«Poisonous Mushrooms.»—Symptoms: Nausea, heat and pains in the stomach

and bowels; vomiting and purging, thirst, convulsions, and faintings;

pulse small and frequent, dilated pupil and stupor, cold sweats and

death. Treatment: The stomach and bowels are to be cleared by an emetic

of ground mustard or sulphate of zinc, followed by frequent doses of

Glauber’s or of Epsom salts, and large stimulating clysters. After

the poison is evacuated, either may be given with small quantities of

brandy and water. But if inflammatory symptoms manifest themselves such

stimuli should be avoided, and these symptoms appropriately treated.

A hypodermic injection of 1⁠/⁠62 grain of atropine is the latest

discovered antidote.

Potash.—See Alkali.

Prussic or Hydrocyanic Acid.—See Acids.

«Poison Ivy.»—Symptoms: Contact with, and with many persons the

near approach to, the vine gives rise to violent erysipelatous

inflammation, especially of the face and hands, attended with itching,

redness, burning, and swelling, with watery blisters. Treatment:

Give saline laxatives, and apply weak sugar of lead and laudanum, or

limewater and sweet oil, or bathe the parts freely with spirits of

niter. Anointing with oil will prevent poisoning from it.

«Saltpeter (Nitrate of Potash).»—Symptoms: Only poisonous in large

quantities, and then causes nausea, painful vomiting, purging,

convulsions, faintness, feeble pulse, cold feet and hands, with tearing

pains in stomach and bowels. Treatment: Treat as is directed for

arsenic, for there is no antidote known, and emptying the stomach and

bowels with mild drinks must be relied on.

«Savine.»—Symptoms: Sharp pains in the bowels, hot skin, rapid pulse,

violent vomiting and sometimes purging, with great prostration.

Treatment: Mustard and hot fomentations over the stomach and bowels

and ice allowed in the stomach only until the inflammation ceases. If

prostration comes on, food and stimulants must be given by injection.

«Stramonium, Thorn Apple, or Jamestown Weed.»—Symptoms: Vertigo,

headache, perversion of vision, slight delirium, sense of suffocation,

disposition to sleep, bowels relaxed, and all secretions augmented.

Treatment: Same as for belladonna.

«Snake Bites, Cure for.»—The Inspector of Police in the Bengal

Government reports that of 939 cases in which ammonia was freely

administered, 207 victims have recovered, and in the cured instances

the remedy was not administered till about 3 1⁠/⁠2 hours after the

attack; on the average of the fatal cases the corresponding duration of

time was 4 1⁠/⁠2 hours.

«Strychnine or Nux Vomica.»—The characteristic symptom is the special

influence exerted upon the nervous system, {97} which is manifested by

a general contraction of all the muscles of the body, with rigidity of

the spinal column. A profound calm soon succeeds, which is followed

by a new tetanic seizure, longer than the first, during which the

respiration is suspended. These symptoms then cease, the breathing

becomes easy, and there is stupor, followed by another general

contraction. In fatal cases these attacks are renewed, at intervals,

with increasing violence, until death ensues. One phenomenon which is

found only in poisonings by substances containing strychnine is that

touching any part of the body, or even threatening to do so, instantly

produces the tetanic spasm. Antidote: The stomach should be immediately

cleared by means of an emetic, tickling the fauces, etc. To counteract

the asphyxia from tetanus, etc., artificial respiration should be

practiced with diligence and care. “If the poison has been applied

externally, we ought immediately to cauterize the part, and apply a

ligature tightly above the wound. If the poison has been swallowed for

some time we should give a purgative clyster, and administer draughts

containing sulphuric ether or oil of turpentine, which in most cases

produce a salutary effect. Lastly, injections of chlorine and decoction

of tannin are of value.”

According to Ch. Gunther the greatest reliance may be placed on full

doses of opium, assisted by venesection, in cases of poisoning by

strychnia or nux vomica. His plan is to administer this drug in the

form of solution or mixture, in combination with a saline aperient.

Another treatment is to give, if obtainable, 1 ounce or more of bone

charcoal mixed with water, and follow with an active emetic; then to

give chloroform in teaspoonful doses, in flour and water or glycerine,

every few minutes while the spasms last, and afterwards brandy and

stimulants, and warmth of the extremities if necessary. Recoveries have

followed the free and prompt administration of oils or melted butter or

lard. In all cases empty the stomach if possible.

Sulphate of Zinc—White Vitriol.—See Zinc.

«Tin—Chloride of Tin, Solution of Tin (used by dyers), Oxide of Tin,

or Putty Powder.»—Symptoms: Vomiting, pains in the stomach, anxiety,

restlessness, frequent pulse, delirium, etc. Treatment: Empty the

stomach, and give whites of eggs in water, milk in large quantities, or

flour beaten up in water, with magnesia or chalk.

Tartar Emetic.—See Antimony.

«Tobacco.»—Symptoms: Vertigo, stupor, fainting, nausea, vomiting,

sudden nervous debility, cold sweat, tremors, and at times fatal

prostration. Treatment: After the stomach is empty apply mustard to the

abdomen and to the extremities, and give strong coffee, with brandy and

other stimulants, with warmth to the extremities.

«Zinc—Oxide of Zinc, Sulphate of Zinc, White Vitriol, Acetate of

Zinc.»—Symptoms: Violent vomiting, astringent taste, burning pain in

the stomach, pale countenance, cold extremities, dull eyes, fluttering

pulse. Death seldom ensues, in consequence of the emetic effect.

Treatment: The vomiting may be relieved by copious draughts of warm

water. Carbonate of soda, administered in solution, will decompose the

sulphate of zinc. Milk and albumen will also act as antidotes. General

principles to be observed in the subsequent treatment.

«Woorara.»—Symptoms: When taken into the stomach it is inert; when

absorbed through a wound it causes sudden stupor and insensibility,

frothing at the mouth, and speedy death. Treatment: Suck the wound

immediately, or cut it out and tie a cord around the limb between the

wound and the heart. Apply iodine, or iodide of potassium, and give it

internally, and try artificial respiration.

«ANTIFERMENTS.»

The following are tried and useful formulas:

I.—Sulphite (not sulphate) of lime, in fine powder, 1 part; marble

dust, ground oyster shells, or chalk, 7 parts; mix, and pack tight, so

as to exclude the air.

II.—Sulphite (not sulphate) of potassa, 1 part; new black-mustard seed

(ground in a pepper mill), 7 parts; mix, and pack so as to exclude air

and moisture perfectly. Dose (of either), 1⁠/⁠2 ounce to 1 1⁠/⁠2 ounces

per hogshead.

III.—Mustard seed, 14 pounds; cloves and capsicum, of each, 1 1⁠/⁠4

pounds; mix, and grind them to powder in a pepper mill. Dose, 1⁠/⁠4 to

1⁠/⁠2 pound per hogshead.

A portion of any one of these compounds added to cider, or the like,

soon allays fermentation, when excessive, or when it has been renewed.

The first formula is preferred when there is a tendency to acidity.

The second and third may be advantageously used for wine and beer, as

{98} well as for cider. The third compound greatly improves the flavor

and the apparent strength of the liquor, and also improves its keeping

qualities.

«Anchovy Preparations»

«Extemporaneous Anchovy Sauce.»—

Anchovies, chopped small 3 or 4

Butter 3 ounces

Water 2 ounces

Vinegar 1 ounce

Flour 1 ounce

Mix, place over the fire, and stir until the mixture thickens. Then rub

through a coarse sieve.

«Essence of Anchovies.»—Remove the bones from 1 pound of anchovies,

reduce the remaining portions of the fish to a pulp in a Wedgewood

mortar, and pass through a clean hair or brass sieve. Boil the bones

and other portions which will not pass through the sieve in 1 pint of

water for 15 minutes, and strain. To the strained liquor add 2 1⁠/⁠2

ounces of salt and 2 1⁠/⁠2 ounces of flour, and the pulped anchovies.

Let the whole simmer over the fire for three or four minutes; remove

from the fire, and when the mixture has cooled a little add 4 ounces of

strong vinegar. The product (nearly 3 pounds) may be then bottled, and

the corks tied over with bladder, and either waxed or capsuled.

«Anchovy Paste.»—

Anchovies 7 pounds

Water 9 pints

Salt 1 pound

Flour 1 pound

Capsicum 1⁠/⁠4 ounce

Grated lemon peel 1

Mushroom catsup 4 ounces

«Anchovy Butter.»—

Anchovies, boned and beaten to a paste 1 part

Butter 2 parts

Spice enough

ANTIFOULING COMPOSITIONS: See Paints.

ANTIFREEZING SOLUTION: See Freezing Preventives.

ANTIFRICTION METAL: See Alloys, under Phosphor Bronze and Antifriction

Metals.

«ANTIQUES, TO PRESERVE.»

The best process for the preservation of antique metallic articles

consists in a retransformation of the metallic oxides into metal

by the electrolytic method. For this purpose a zinc strip is wound

around the article and the latter is laid in a soda-lye solution of 5

per cent, or suspended as the negative pole of a small battery in a

potassium cyanide solution of 2 per cent. Where this method does not

seem practicable it is advisable to edulcorate the objects in running

water, in which operation fragile or easily destroyed articles may be

protected by winding with gauze; next, they should be carefully dried,

first in the air, then with moderate heat, and finally protected from

further destruction by immersion in melted paraffine. A dry place is

required for storing the articles, since paraffine is not perfectly

impermeable to water in the shape of steam.

ANTIRUST COMPOSITIONS: See Rust Preventives.

«Antiseptics»

«Antiseptic Powders.»—

I.—Borax 3 ounces

Dried alum 3 ounces

Thymol 22 grains

Eucalyptol 20 drops

Menthol 1 1⁠/⁠2 grains

Phenol 15 grains

Oil of gaultheria 4 drops

Carmine to give a pink tint.

II.—Alum, powdered 50 parts by weight

Borax, powdered 50 parts by weight

Carbolic acid, crystals 5 parts by weight

Oil of eucalyptus 5 parts by weight

Oil of wintergreen 5 parts by weight

Menthol 5 parts by weight

Thymol 5 parts by weight

III.—Boracic acid 10 ounces

Sodium biborate 4 ounces

Alum 1 ounce

Zinc sulphocarbolate 1 ounce

Thymic acid 1 drachm.

Mix thoroughly. For an antiseptic wash dissolve 1 or 2 drachms in a

quart of warm water.

IV.—Ektogan is a new dusting powder which is a mixture of zinc

hydroxide and dioxide. It is equivalent to about 8 per cent of active

oxygen. It is a yellowish-white odorless and tasteless powder,

insoluble in water. It is used externally in wounds and in skin

diseases as a moist dressing mixed with citric, tartaric, or {99}

tannic acid, which causes the liberation of oxygen. With iodides it

liberates iodine. It is stated to be strongly antiseptic; it is used in

the form of a powder, a gauze, and a plaster.

«Antiseptic Pencils.»—

I.—Tannin q. s.

Alcohol, q. s 1 part

Ether, q. s 3 parts

Make into a mass, using as an excipient the alcohol and ether

previously mixed. Roll into pencils of the desired length and

thickness. Then coat with collodion, roll in pure silver leaf, and

finally coat with the following solution of gelatine and set aside to

dry:

Gelatine 1 drachm

Water 1 pint

Dissolve by the aid of a gentle heat.

When wanted for use, shave away a portion of the covering, dip the

pencil into tepid water and apply.

II.—Pencils for stopping bleeding are prepared by mixing:

Purified alum 480 parts by weight

Borax 24 parts by weight

Oxide zinc 2 1⁠/⁠2 parts by weight

Thymol 8 parts by weight

Formalin 4 parts by weight

Melting carefully in a water bath, adding some perfume, and forming

mixture into pencils or cones.

A very convenient way to form into pencils where no mold need be made

is to take a small glass tube, roll a piece of oil paper around the

tube, remove the glass tube, crimp the paper tube thus formed on one

end and stand it on end or in a bottle, and pour the melted solution in

it and leave until cool, then remove the paper.

«Antiseptic Paste (Poison) for Organic Specimens.»—

(_a_) Wheat flour 16 ounces

Beat to a batter with cold water 16 fluidounces

Then pour into boiling water 32 fluidounces

(_b_) Pulverized gum arabic 2 ounces

Dissolve in boiling water 4 fluidounces

(_c_) Pulverized alum 2 ounces

Dissolve in boiling water 4 fluidounces

(_d_) Acetate of lead 2 ounces

Dissolve in boiling water 4 fluidounces

(_e_) Corrosive sublimate 10 grains

Mix (_a_) and (_b_) while hot and continue to simmer; meanwhile stir in

(_c_) and mix thoroughly; then add (_d_). Stir briskly, and pour in the

dry corrosive sublimate. This paste is very poisonous. It is used for

anatomical work and for pasting organic tissue, labels on skeletons,

etc.

«Mouth Antiseptics.»—I.—Thymic acid, 25 centigrams (3 1⁠/⁠4 grains):

benzoic acid, 3 grams (45 grains); essence of peppermint, 75 centigrams

(10 minims); tincture of eucalyptus, 15 grams (4 1⁠/⁠2 drachms);

alcohol, 100 grams (3 ounces). Put sufficient in a glass of water to

render latter milky.

II.—Tannin, 12 grams (3 drachms); menthol, 8 grams (2 drachms); thymol,

1 gram (15 grains); tincture benzoin, 6 grams (90 minims); alcohol, 100

grams (3 ounces). Ten drops in a half-glassful of tepid water.

See also Dentifrices for Mouth Washes.

«Antiseptic Paste.»—Difficulty is often experienced in applying an

antiseptic dressing to moist surfaces, such as the lips after operation

for harelip. A paste for this purpose is described by its originator,

Socin. The composition is: Zinc oxide, 50 parts; zinc chloride, 5

parts; distilled water, 50 parts. The paste is applied to the wound,

previously dried by means of a brush or spatula, allowed to dry on, and

to remain in place five or six days. It may then be removed and a fresh

application made.

Potassium bicarbonate 32.0 grams

Sodium benzoate 32.0 grams

Sodium borate 8.0 grams

Thymol 0.2 gram

Eucalyptol 2.0 c. cent.

Oil of peppermint 0.2 c. cent.

Oil of wintergreen 0.4 c. cent.

Tincture of cudbear 15.0 c. cent.

Alcohol. 60.0 c. cent.

Glycerine 250.0 c. cent.

Water, enough to make 1,000.0 c. centimeters

Dissolve the salts in 650 cubic centimeters of water, and the thymol,

eucalyptol, and oils in the alcohol. Mix the alcoholic solution with

the glycerine and add the aqueous liquid, then the tincture of cudbear,

and lastly enough water to make 1,000 cubic centimeters. Allow to stand

a few days, then filter, adding a little magnesium carbonate to the

filter, if necessary, to get a brilliant filtrate.

This is from the Formulary of the Bournemouth Pharmaceutical

Association, as reported in the Canadian Pharmaceutical Association:

{100}

«Alkaline Glycerine of Thymol.»—

Sodium bicarbonate 100 grains

Sodium biborate 200 grains

Sodium benzoate 80 grains

Sodium salicylate 40 grains

Menthol 2 grains

Pumilio pine oil 4 minims

Wintergreen oil 2 minims

Thymol 4 grains

Eucalyptol 12 minims

«Compound Solution of Thymol.»—

A

Benzoic acid 64 grains

Borax 64 grains

Boric acid 128 grains

Distilled water 6 ounces

Dissolve.

B

Thymol 20 grains

Menthol 6 grains

Eucalyptol 4 minims

Oil of wintergreen 4 minims

Oil of peppermint 2 minims

Oil of thyme 1 minim

Alcohol (90 per cent) 3 ounces

Dissolve.

Mix solutions A and B, make up to 20 fluidounces with distilled water,

and filter.

«Oil of Cinnamon as an Antiseptic.»—Oil of cinnamon in a 9-per-cent

emulsion, when used upon the hands, completely sterilizes them. A 7- to

8-per-cent emulsion is equal to a 1-per-cent solution of corrosive

sublimate and is certainly far more agreeable to use. Oil of thyme in

an 11-per-cent solution is equal to a 7-per-cent solution of cinnamon

oil.

«Green Coloring for Antiseptic Solutions.»—The safest coloring

substance for use in a preparation intended either for internal

administration or for application to the skin is the coloring matter

of leaves, chlorophyll. A tincture of spinach or of grass made by

macerating 2 ounces of the freshly cut leaves in a pint of alcohol for

five days will be found to give good results. If the pure coloring

substance is wanted the solvent should be evaporated off.

«Antiseptic Bromine Solution.»—

Bromine 1 ounce

Sodium chloride 8 ounces

Water 8 pints

Dissolve the sodium chloride in the water and add the bromine. This

solution is to be diluted, when applied to broken skin surfaces, 1 part

with 15 parts of water.

«Substitute for Rubber Gloves.»—Murphy has found that a 4-, 6-, or

8-per-cent solution of gutta-percha in benzine, when applied to the

hands of the surgeon or the skin of the patient, will seal these

surfaces with an insoluble, impervious, and practically imperceptible

coating—a coating that will not allow the secretions of the skin to

escape, and will not admit secretions, blood, or pus into the crevices

of the skin. At the same time it does not impair the sense of touch nor

the pliability of the skin. A similar solution in acetone also meets

most of the requirements.

Murphy’s routine method of hand preparation is as follows: First, five

to seven minutes’ scrubbing with spirits of green soap and running

hot water; second, three minutes’ washing with alcohol; third, when

the hands are thoroughly dried, the gutta-percha solution is poured

over the hands and forearms, care being taken to fill in around and

beneath the nails. The hands must be kept exposed to the air with the

fingers separated until thoroughly dry. The coating is very thin and

can be recognized only by its glazed appearance. It will resist soap

and water, but is easily removed by washing in benzine. The hands can

be washed in bichloride or any of the antiseptic solutions without

interfering with the coating or affecting the skin. If the operations

be many, or prolonged, the coating wears away from the tips of the

fingers, but is easily renewed. For the remaining portion of the hands

one application is sufficient for a whole morning’s work.

The 4-per-cent solution of rubber wears better on the tips of the

fingers, in handling instruments, sponges, and tissues than the acetone

solution.

For the abdomen the acetone solution has the advantage, and it dries in

three to four seconds after its application, while the benzine solution

takes from three to four and a half minutes to make a dry, firm coating.

The preparation of the patient’s skin consists in five minutes’

scrubbing with spirits of green soap, washing with ether, followed by

alcohol. The surface is then swabbed over thoroughly with the benzine

or acetone solution.

The gutta-percha solution is prepared by dissolving the pure

gutta-percha chips in sterile benzine or acetone. These solutions do

not stand boiling, as this impairs the adhesiveness and elasticity of

the coating.

ANTISEPTICS FOR CAGED BIRDS: See Veterinary Formulas. {101}

APOLLINARIS: See Waters.

APPLE SYRUP: See Essences and Extracts.

AQUA FORTIS FOR BRIGHT LUSTER: See Castings.

AQUA FORTIS FOR THE TOUCHSTONE: See Gold.

AQUARIUM CEMENTS: See Adhesives.

AQUARIUM PUTTY: See Putty.

ARGENTAN: See Alloys.

ARMENIAN CEMENT: See Adhesives under Jewelers’ Cements.

ARMS, OIL FOR: See Lubricants.

ARNICA SALVE: See Ointments.

ARSENIC ALLOYS: See Alloys.

ASBESTOS CEMENT: See Adhesives.

ASBESTOS FABRIC: See Fireproofing.

ASPHALT AS AN INGREDIENT OF INDIA RUBBER: See Rubber.

ASPHALT IN PAINTING: See Paint.

ASPHALT VARNISHES: See Varnishes.

ASSAYING: See Gold.

«ASTHMA CURES.»—_Asthma Papers._—I.—Impregnate bibulous paper with the

following: Extract of stramonium, 10; potassium nitrate, 17; sugar, 20;

warm water, 200 parts. Dry.

II.—Blotting or gray filter paper, 120; potassium nitrate, 60; powdered

belladonna leaves, 5; powdered stramonium leaves, 5; powdered digitalis

leaves, 5; powdered lobelia, 5; myrrh, 10; olibanum, 10; phellandrium

fruits, 5 parts.

_Stramonium Candle._—Powdered stramonium leaves, 120; potassium

nitrate, 72; Peruvian balsam, 3; powdered sugar, 1; powdered

tragacanth, 4 parts. (Water, q. s. to mass; roll into suitable shapes

and dry.)

_Cleary’s Asthma Fumigating Powder._—Powdered stramonium, 15; powdered

belladonna leaves, 15; powdered opium, 2; potassium nitrate, 5.

_Asthma Fumigating Powders._—I.—Powdered stramonium leaves, 4; powdered

aniseed, 2; potassium nitrate, 2 parts.

II.—Powdered stramonium, 30; potassium nitrate, 5; powdered tea, 15;

powdered eucalyptus leaves, 15; powdered Indian hemp, 15; powdered

lobelia, 15; powdered aniseed, 2; distilled water, 45 parts. (All the

herbal ingredients in coarse powder; moisten with the water in which

the potassium nitrate has been previously dissolved, and dry.)

_Schiffmann’s Asthma Powder._—Potassium nitrate, 25; stramonium, 70;

belladonna leaves, 5 parts.

_Neumeyer’s Asthma Powder._—Potassium nitrate, 6 parts; sugar, 4;

stramonium, 6; powdered lobelia, 1.

_Fischer’s Asthma Powder._—Stramonium, 5 parts; potassium nitrate, 1;

powdered _Achillea millefolium_ leaves, 1.

_Vorlaender’s Asthma Powder._—Stramonium, 150; lobelia, 80; arnica

flowers, 80; potassium nitrate, 30; potassium iodide, 3; naphthol,

1,100 parts.

«Asthma Cigarettes.»—I.—Belladonna leaves, 5 parts; stramonium leaves,

5 parts; digitalis leaves, 5 parts; sage leaves, 5 parts; potassium

nitrate, 75 parts; tincture of benzoin, 40 parts; boiling water, 1,000

parts. Extract the leaves with the boiling water, filter, and in the

filtrate dissolve the salts. Immerse in the fluid sheets of bibulous

paper (Swedish filter paper will answer) and let remain for 24 hours.

At the end of this time remove, dry, cut into pieces about 2 3⁠/⁠4 by 4

inches, and roll into cigarettes.

II.—Sodium arseniate, 3 grains; extract of belladonna, 8 grains;

extract of stramonium, 8 grains. Dissolve the arseniate of sodium in a

small quantity of water, and rub it with the two extracts. Then soak up

the whole mixture with fine blotting paper, which is dried and cut into

24 equal parts. Each part is rolled up in a piece of cigarette paper.

Four or five inhalations are generally sufficient as a dose.

ASTHMA IN CANARIES: See Veterinary Formulas.

ASTRINGENT FOR HORSES: See Veterinary Formulas.

ATOMIC WEIGHTS: See Weights and Measures. {102}

«ATROPINE, ANTIDOTE TO.»

The usual physiological antidotes to the mydriatic alkaloids from

belladonna, stramonium, and hyoscyamus are morphine or eserine. Strong

tea, coffee, or brandy are usually administered as stimulants. Chief

reliance has usually been placed upon a stomach siphon and plenty of

water to wash out the contents of the stomach. The best antidote ever

reported was that of muscarine extracted by alcohol from the mushroom,

_Amanita muscaria_, but the difficulty of securing the same has

caused it to be overlooked and almost forgotten. Experiments with this

antidote showed it to be an almost perfect opposite of atropine in its

effects upon the animal body and that it neutralized poisonous doses.

«AQUA AROMATICA.»—

Cort. cinnam. chinens 3 parts

Flor. lavandulæ 5 parts

Fol. Menth. pip. 5 parts

Fol. rosmarini 5 parts

Fol. salviæ 10 parts

Fruct. fœniculi 3 parts

Spiritus 70 parts

Aqua 300 parts

Macerate the drugs in the mixed alcohol and water for 24 hours and

distill 200 parts.

«AQUA REGIA.»—Aqua regia consists in principle of 2 parts of

hydrochloric acid and 1 part of nitric acid. But this quantity varies

according to the shop where it is used for gilding or jewelry, and

sometimes the proportion is brought to 4 parts of hydrochloric acid to

1 of nitric acid.

AUTOMOBILES, ANTIFREEZING SOLUTION FOR: See Freezing Preventives.

AXLE GREASE: See Lubricants.

BABBITT METAL: See Alloys.

«Baking Powders»

I.—Tartaric acid, 3 parts; sodium bicarbonate, 1 part; starch, 0.75

part. Of this baking powder the required amount for 500 parts of flour

is about 20 parts for rich cake, and 15 parts for lean cake.

The substances employed must be dry, each having been previously

sifted by itself, so that no coarse pieces are present; the starch

is mixed with the sodium bicarbonate before the acid is added. When

large quantities are prepared the mixing is done by machine; smaller

quantities are best mixed together in a spacious mortar, and then

passed repeatedly through a sieve. Instead of starch, flour may be

used, but starch is preferable, because it interferes with the action

of the acid on the alkali.

II.—A formula proposed by Crampton, of the United States Department of

Agriculture, as the result of an investigation of the leading baking

powders of the market, is:

Potassium bitartrate 2 parts

Sodium bicarbonate 1 part

Cornstarch 1 part

Henley's Twentieth Century Formulas, Recipes and Processes · 第 16 / 139 段