The Pharmaceutical era . placerepresents milligrams, then use mGm, as mGm,meaning twenty-seven and five-tenths milligrams, andso on. Equivalents of Metric Quantitiesin the Old Ftanitards.—No onecan become an expert in the metric system until he canthink in it. The attempt to make use of the new systemwhile employing the old standards will surely create con-fusion and end in disappointment. Nevertheless, thereare a few equivalents which are of use, and which mayvery profitably be committed to memory: The Meter Liter Kilogram Gram Centimeter Cubic Centimeter MilliRram Pluidounce Fluidrachm
The Pharmaceutical era . placerepresents milligrams, then use mGm, as mGm,meaning twenty-seven and five-tenths milligrams, andso on. Equivalents of Metric Quantitiesin the Old Ftanitards.—No onecan become an expert in the metric system until he canthink in it. The attempt to make use of the new systemwhile employing the old standards will surely create con-fusion and end in disappointment. Nevertheless, thereare a few equivalents which are of use, and which mayvery profitably be committed to memory: The Meter Liter Kilogram Gram Centimeter Cubic Centimeter MilliRram Pluidounce Fluidrachm Troy Ounce Drachm equals approximately inches. fluid ozs. troy ozs. troy grs. • 2/5 inch. 16 minims. 1/64 troy gr. • Cc. Cc. Gm. The student is advised to thoroughly aciiuaint himself 336 THE PHARMACEUTICAL ERA. [September 9, 1897. Fio. I ScALC or MiU-itjirTwrg. / iiiiimiiiiiiiiiiMiiiiiiiiiiiiiiiMiiiiimMinMiinMimiiiiiiminnniiiiniiiiff UduimumHHimniyuuuuuiliiHlilin. ^70432 IGmI OR 1 ICc >ltti1c Plnpnitt—Coinpari«Ofi of Mn«un^ «»f Lcnjctli. Oiiariijr, Wri|:Iii. with the metric nnits, and their use, before attemptiogto commit the equivalents given above. The committingof rules for the conversion of one system to another, sofrequently given in text books. Is a pure waste of time. PRACTICAL STUDIES. 1. To Find a (riitniid of a Body.—Tic a lack to a the tack into a potato and suspend as in Fig. 6. Theline aa prolonged is the line of direction. Next sus-pend by inserting the lack at b, the line be is now theline of direction. Where these two lines cross is thelocation of the eeutroid. Repeat the experiment, usinga chair, block of wood, box, etc. 2. Practice With Metric Units.—Ising Fig. 7 as a put-tern, cut a jiiece of paper the size of the large « is 1 dM on each side, cir one scjuare dM. Ising thispai>er as a (lattern, nieanure olT with it one meter, on acord or stick, the latter pn-fer
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Keywords: ., bookcentury1800, booksubjectdrugs, booksubjectpharmacy, bookyear1
