No. 51 -.. 



Supplies for Warming and Cooling. Gasometers. 



211 



51250. 1:10. 



51 243. 1 : 8. 



51256. 1:12. 



51257. 1:10. 



Sand Baths, Figure 51,243, comprising: sheet metal dish with iron stand, heating coil ad- 

 justable vertically, with gas lead from both sides for obtaining an even flame. 



List No. 51,242 51,243 



Size of Dish cm 25 x 15 40 x 20 



Price 0. 12. 0. 14. 



Calibrated Glass Bells for measuring gas volumes (M. T., Fig. 5), with clamping rings. 



List No. 51,244 51,245 51,246 51,247 51,248 51,249 



Capacity ccm 100 250 500 1000 1500 2000 



Size about cm 220x30 280x40 360x55 450x65 470x75 500x80 



Price 0. 6. 0. 7. 0. 8. 0. 10. 0. 12. 0. 14. 



51.250. Mercury Gasometer, Figure, with double-wall mercury chamber, collecting bell, 

 oak stand, without mercury, for 250 ccm 



51.251. --idem, for 1000 ccm 



51.252. Gasometer (Pepys'), of stout lacquered sheet zinc, Figure, 30 1 capacity . . . 



51.253. - - i d e m, 50 1 capacity 



51.254. --idem, of copper, 30 1 capacity, cf. F i g. 51,252 



51.255. --idem, 50 1 capacity 



51.256. Gasometer, of glass (Mitscherlich'p), Figure, with metal fittings, 15 1 capacity 



51.257. --idem, 25 1 capacity, Figure 



Cl. 5484, 148, 

 146, 3229, 

 3911, 3250, 137, 138. 



S. d. 



: 1. 0. 



1. 5. 



2. 5. 



3. 0. 



3. 0. 



4. 0. 



2. 0. 



3. 0. 



14* 



