606 



Heat and Change of State. 



Xo. 55 062 



55 063. 



1 : 10. 



55064. 1:10. 



55 067. 1 : 5. 



* 3* 



55 066. 1:5. 55 069. 1:6. 55 072, 55 074. 1 : 6. 



s. d. 



55,062. Water Hammer (Fr. phys. Techn. I, 2, Fig. 2197 [I. Fig. 371]) 0. 2. 



The water hammer is used, for example, in the following demonstrations: for Shewing Retar- 

 dation of Ebullition; Retardation in Freezing (cooling down of water when freezing, M. T., p. 152), the 

 lowest position of boiling point at low pressure (when warmed with the hand, M. T., p. 157), the Falling 

 of a liquid in vacuo without splitting up. 



.">:>, 063. idem, with constriction and point (Singing Water Hammer), Figure (Fr. phys. 



Techn. I, 2, Fig. 2919) 0. 2. 



55.064. -- idem, after Donney, Figure o. 3. o 



55.065. Pulse Hammer (Fr. phys. Techn. I, 2, Fig. 2916 [I, Fig. 373]), for shewing the boiling 



of ether in vacuo 0. 1. r> 



55.066. Apparatus, F i g u r o, for Shewing that the Boiling Point of Salt Solutions is higher 



than of pure Water, with thermocouple (W. D., Fig. 356 [336]) 0. (i. o 



.").">. oJ7. Apparatus for Determining Boiling Point, Figaro, with thermometer (W. u. Iv. 



]>hy,s. Prakt., Fig. 101), especially for water, ethyl and amyl alcohol 0. 1'2. u 



:>:>.06N. Apparatus for Ebullition under low Pressure at low Temperature (M. P. Ill, Fig. 256 



[II, 2, Fig. 127]) 0. 6. 



.V), <)(><>. Papin's Digester, of brass, on tripod, for l l /. t atmospheres, with safety valve and 



thermometer 2. 0. (I 



\V> *\iM lie picked to hiivc the I'apin Digesters tested officially on receipt of tin- fees ( 1.0.0 

 to 1. 5. 0) for lln- tests. 



.":>. 070. - - idem, with Spring Manometer 70 mm diameter 2. 8. 



.">.">. 071. Papin's Digester, larger, Figu re, of stout brass, for 10 atmospheres, with safety 



valve and thermometer 3.16.0 i 



.">.". 072. - - idem, with Spring Manometer 70 mm diameter 4. .10. o 



Cl .Wli. 1M03, 1881, 

 1784, 4704. 180.'.. 



