( 766 ) 



The columns of the table agree in the main with those of table 

 IX of Comm. N° 78 /j . A and II have the same meaning, C denotes 

 the temperature t l of the piezometer-reservoir in the bath, and the 

 temperatures fab fa c and fad in the order of the parts c7 2a Uu and 

 c7 2c (see § 8) of the glass stem in the cryostat above the bath. The 

 temperatures given in this column are to be considered as constant 

 throughout the determination, and have, therefore, been mentioned 

 only once. D gives the temperature t 4 of the waterbath round the 

 stem b 4 , E the temperatures t 3 ', t z " and t 9 '" of the thermometers 

 placed along the steel capillary. The temperature of the part Uo e 

 that projects above the cryostat is put equal to t' z . The columns F, 

 G and H have the same meaning as in the above mentioned table. 

 In column K the indication of the float in the cryostat has been 

 given. All lengths are in cms. 



These readings are corrected in the same way as was followed 

 for table X of Comm. N°. 78 /j . These corrected values are given in 

 the following table. The two readings of the piezometer have after- 

 wards been united to a mean after reduction. 



