. An introduction to practical pharmacy: designed as a text-book for the student, and as a guide to the physician and pharmaceutist. With many formulas and prescriptions . usual pharmaceutical forms. The lozenges to be described are of two classes:—First Glass.—Those which consist of white sugar combined witha medicinal substance, and made up by the addition of dry ingredients are first to be thoroughly reduced to powderand mixed together ; then beaten in a suitable mortar, with suffi-cient mucilage of tragacanth or gum Arabic to form a tenacious andtolerably firm mass; this mass,
. An introduction to practical pharmacy: designed as a text-book for the student, and as a guide to the physician and pharmaceutist. With many formulas and prescriptions . usual pharmaceutical forms. The lozenges to be described are of two classes:—First Glass.—Those which consist of white sugar combined witha medicinal substance, and made up by the addition of dry ingredients are first to be thoroughly reduced to powderand mixed together ; then beaten in a suitable mortar, with suffi-cient mucilage of tragacanth or gum Arabic to form a tenacious andtolerably firm mass; this mass, being dusted with a little powderedsugar (not starch, which is sometimes used), is to be rolled out upon asuitable board, or marble slab, to the required thickness, previouslyascertained; and then, with a small punch, either round, oval, stel-late, or cordate, to suit the taste of the maker, cut out singly, andlaid away to dry on a suitable tray or sieve. Fig. 162 represents a simple apparatus used for rolling and cut-ting this description of lozenges; the rolling-board is adjusted asfollows : Having a punch of a certain diameter, a small portion of Pig. Board, roller, and punch, for making lozenges. the mass is rolled and cut out, and-its weight ascertained; if it betoo heavy, the cake is rolled thinner, and so on until adjusted to therequired weight; a strip is now tacked on to each side of the board,14 210 PULPS, CONSERVES, CONFECTIONS, ETC. within the range of the roller, and corresponding in thickness withthe cake, so that the roller, when passed over, will reduce the medi-cated mass to the right point. A board arranged in this wayshould be kept for each kind of lozenges, as the weight of differentmaterials varies, and, in adjusting it, a small allowance must bemade for the moisture present in the soft mass, which increases itsbulk. In dividing a mass extemporaneously, it is convenient to rollthe whole out into a square or oblong cake of suitable size, andthen,
Size: 1981px × 1261px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectpharmacy, bookyear185
