Handbook of materia medica, pharmacy, and therapeutics, including the physiological action of drugs, the special therapeutics of disease, official and practical pharmacy, and minute directions for prescription writing / by Sam'l O.L. Potter.

Samuel Otway Lewis Potter

Date:: 1894

Credit: Handbook of materia medica, pharmacy, and therapeutics, including the physiological action of drugs, the special therapeutics of disease, official and practical pharmacy, and minute directions for prescription writing / by Sam'l O.L. Potter. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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$TABLE FOR CONVERTING APOTHECARIES’ WEIGHTS AND MEASURES INTO METRIC. (Adapted from Maisch.) [Multiply all grains, or fractions of a grain, by 6479 (or 648) for the metric equivalent in milligrammes.—Potter.] Troy Weight. Metric Grains. ! Grammes. i Milligramme. 1 BT .001 1 Ttr .0015 1 -STS .002 1 .003 1 .004 1 TJ .005 1 TF .006 1 3 .008 1 T i 3 f 2 3 4 5 6 7 8 9 10 15 20 OJ) 24 26 30 (g ss) 40 50 60 (Si) 100 120 i^i]) 180 240 (5 ss) 300 360 420 480 (5j) 960 (5 9) 1000 Centigramme .010 .016 .02 •03 .05 .065 Decigramme. •13 *.20 .26 •32 •39 •45 •52 •59 .65 Gramme. I.OO 1.30 1.50 1.62 1-95 2.60 2.20 . 3-90 6.48 7.80 11.65 15-50 19.40 2350 27.20 31.10 62.20 64.79 Apothecaries’ Measure. Fluid Grammes or Cubic Centimeters. Liquids Lighter than Water.* Liquids of Specific Gravity of Water.f Liquids Heavier than Water. J i 1 •055 .06 .08 ; 2 .lO .12 •15 3 i .16 .18 .24 i 4 .22 .24 •32 j 5 1 .28 •30 .40 6 •32 •36 .48 7 •38 .42 •55 8 •45 •50 .65 9 .50 •55 •73 10 •55 .60 .80 1 12 •65 •72 .96 ! 15 .80 .90 1.20 ! 16 .90 1.00 1-32 ; 20 1.12 1.25 1.60 25 1.40 1-55 2-00 30 1.70 1.90 2.50 35 2.00 2.20 2.90 1 40 2.25 2.50 3-30 ! 48 2.70 3 00 4.00 50 2.80 3.12 4-15 60 (fgj) 3 40 3-75 5.00 1 65 3.60 4.00 5-30 : 72 4.00 4-50 6.00 80 450 5.00 6.65 90 (fsjss) 5.10 5.60 7-50 i 96 5-40 6.00 8.00 i 100 5.60 6.25 8.30 ; 120 (f.:5ij) 6.75 7-50 10.00 ' 150 (fgijss) 8.50 9-50 12.50. 160 9.00 10.00 13-30 ; 180 (f^iij) lO.IO 11.25 15.00 ! 210 (f 3 iijss) 11.80 13.00 17-50 240 (f^iv) 13-50 15.00 20.00 300 (f^v) 16.90 18.75 25.00 330 (f.^vss) 18.60 20.75 27.50 360 (f^vj) ! 20.25 22.50 30.00 420 (f^vij) 1 23.60 26.25 35-00 480 (f.^j) 27.00 30.00 40.00 540 (f^ix) I 3040 33-75 45.00 600 (f.3 x) 1 33-75 37-50 50.00 72o(f.3xij) . 1 40.50 45.00 60.00 840 (f 3 xiv) 47-25 52.50 70 00 960 (f^ij) 54.00 60.00 80.00 1000 56.00 62.50 83.00 * Lighter than water are tinctures, spirits, compound spirit of ether, sweet spirit of nitre, fixed and '^TSmfa.; wftS'lvi waTefs?hq™uldsd^^ infusions, most fluid extracts, and tinctures made '''I'^He'avier^'than water are syrups, glycerin, a few fluid extracts, and chloroform. Of the latter f aj — grammes 5.50.$