346 



Equilibrium of Liquids. 



No. 52532 



52 533. 1 : 10. 



[52534. 1:10. 



52 536. 1 : 9. 



52 542. 1 : 6. 



52 544. 1 : 8. 



52.532. Glass Bell with lead weight, for determining volume of gases, for preceding Displacing 

 Apparatus, cf. Fig. 52,534 



52.533. Displacing Apparatus, as suggested by Eebenstorff, large pattern, for pieces to 1 kg 

 weight, with 1000 ccm measuring glass, Figure 



52.534. Large Glass Bell with lead weight, for volume determinations of gases, Figure 



52.535. Measuring Cylinder for 200 ccm, for accurately measuring small pieces 



52.536. Burette with Communicating Vessel, after Miihlenbein, Figure, for determining 

 the sp. gravity of solids (Ztschr. f. d. phys. u. chem. U. 7, 1893/94, p. 23; Fr. phys. 

 Techn. I, 2, Fig. 2304), with 3 test pieces of lead, brass and iron, each 150 g weight 



Before starting the experiment the glass vessel is sunk until the coloured water contained in it 

 is at zero both in the glass tube and the observation tube; the body is then immersed and the liquid 

 surface is prevented from rising, by raising the glass vessel, until the meniscus is again on the mark 

 in the observation tube. The water displaced is now in the burette and the volume of the body can 

 be read direct in ccm. It is now only necessary to divide the absolute weight of the test body, in 

 grams, by the volume in ccm, in order to get the sp. gravity. 



Overflow Vessels: see Nos. 51,746 51,748, p. 250. 



Displacing Bodies. 



List No. 52,537 



Adjusted at 15 C. 

 Displaces 5 g 



0. 4. 



52.542. Hydrometer, after Nicholson, Figure, of brass, with wide tube for obtaining con- 

 siderable buoyancy, and with arrangement for determining the specific gravity of solids 

 lighter than water; also suitable for determining the sp. gravity of liquids (M. P. I, 

 Fig. 392 [383]; Fr. phys. Techn. I, 2, Fig. 2408) 



52.543. idem, of glass 



52.544. - - idem, after Tralles (W. D., Fig. 118 [107]), Figure 



52.545. - - idem, after Fahrenheit, Hydrometer for liquids (Gan.-Akt.-Eein., Fjg. 102), 

 with glass cylinder 



52.546. 2 Hydrometers, after Baume, for light and heavy liquids respectively 



. d. 



0. 5.0 



2. 8.0 



0. 6.0 



0. 2.0 



2. 0.0 



52.547. 2 Hydrometers for heavy and light liquids, simple pattern, with glass cylinder, Figure, 

 the scale of the first is from 0.7 1.0 and of the second 1.0 to 2.0 



52.548. Hydrometer of high Sensitivity, Figure, with marks for density 1.000, 1.001 and 

 1.002, for demonstrating the different densities of pure water and of salt solutions, with 

 unscrewable mercury bulb 



0.16.0 



0. :>. o 



1. o.o 



0. 5. 

 0. 3. 



0. 4.0 

 0.15.0 



(I. :il>44, 3644, 782, 702, 5773. 



