Xo. 52 576. 



Pycnometers. Hydrometers. Densimeters. Comparison Bodies. 



349 



52567. 

 1:4. 



52568. 52569. 

 1:4. 1:4. 



52571. 1:7. 



52570. 

 1 :2. 



52574. 2:5. 



52 572. 1 : 2. 



52,564. 2 Immersion Tubes, after Friedr. C. G. Miiller, for light and heavy liquids respectively ! 

 (M. P., Fig. 63) . . . ' 



U-shaped Tubes: see p. 343. 



51,749. Pycnometer, F i g. 51,749, p. 250, for determining the sp. gravity of solids and 

 liquids; comprising small flask with cover plate ground on, spherical pipette and tripod 

 (W. D., Figs. 58 and 59 [53 and 54]), without glass jar 



52.566. - - idem, with thermometer ground in and graduated tube, Figure, for deter- 

 mining the sp. gravity of liquids (W. and' E. phys. Prakt., Fig. 38) 



52.567. Small Flask, for determining the specif ic gravity of solid bodies soluble in water, but 

 insoluble in alcohol, Figure 



52.568. - - i d e m, for substances insoluble in water, as suggested by Eegnault, Figure 

 (Gan.-Man., Fig. 116) 



s. d. 

 0. 8. 



52.569. - - idem, simple, after Gay-Lussac, for liquids, Figure 



52.570. -- idem, straight pattern, after Eegnault, Figure (Gan.-Man., Fig. 117) . . 



52.571. Pycnometer, after Sprengel, for determining the specific gravity of liquids, Figure 

 (W. u. E. phys. Prakt., Figs. 39 and 40) 



52.572. --idem, Figure, with Thermometer fused in and Glass Cap ground on for 

 accurate measurements (M. P. I, Fig. 391), with filling tube 



0. 3. 



0. 5. 



0. 1. 6 



0. 1. 6 



0. 1. 



0. 1. 



0. 3. 



52,573. 1 Cubic Centimetre, of brass, copper, lead or aluminium. Price, each 



52.574. 12 Cubic Centimetres in case, Figure, of magnesium, antimony, tin, German 

 silver, copper, silver, aluminium, zinc, iron, brass, bismuth, lead (Fr. phys. Techn. I, 

 2, Fig. 2240) 



52.575. 12 Bars, all of same weight (10 g) and same section, in case (Fr. phys. Techn. I, 2, 

 Fig. 2241) 



52.576. 4 Metal Strips, of aluminium, zinc, copper, lead, in case, of equal width, equal thickness 

 and equal weight, the lengths corresponding inversely to the different specific gravity 



0. 9. 6 



0. 3. 



1. 4. 

 1. 6. 

 0. 8. 



Cl. 771,772, 773, 777, 

 5552, 774, 48BO. 



