The elements of medical chemistry : embracing only those branches of chemical science which are calculated to illustrate or explain the different objects of medicine, and to furnish a chemical grammar to the author's Pharmacologia . epresentedin the annexed figure ; the scale containing the weight willnow preponderate ; add therefore to the scale C, as manygrain weights as may be necessary to restore the equilibrium ;suppose that six grains are necessary for this purpose, thenthis will indicate the amount of the weight lost in the must now divide the real weight of the body in air, vi
The elements of medical chemistry : embracing only those branches of chemical science which are calculated to illustrate or explain the different objects of medicine, and to furnish a chemical grammar to the author's Pharmacologia . epresentedin the annexed figure ; the scale containing the weight willnow preponderate ; add therefore to the scale C, as manygrain weights as may be necessary to restore the equilibrium ;suppose that six grains are necessary for this purpose, thenthis will indicate the amount of the weight lost in the must now divide the real weight of the body in air, viz.] 2 grains, by this loss, 6 grains, which gives us 2 as the spe-cific gravity of the body under examination. 58. In conducting an experiment of this kind, it is desira-ble to obviate every chance of confusion, I am therefore in-duced to recommend to the student a method which I haveusually adopted in registering the different steps of the pro-cess. It consists in drawing a cross, and putting down thevesults at the alternate angles, as represented in the annexeddiagram ; in which it will be seen that the figures are thusat once placed in the most convenient position for the neces-sary operations of subtraction and * Hair is recommended as affording the most convenient mode of sus-pension, because it possesses the greatest strength, with the least bulk toaffect the accuracy of the experiment; and it, moreover, is not liable toabsorb any sensible quantity of water. Where greater strength is re-quired, a single or double horse hair maybe employed.
Size: 1391px × 1797px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectchemistrypharmaceutica, bookyear1825
