Some Experiments on the Latent Heat of Steam. 49 



ends of these pass through the plate on the calorimeter, 

 and the two plates are clamped tight by steel nuts from 

 the outside. By careful workmanship it is quite possible 



Fig. 3. 



to make a joint of this kind which will stand considerable 

 pressure, when the surfaces are slightly greased, provided 

 that all parts remain at the same temperature ; but it was 

 found impossible to keep such a joint tight when subjected 



