384 



Equilibrium of Gases. 



NU. .V2876 



52 876. 1 : 5. 



52 877. 1:5. 52 879. 1 : 6. 



s. (1. 



52,87<'.. Model of a Force Pump, of glass, with metal stand, Figure 0. 12. o 



52,877. -- idem, nf glass and metal, larger and stouter construction, Figure . . . . 1. It'.. (I 



r>2.H78. --idem, larger and stouter construction, Figure, with brass valves visible 



at a distance, with iron stand; total height: 67 cm; diameter of cylinder: 57 mm . :>. 12. 



ci. nin. a-.'i, 



