2. Mercury, 3 oz.; powdered resin, 3/4 oz.; prepared chalk, 5 oz.; rectified spirit, q. s.; make a paste with the resin and a small quantity of the spirit; add the mercury, which may be extinguished in a short time; then the chalk and alcohol, gradually, so as to keep up the pasty consistence; lastly, add sufficient spirit to dissolve out the resin, wash the powder on a filter, and dry it. Rectified oil of turpentine may be substituted for the spirit.
=Powder, Morison's Ape"rient.= See PATENT MEDICINES.
=Powder of Mugwort, Saccharated.= (Bresler.) Powdered mugwort root, 3 oz.; sugar, 6 oz.; a teaspoonful four times a day in chorea and epilepsy.
=Powder of Mush'room.= _Syn._ PULVIS AGARICI, P. A. ESCULENTI, L. From edible mushrooms, dried by a gentle heat, and then powdered along with a little white pepper, cloves, and mace. Some cayenne is frequently added.
=Powder of Mus'sel.= From the _Mytilus edulis_ (Linn.), or common mussel, in the same way as POWDER OF OYSTER.
=Powder of Myrrh (Compound).= _Syn._ PULVIS e MYRRHa COMPOSITUS, L.
_Prep._ (Ph. L. 1788.) Myrrh, dried savine, dried rue, and Russian castor, equal parts, rubbed to powder, and then well mixed. Emmenagogue and antispasmodic.--_Dose_, 12 to 30 gr.
=Powder, Nephritic.= (Fuller.) _Syn._ PULVIS NEPHRITICUS. _Prep._ Powdered roots of smallage and saxifrage, of each 2 dr.; crabs' eyes, 1 dr.; sulphate of potash, 1 dr.; sal prunella, 2 scruples; oil of juniper, 4 drops. Mix.--_Dose_, 20 to 60 gr.
=Powder, Nur'sery.= See POWDER, VIOLET (_below_).
=Powder of Nux Vomica, Compound.= _Syn._ PULVIS NUCIS VOMICae COMPOSITUS; VOGT'S STOMACHIC POWDER. _Prep._ Nux vomica, 18 gr.; ipecacuanha, 24 gr.; rhubarb, 1 dr.; prepared oyster shell, 48 gr.; oleo-saccharum of mint, 1 dr. Mix, and divide into 12 powders.
=Powder, O"piated.= Powder of chalk with opium.
=Powder, Opiated Guaiacum.= (Pareira.) _Syn._ PULVIS GUAIACI OPIATUS.
_Prep._ Guaiacum, 1 dr.; orange leaves, 1/2 dr.; acetate of morphia, 3/4 gr. Mix, and divide into 6 powders. One every two hours in articular rheumatism.
=Powder of Oys'ter.= _Syn._ PULVIS OSTRae, L. _Prep._ From the common oyster (_Ostrea edulis_--Linn.), pulped through a sieve, made into a paste with wheaten flour and a little salt, and then rolled out into thin pieces, and dried; these are reduced to powder, sifted, and packed in well-corked bottles. Used to make sauce; about 1 oz., to water, 1 pint.
Other shell-fish are treated in the same way.
=Powder of Oxide of Zinc with Starch.= (Cazenave.) _Syn._ PULVIS ZINCI OXYDI CUM AMYLO. _Prep._ Starch, 1 oz.; oxide of zinc, 1 dr.; camphor, in powder, 1 dr. For excoriations and bed-sores.
=Powder, Parturifacient.= (E. Ph. 1744). _Syn._ PULVIS AD PARTUM. _Prep._ Borax, 4 dr.; castor, 1-1/2 dr.; saffron, 1-1/2 dr.; oil of cinnamon, 8 drops; oil of amber, 6 drops. Mix.--_Dose_, 20 to 30 gr. (This name, and also that of PULVIS PARTURIFACIENS, has been given to powdered ergot.)
=Powder, Pea.= _Syn._ PEA FLOUR; FARINA PISORUM, L. _Prep._ From peas, in the usual manner. Used to make extemporaneous pea-soup.
=Powder, Pearl.= _Prep._ From pure pearl white and French chalk (scraped fine by Dutch rushes), equal parts; triturated together, Some makers add more French chalk. Used as a skin cosmetic. This mixture is preferable to pearl white alone, from being more adhesive.
=Powder, Pease.= _Prep._ From dried mint and sage, of each 4 oz,; celery seed and white pepper, of each 1/2 oz.; turmeric powder, 1/4 oz.; reduced to fine powder. Used as a condiment and kitchen-spice.
=Powder, Pec'toral.= See POWDER OF LIQUORICE, &c.
=Powder of Phosphate of Lime, Saccharated.= _Syn._ PULVIS CALCIS PHOSPHATIS, SACCHARATUS. _Prep._ Precipitated phosphate of lime, 15 gr., white sugar, 85 gr.; triturate and divide into 20 packets. Two or more powders daily, according to age of child. In rickets.
=Powder, Piles.= _Syn._ PULVIS ANTIHaeMORRHOIDALIS, P. HaeMORRHOIDALIS, L.
_Prep._ 1. (Fr. Hosp.) Precipitated sulphur, 3 oz.; cream of tartar and black pepper, of each 1 oz.; oil of cubebs, 1/2 dr.--_Dose._ A teaspoonful, in milk or honey, thrice a day.
2. (External.)--_a._ From Aleppo galls, in very fine powder, 2 oz.; opium, in fine powder, 1 dr. A pinch to be applied occasionally.
_b._ From sesquioxide of iron, 1 oz.; powdered acetate of lead, 1/2 dr. As the last.
=Powder of Pitch, Compound.= _Syn._ PULVIS PICIS COMPOSITUS; DISINFECTING POWDER OF CORNE AND DEMAUX. 100 parts of plaster of Paris are triturated thoroughly with 1 to 5 parts of coal tar. Used as an absorbent and disinfectant to fetid ulcers and wounds.
=Powder, Plate.= _Syn._ PULVIS PRO ARGENTO, L. _Prep._ 1. Jeweller's rouge, 1/4 lb.; prepared chalk or levigated burnt hartshorn, 3/4 lb.; mix.
2. Levigated putty powder, 1/4 lb.; burnt hartshorn, 1/2 lb.; prepared chalk, 1 lb.; rose pink, 1 oz.
3. (MERCURIAL.) From quicksilver with chalk, 1 oz.; prepared chalk, 11 oz.; mix. Used to clean and polish plate. See PLATE.
=Powder, Plate Boiling.= _Prep._ From cream of tartar, common salt, and alum, equal parts. A little of this powder, added to the water in which plate is boiled, gives to it a silvery whiteness.
=Powder, Plummer's Al'terative.= See ANTIMONY, ETHIOPS OF.
=Powder, Poul'tice.= _Syn._ PULVIS PRO CATAPLASMATE (Ph. D. 1826), L.
_Prep._ From linseed meal, 1 part; oatmeal, 2 parts; mixed together.
=Powder, Purgative and Anthelmintic.= (Boerhaave). _Syn._ PULVIS PURGANS ANTHELMINTICUS. _Prep._ Jalap, 12 gr. (or agaric, 8 gr.), Ethiops mineral, 12 gr.; for one dose.
=Powder of Quinine, Aerated.= (Dr Meireu). _Syn._ PULVIS QUINIae AERATUS.
_Prep._ Tartaric acid, 15 gr.; disulphate of quinia, 1-1/2 gr. Mix, and add bicarbonate of soda, 18 gr.; refined sugar, 30 gr. Mix for one dose, between the fits of intermittent fever.
=Powder of Quinine and Tobacco.= (Hug.) _Syn._ PULVIS QUINIae SULPHATIS ET TABACI. _Prep._ Disulphate of quinine, 12 gr.; snuff, 1 oz. To be used as a snuff for nervous headaches.
=Powder, Rat.= See RATS.
=Powder of Rhu'barb (Compound).= _Syn._ GREGORY'S MIXTURE, GREGORY'S POWDER; PULVIS RHEI COMPOSITUS (B. P., Ph. E. and D.) L. _Prep._ 1. (Ph.
E.) Calcined magnesia, 1 lb.; rhubarb, 4 oz.; ginger, 2 oz. (all in fine powder); mix, and preserve it from the air.
2. (B. P., Ph. D.) Calcined magnesia, 6 oz.; rhubarb, 2 oz.; ginger, 1 oz.
3. Calcined magnesia, 8 oz.; rhubarb, 3 oz.; chamomile, 2 oz.; ginger, 1 oz.
_Obs._ An excellent stomachic, antacid, and laxative.--_Dose_, 20 gr. to 1/2 dr. Some druggists substitute the heavy carbonate for the calcined magnesia ordered above, but this alters the nature of the preparation, and requires the dose to be increased. Heavy calcined magnesia may, however, be employed with advantage.
=Powder, Sach'et.= See SCENTED POWDERS.
=Powder, Saline' (Compound).= _Syn._ PULVIS SALINUS COMPOSITUS (Ph. E.), L. _Prep._ (Ph. E.) Pure chloride of sodium and sulphate of magnesia, of each 4 oz.; sulphate of potash, 3 oz.; each separately dried by a gentle heat, and pulverised, then triturated together, and preserved in well-closed vessels. An excellent saline purgative.--_Dose_, 2 to 6 dr., in 1/2 pint of water or table-beer, in the morning, fasting.
=Powder of Scammony (Compound).= _Syn._ PULVIS SCAMMONII COMPOSITUS (B.
P., Ph. L., E., & D.), L. _Prep._ 1. (Ph. L.) Scammony and hard extract of jalap, of each 2 oz.; ginger, 1/2 oz.; rub them separately to a very fine powder, and then mix them.--_Dose_, 5 to 15 gr.
2. (Ph. E.) Scammony and bitartrate of potassa, of each, in very fine powder, equal parts.--_Dose_, 7 to 20 gr.
3. (Ph. D.) Scammony, in fine powder, 1 oz.; compound powder of jalap, 3 oz.; mix,--_Dose_, 10 to 30 gr.
4. (B. P.) Scammony, 4; jalap, 3; ginger, 1; mix, and reduce to fine powder.--_Dose_, 10 to 20 gr.
_Obs._ The above are favourite cathartics in worms, especially for children. They are commonly sold for basilic powder. (See _above_.)
=Powder of Scammony with Cal'omel.= _Syn._ PULVIS SCAMMONII CUM CALOMELANE, L. _Prep._ From scammony, 1/2 oz.; calomel and white sugar, of each 2 dr. An excellent vermifuge for children.--_Dose._ For an adult, 5 to 20 gr.; for a child, 2 to 8 gr. Sold for basilic powder, to which it approaches nearer in composition than the preceding.
=Powder of Scammony with Soot.= _Syn._ PULVIS SCAMMONII CUM FULIGINE; POUDRE D'AILHAUT. _Prep._ Scammony, 1 dr.; wood soot, 1-1/2 dr.; resin, 2 dr.; mix. _Dose_, 1/2 dr. A once fashionable purgative.