N.I. :,5164. 



Calorimeters. 



617 



55 157. 1 : 4. 



55 158. 1 : 2. 



55.154. Ice Calorimeter after Eeichert, F i g u re , for lecture purposes (Fr. phys. Techn., 

 I, 2, Fig. 3091 [I, Fig. 391]) ' 



55.155. Heating Apparatus for Calorimetric Experiments, after Eegnault (M. P., Ill, Fig. 104 

 [II, 2, Fig. 182]; Gan.-Eein., Fig. 428), with tripod and burner 



55.156. - - idem, after Pfaundler, Figure (W. u. E. phys. Prakt,, Fig. Ill) .... 



55.157. Heating Apparatus after Pettersson, Figure, of copper (W. u. E. phys. Prakt., 

 Fig. 112) 



.Vi.l58. - - idem, after Neumann (Neumann's Tap), with thermometer, Figure (M. P., 

 Ill, Fig. 114 [II, 2, Fig. 192]; W. u. E. phys. Prakt., Fig. 113), very neatly constructed 

 of brass 



Metallic Bodies after Bebenstorff, for determining Specific Heat and proving Dulong und 

 Petit' s Law, calibrated to 10 grammes atomic weight. 



Material Zinc Aluminium Magnesium Tin Cadmium 



List No. 55,159 55,160 55,161 55,162 55,163 



0. 8. 0. 11. 1. 0. 0. 14. 1. 10. 



."i5,l<>4. Semi-cylindrically bent Plates with eyes, of lead, copper and iron, with boiling flask 

 for 1 kg mercury, for determining Specific Heat by the Mixing Method (M. T., p. 148) 



Cl. 1839, 1840, 

 1842, 1843. 



8. d. 



0.15.0 



1. 0.0 

 1. 0.0 



1.13.0 



3.12.0 



. 



0. 12. .0 



1841, 





