402 



Motion of Gaseous Bodies. 



53 033. 1 : 5. 



53034. 1:7 



53031. 1 : 10. 



53032. 1 : 14. 



53035. 1 : 6. 



53038. I : 4 



53.031. Standing Barometer in receiver 85 cm high, with iron base, F i g u r e (\\ '. I). Fig. lf.7 * 

 [153]), filled 1. 14. 



53.032. Receiver with Barometer and Manometer, Figure, the barometer with charge . o. 12.0 



Auxiliary Apparatus for Air Pumps. 



53.033. Glass Sphere for weighing air, Figure, with two stopcocks, 120 mm diameter 



(W. D. Fig. 154 [168]) 0. Id. 



53.034. Two Glass Spheres of 200 mm diameter, for determining the specific gravity of air, 

 one of these being provided with foot for standing on the air pump, also with hook 



and tare pan, Pigu re (M. P. Ill, Fig. 91 [IT, 2, Fig. 85]) 1. 10. 



53.035. Magdeburg Hemispheres, Figure, 100 mm diameter, of iron, with brass stopcock 

 and ground base 0. 



53.036. -- idem, 120 mm diameter 1. 



53.037. - - i d e m, 200 mm diameter 1 . 



53,038. Dasymeter (Baroscope), small, Figure (W. D. Fig. !<!> [155]) 



Dasymeters Nos. 53.03s und 53,039 are for use with Receiver No. 53,012, and I>;i*vnietei- No. .Vi.o-lii 

 with Receiver No. 53,015; for No. 53,038 No. 53,011 suffices, tmt the hirjrer receiver is pivtei ulile. 



53,0311. - idem, larger, Figure 0. 



53.040. -- idem, very large, for very large Air Pumps 1. 



53.041. Dasymeter (Baroscope) after Prof. Friedr. ('. (i. Midler, Figu re, with pointer and 



scale, globe about 200 ecm (Miiller, Techn. d. phys. 1'iiteir., llioti. Fig. S7) .... 0. 



Smallest receiver that can be used: No. 53.011 0. 



52,794. Demonstration Aneroid Barometer, see Fig. 52,794, p. 375 



52,791. Bourdon Tube, si>e Fig. 52,791, p. 375, for explaining the principle of the Spring Mano- 

 meter and of the Aneroid Barometer, on base, with scale and pointer 1. 



in. H 

 o. o 



HI. 

 HI. 



12. 

 H. H 



IS. 

 :j o 



Hi. (I 



Cl. SS.Vi. 117(1. 



!ii;i. ..714. :!: 



