604 



Heat and Change of State. 



No. 55 048 



55048. 1:15. 



55049. 1:14. 



55 051. 1 : 3. 



55 052. 1 : 3. 



55053. 1:10. 



55,048. Apparatus for the Tension of Water Vapour, after Watt-Eegnault, Figure, for s (1 

 temperatures from to +50 C. (M. P. Ill, Fig. 254 [II, 2, Fig. 126]; Gan.-Man., 

 Fig. 494; Gan.-Eein., Fig. 345), for readings with the cathetometer 8.10.0 



55,04!i. Apparatus after Gay-Lussac, Figure, for Determining the Tensions of Water 

 Vapour for Temperatures below Zero (M. P. Ill, Fig. 243 [II, 2, Fig. 115]; Gan.-Man., 

 Fig. 492; Gan.-Eein., Fig. 343); with iron stand 2.16.0 



55,050. --idem, Figure, with wood stand and graduation 



2. 4.0 



55,05J. Tube after Lehmann, Figure, for Determining the Vapour Tension of Liquids 



(Fr. phys. Techn. I, 2, Fig. 2781), for connecting lip to the air pump 0. 2. 



55.052. --idem, Figure, with vessels fitting into each other (Fr. phys. Techn. I, 2, 



Fig. 2782) 0. 3. 



55.053. Apparatus after Dalton, Figure, for Shewing that the Tension of Vapours in a gas- 

 filled Space is the same as in Vacuo (diwulson, Lehrb. d. I'hys., Ill, Fig. -11). with 



union tube tor tin- air pump, dropping vessel and barometer tube 2. 1 1. 



55.054. Apparatus for Measuring the Expansibility of Saturated Steam at temperatures of 

 from +42to + 140 ('.. after Eegnault, Figure (M. P. III. Fig. 2:>* [II, 2, Fig. 12!|; 

 Gan.-Man., Fig. 495; Gan.-Eein., Fig. 347), by observing the boiling point at diffe- 

 rent pressures 16.0. (I 



. Apparatus after (lay-Lussae and Theiiard. Figure, for Determining the Tension 

 Of Vapours mixed with Cases (dan. -Man., Fig. 4!S; Gau.-Hein., Fig. 378) t. 0.0 



CI. 1797. 41.17,3417, 

 .021', 5024 2 , 341.".. 



