What Causes Shaking Asp Leaves to be always in a Quiver?—­The wind or vibration of the air only causes the quiver of the aspen leaf.

What is “Sozodont” is Composed of.—­Potassium carbonate, 1/2 ounce; honey, 4 ounces; alcohol, 2 ounces; water, 10 ounces; oil of wintergreen and oil of rose, to flavor, sufficient.

What is Used to Measure Cold below 35 Degrees Fahrenheit?—­Metallic thermometers are used to measure lowest temperatures, alcohol being quite irregular.

Is the Top Surface of Ice on a Pond, the Amount of Water let in and out being the Same Day by Day, on a Level with the Water Surface or above it?—­Ice is slightly elastic, and when fast to the shore the central portion rises and falls with slight variations in water level, the proportion above and below water level being as is the weight of ice to the weight of water it displaces.

Of the Two Waters, Hard and Soft, Which Freezes the Quicker; and in ice Which Saves the Best in Like Packing?—­Soft water freezes the quickest and keeps the best.

Does Water in Freezing Purify Itself?—­It clears itself from chemicals; does not clear itself from mechanical mixtures as mud and clay.

A Receipt to Remove Freckles from the Face without Injury to the Skin.—­A commonly used preparation for this purpose is:  Sulpho-carbolate of zinc, 2 parts; distilled glycerine, 25 parts; rose water, 25 parts; scented alcohol, 5 parts.  To be applied twice daily for from half an hour to an hour, and then washed off with cold water.

What will Remove Warts Painlessly?—­Touch the wart with a little nitrate of silver, or with nitric acid, or with aromatic vinegar.  The silver salt will produce a black, and the nitric acid a yellow stain, either of which will wear off in a short while.  The vinegar scarcely discolors the skin.  A Good Receipt to Prevent Hair Coming Out.—­Scald black tea, 2 ounces, with I gallon of boiling water, strain and add 3 ounces glycerine, tincture cantharides 1/2 ounce, bay rum 1 quart.  Mix well and perfume.  This is a good preparation for frequent use in its effect both on the scalp and hair, but neither will be kept in good condition without care and attention to general health.

Deaths from Diphtheria per 100,000 Inhabitants in the Chief Cities of the World.—­Amsterdam, 265; Berlin, 245; Madrid, 225; Dresden, 184; Warsaw, 167; Philadelphia, 163; Chicago, 146; Turin, 127; St. Petersburg, 121; Bucharest, 118; Berne, 115; Munich, 111; Stockholm, 107; Malines, 105; Antwerp, 104; New York, 91; Paris, 85; Hamburg, 76; Naples, 74; Lisbon, 74; Stuttgart, 61; Rome, 56; Edinburgh, 50; Buda-Pesth, 50; The Hague, 45; Vienna, 44; London, 44; Christiania, 43; Copenhagen, 42; Suburbs of Brussels, 36; City of Brussels, 35.

A Receipt for Marshmallows, as Made by Confectioners.—­Dissolve one-half pound of gum arabic in one pint of water, strain, and add one-half pound of fine sugar, and place over the fire, stirring constantly until the syrup is dissolved, and all of the consistency of honey.  Add gradually the whites of four eggs well beaten.  Stir the mixture until it becomes somewhat thin and does not adhere to the finger.  Flavor to taste, and pour into a tin slightly dusted with powdered starch, and when cool divide into small squares.