55 54.6 Mercury Hg 200 198.5 Molybdenum Mo 96 95.3 Neodymium Nd 143.6 142.5 Neon Ne 20 19.9 Nickel Ni 58.7 58.3 Nitrogen N 14.04 13.93 Osmium Os 191 189.6 Oxygen O 16 15.88 Palladium Pd 106.5 105.7 Phosphorus P 31 30.77 Platinum Pt 194.8 193.3 Potassium K 39.15 38.85 Praseodymium Pr 140.5 139.4 Radium Ra 225 223.3 Rhodium Rh 103 102.2 Rubidium Rb 85.5 84.9 Ruthenium Ru 101.7 100.9 Samarium Sm 150.3 149.2 Scandium Sc 44.1 43.8 Selenium Se 79.2 78.6 Silicon Si 28.4 28.2 Silver Ag 107.93 107.11 Sodium Na 23.05 22.88 Strontium Sr 87.6 86.94 Sulphur S 32.06 31.82 Tantalum Ta 183 181.6 Tellurium Te 127.6 126.6 Terbium Th 160 158.8 Thallium Tl 204.1 202.6 {758} Thorium Th 232.5 230.8 Thulium Tm 171 169.7 Tin Sn 119 118.1 Titanium Ti 48.1 47.7 Tungsten W 184 182.6 Uranium U 238.5 236.7 Vanadium V 51.2 50.8 Xenon Xe 128 127 Ytterbium Yb 173 171.7 Yttrium Yt 89 88.3 Zinc Zn 65.4 64.9 Zirconium Zr 90.6 89.9

«UNITED STATES WEIGHTS AND MEASURES»

(According to existing standards)

«LINEAL»

│ Inches. Feet. Yards. Rods. Fur’s. Mile. │ 12 inches = 1 foot. │ 12 = 1 3 feet = 1 yard. │ 36 = 3 = 1 5.5 yards = 1 rod. │ 198 = 16.5 = 5.5 = 1 40 rods = 1 furlong. │ 7,920 = 660 = 220 = 40 = 1 8 furlongs = 1 mile. │ 63,360 = 5,280 = 1,760 = 320 = 8 = 1

«SURFACE—LAND»

144 sq. inches = 1 square foot. │ Feet. Yards. Rods. Roods. Acres. 9 square feet = 1 square yard. │ 9 = 1 30.25 square yards = 1 square rod.│ 272.25= 30.25= 1 40 square rods = 1 square rood. │ 10,890= 1,210= 40= 1 4 square roods = 1 acre. │ 43,560= 4,840= 160= 4= 1 640 acres = 1 square mile. │27,878,400= 3,097,600= 102,400= 2,560= 640

«VOLUME—LIQUID»

4 gills = 1 pint. │ Gills. Pints. Gallon. Cub. In. 2 pints = 1 quart. │ 32 = 8 = 1 = 231 4 quarts = 1 gallon. │

«FLUID MEASURE»

Gallon. Pints. Ounces. Drachms. Minims. Cubic Centimeters.