The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley.

  • Beasley, Henry.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The medical formulary : comprising standard and approved formulae for the preparations and compounds employed in medical practice / by Henry Besley. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

    29/542 (page 21)
    Acidum Tannicum. U. S. Tannin or Tannic Acid. Cause washed aether to percolate through powdered nut-galls, in a glass adopter, closed at the lower end with carded cotton. The liquor obtained divides into two portions; pour off the upper layer, and evaporate the denser liquid to obtain the acid. [Astringent. Dose, from 1 to 3 grains.] Acidum Tartaricum. L. Bitartrate of potash Ubiv, boiling dis- tilled water Ciiss, prepared chalk ^xxvf, diluted sulphuric acid Ovij f ^xvij, hydrochloric acid f ^xxviss, or q. s. Boil the bi- tartrate with Cij of water, and add gradually half the chalk; afterwards add the rest of the chalk previously dissolved in the hydrochloric acid, and the remaining water. When settled, pour away the clear liquid, and wash the precipitate with dis- tilled water till it is tasteless; then pour on it the diluted sul- phuric acid, boil for a quarter of an hour, strain, and evaporate the clear liquor, that crystals may form. Redissolve the crys- tals, filter, concentrate the solution, and set it aside to crystal- lize. Repeat this till the crystals become colourless. E. Sub- stantially the same. D. directs 10 parts of the bitartrate, 4 of chalk, 7 of sulphuric acid, 120 of water, and q. s. water of mu- riate of lime. Acidum Valerianicum. Prince L. L. Bonaparte. Distil not less than 40fbs. of valerian root, with 8 times its weight of dis- tilled or rain water; collect the oil in a separatory, continuing the distillation as long as the water is decidedly acid. Agitate the oil with milk of lime, which takes up the acid which it contains; nearly saturate the acid water by milk of lime (first adding that already used, and then fresh); and lastly, add lime water in excess. Concentrate the solution till a pellicle appears, and when cold decompose it by nitric acid in a long narrow flask with a ground stopper; decant the valerianic acid which floats on the surface of the liquid, and distil it with a gentle heat till the distilled liquid ceases to be oily. [Several methods of in- creasing the product of acid have been proposed: as boiling the root with carbonate of soda, and distilling the decoction with an excess of sulphuric acid; also by exposing the distilled water to the air ; or treating it with chromic acid. See Zinci Valeri- anas. The addition of acids to the root in the still contaminates the product with formic and acetic acids.] Aconitina. L. Take of monkshood root, dried and bruised Ibij; boil it in three successive gallons of rectified spirit for an hour, in a retort connected with a cooled receiver,, pouring off the