The American journal of science and arts . there are tenths of grains in thewater and score these also on the board commencing with 5 or 10near the bottom and terminating at 300 at the top—every one ofthese divisions will of course represent a tenth of a grain whichmark as in the sketch. JWanner of using the instrument. Turn the top (a) downwards and unscrewing the cylindrical por-tion of the bottle {efg h) fill the tube with water by the funnel {deh i)and observe the height at which the water stands, then screw on thepart {efg h) and allow the water to fall through the tube into the bottle Ne
The American journal of science and arts . there are tenths of grains in thewater and score these also on the board commencing with 5 or 10near the bottom and terminating at 300 at the top—every one ofthese divisions will of course represent a tenth of a grain whichmark as in the sketch. JWanner of using the instrument. Turn the top (a) downwards and unscrewing the cylindrical por-tion of the bottle {efg h) fill the tube with water by the funnel {deh i)and observe the height at which the water stands, then screw on thepart {efg h) and allow the water to fall through the tube into the bottle New Instrument for Specific Gravities. 265 01 OS 08 0^ 09 09 QL 08 06 001 Oil OSl oei 0^1OS I091Oil081061OOSOlSOSS08SOfS oes 09SOlS 08S 06S •suibjS jo sqjiia^ qOB y^P ST S^Z i-2 £1^- ^285 ^Z73 S^-4, 99-^ €1 S9 ^6 £01- STT- £ST-^ 9£r- £W- 9QI- QOJ-^ €lI-% 9SZ-^ €6T-% 90Z- 91ZA £SZ 9SZ QfZ^ sez^ S9Z % 9lZ-% 98Z- -265 1^255 M5_235 225 215 ^Z05 W-J73 y-165 ^15d 195 -185 -1£5 ^135 ^125 B-115 W-105 ^95 85 75 65 55 §rdL5 85 %-15. 300 tenths of grains. 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 Vol. XVllL—No. 21 34 266 New Instrument for Specific Gravities. the size of which should be so regulated that the water may not onlyfill it but rise a few tenths in the tube, observe the height to which itdoes rise (say 15 tenths.) Reverse the instrument again and whenthe water has returned into the tube, unscrew the portion efgh oncemore and introduce into the funnel shaped portion of the bottle, asmall fragment of the mineral, he. whose sp. gr. is required, havingpreviously taken its actual weight in air, which suppose to be 200tenths. Again screwing on the portion of the bottle efgh turn backthe instrument to its proper position and unscrewing the top (a) toprevent the reaction of confined air observe how high the water nowstands in the tube which suppose to be 115. Now, as before themineral was introduced, the
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Keywords: ., bo, bookcentury1800, bookpublishernewhavensconverse, bookyear1820
