ible. In a few moments it will begin to turn brown; but it
requires from half an hour to several hours to produce a perfect
print. When it has become dark enough, take it from the frame and put
it into clear water, which must be changed every few minutes until the
yellow part becomes white. Sometimes the veinings will be quite
distinct. By following these directions it is scarcely possible to
fail, and a little practice will make perfect.

TO MAKE LAMP WICKS INDESTRUCTIBLE.

Steep common wicks in a concentrated aqueous solution of tungstate of
soda, and then dry thoroughly in an oven.

TO MAKE DIFFERENT KINDS OF PERFUMES.

BALM OF A THOUSAND FLOWERS.

Deodorized alcohol, one pint; nice white bar soap, four ounces. Shave
the soap when put in; stand in a warm place till dissolved; then add
oil of citronella, one dram, and oils of neroli and rosemary, of each
one-half dram.

FRANGAPANNI.

Spirits, one gallon; oil of bergamot, one ounce; oil of lemon, one
ounce: Macerate for four days, frequently shaking; then add water, one
gallon; orange flower water, one pint; essence of vanilla, two ounces.
Mix.

JOCKEY CLUB.

Spirits of wine, five gallons; orange flower water, one gallon; balsam
of Peru, four ounces; essence of bergamot, eight ounces; essence of
musk, eight ounces; essence of cloves, four ounces; essence of neroli,
two ounces. Mix.

LADY'S OWN.

Spirits of wine, one gallon; otto of roses, twenty drops; essence of
thyme, one-half ounce; essence of neroli, one-quarter ounce; essence
of vanilla, one-half ounce; essence of bergamot, one-quarter ounce;
orange flower water, six ounces. Mix.

UPPER TEN.

Spirits of wine, four quarts; essence of cedrate, two drams; essence
violets, one-quarter ounce; essence of neroli, one-half ounce; otto of
roses, twenty drops; orange flower essence, one ounce; oil of
rosemary, thirty drops; oils of bergamot and neroli, each one-half
ounce. Mix.

If you wish to make a small quantity of any of the above perfumes, use
small quantities of the ingredients, preserving the same proportions.

TO WRITE SECRET LETTERS.

Put five cents' worth of citrate of potassa in an ounce vial of clear
cold water. This forms an invisible fluid. Let it dissolve, and you
can use on paper