406 



Motion of Gaseous Bodies. 



No. 53077 



53077. 1:7. 



53078. 1 : 9. 



60577. 1 : 7. 



60 577 a. I : 8. 



53082. 1:9. 



53083. 1:8. 



60578. 1 : 4. 



53,077. Apparatus after Davy, Figure, for the reflection of heat in vacuo, receiver with 

 two concave mirrors, heating wire and thermometer, for placing on the air pump (Gan.- 

 Rein. Fig. 408) ............. ................... 



3. 3. 



53,078. Apparatus for demonstrating the cooling Action of Gases, Figure, after Tyndall 

 (Tyndall, Warme, Fig. 83), with lateral hose stopcock for leading in gases and a stop- 

 cook connecting with the air pump; for placing on the air pump plate ...... 



60,577. Electric Egg, F i g. 60,577, with stopcock and base, for demonstrating Geissler Tubes 

 (M. P., 9 lh Edn., Ill, Fig. 240) ......................... 



60,577 a. - - i (1 e m, Figure, with holders for taking carbon rods, for demonstrating t In- 

 electric arc .................................. 



60,577 b. - - i d e m, entirely of glass, without holders ................ 



53.082. Receiver with Carbon Rods for producing an electric arc, Figure 



The air pump plate must be 240 mm diameter. 



53.083. Glow Lamp Filament in Receiver, after Hartl, F i g u r e, for showing that the carbon 

 filament docs not burn up in vacuo, but does so easily in air (Ztschr. f. d. phys. u. diem. 

 T. 10, 1897, p. 235) .' ' 



<;<.. ">7S. Geissler Tube, with stopcock and base, for setting on the air pump, Figure. . 



r>.",.oxr>. Electric Cascade, consisting of Stuffing Box Receiver No. 53,018 and rranium Glass 

 (\V. 1). p. X(>9 [807|) 



The air pump plate must be 180 mm diameter. 



1'. (I. (I 

 1. 7.0 



1. 10. 



0. 18. 



1. 12. (I 



0. 15. (I 

 (I. 16. 



0. lit. 



.-.::.<ix<;. Rubber Bladder 0. 2. 6 



53,0X7. Model of a Bellows, Figure, with glass window for demonstrating its mode of 



action 0. it. (I 



53.08S. Bellows, simple construction o. 2. 6 



Cl. 3884, 4117, 4978, 5348, 

 989,4147,990. 



