No 54910. 



Air Thermometers. 



583 



54 908. 1 : 8. 



54906. 1:14. 



54 909. 



10. 



54910. 1:11. 



54,909. Self-correcting Air Thermometer after Prof. Friedr. C. G. Miiller, Figure (Ztschr. 

 f. d. phys. u. chem. U. 8, p. 308; M. T., p. 139), on metal stand, wood parts of polished 

 mahogany, rules of boxwood and celluloid, all parts most thoroughly constructed . . 



I 1 Hll 



to 



be transported in the filled condition. 



sypkn 



s. d. 



5.10.0 



54,910. - - idem, simplified pattern, Figure, with scale visible at a distance, 1 about | 



12 mm long (M. T., Fig. 97) j 2. 2. 



C'l. 1727,5297, 

 1729, 1730, 5286. 



