Benzine
and gasoline will kill bedbugs as fast as they can reach them. A weak
solution of zinc chloride is also said to be an effectual banisher of
these pests.
A Preparation by Which You can Take a Natural Flower and Dip It
in, That Will Preserve It.--Dip the flowers in melted paraffine,
withdrawing them quickly. The liquid should only be just hot enough to
maintain its fluidity and the flowers should be dipped one at a time,
held by the stalks, and moved about for an instant to get rid of
air bubbles. Fresh cut specimens free from moisture make excellent
specimens in this way.
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.
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