hydrargyrum cum Creta. (Grey Powder.) Dose, 1-5 grs 

 X-3 dgms. 

 33; Prepared Chalk, 66. 



3 Emplastrum Hydrargyri. Mercurial Plaster. 32.8; Olive Oil, 

 1.4; Sublimed Sulphur, 0.2; Lead Plaster, 65.6 



'Pilula Hydrargyri. (Blue Pill.) Dose, 4-8 grs.; 2^-5 dgms 

 (in 1 or 2 pills). 



33; Confection of Roses, 49.5; Liquorice Root, 16.5. 1 gr. mercury in 

 3 grs. 



3 Emplastrum Ammoniaci cum Hydrargyro 

 41. Ammoniacum 164, Olive Oil 1.75, Sublimed Sulphur 0.25. 



Hnguentum Hydrargyri. 48; Lard, 48; Prepared Suet, 3. 

 3 Linimentum Hydrargyri. 33; Strong Solution of Ammonia, 

 11; Liniment of Camphor q.s. (about 55). 



3 Unguentum Hydrargyri Compositum. (Scott's Dressing.) 

 40: Yellow Beeswax, 24; Olive Oil (by weight), 24; Camphor, 12. 



Hydrargyri lodidum Rubrum. Dose, 1/32-1/16 gr.; 2-4 mgms, 

 Mercuric iodide (biniodide). A vermillion crystalline powder. Almost 

 insoluble in water, sparingly in alcohol, freely in ether, and in solutions of 

 potassium iodide. 



3 Unguentum Hydrargyri lodidi Rubri. 4; Benzoated Lard, 96. 



3 Hydrargyri Oleas. Mercuric Oleate. An unctuous substance 

 of a light greyish yellow colour, liable to darken on keeping. 



3 Unguentum Hydrargyri Oleatis. 25; Benzoated Lard, 75* 



2 Hydrargyri Oxidum Flavum. Yellow Mercuric Oxide. A yel- 

 low non-crystalline powder, insoluble in water. 



2 Unguentum Hydrargyri Oxidi Flavi. 2; Soft Paraffin, yellow, 

 98. 



Hydrargyri Oxidum. Red Mercuric Oxide. Orange-red cry- 

 stalline scales or powder. 



^nguentum Hydrargyri Oxidi Rubri. 10;Paraffin Ointment, 

 yellow, 90. 



Hydrargyri Perchloridum. Mercuric Chloride. (Bichloride, 

 Perchloride, Corrosive Sublimate.) Dose, 1/32-1/16 trr.; 2-4 mgms. 

 HgCl2. Heavy colourless crystalline masses, with a highly acrid metallic 

 taste. Soluble 1 in 19 of cold, 1 in 2 of boiling water; 1 in 5 of alcohol; 1 

 in 4 of ether; 1 in 2 of glycerin with trituration. 



liquor Hydrargyri Perchloridi. Dose, 30-60 min.; 2-4 c.c. 

 0.114; Water, 100. 



Hydrargyri Subchloridum. Mercurous Chloride. (Subchlor- 

 ide, Calomel.) Dose, .K-5 grs.; 1/4-3 dgms. 



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