Nitrogen Thermometer from Zino to Palladium. 139 



Table VII — ( Concluded ) 



1 



-n * " 



p'(orp ')\p(orp )\ t 



\ 



Standard 



Posi- 



Other elements 



Date 



1NO. 



Elements 



tion 



and positions 



20 Dec. 



133 



1302-40 



1308-33 



1450-03 



H 149501 

 E 14958 | 

 P 14962 y 

 G 14955 | 



C 14882 J 

 H 161561 



4-1 

 4-3 



45 



4-7 



8 



4-1 



a (1), J (2-3) 

 c(6-2), e(7-l) 



Do. 



a 



134 



1372-16 



1378-78 



1550-15 



E 16160 | 

 F 16170 y 

 G 16148 | 

 C 16075 J 



4-3 



4-5 



4-7 

 8 





21 Dec. 135 217-29 



217-27 















(Continued from p. 132.) 



The melting and freezing points of the metals and salts, 

 measured with the various thermoelements used during the 

 investigation, as well as the frequent comparisons of thermo- 

 elements with each other, are too numerous to be published here, 

 especially as they are practically all summarized in Table VIII. 



Table VIII contains the final temperature of each thermo- 

 metric point studied. In the first column is the number of the 

 experiment corresponding to that in Table VII. In the second 

 column is the correction in degrees to be applied to each of the 

 thermoelement readings on the outside of the bulb, integrated 

 from the readings of the auxiliary elements as described on 

 page 119 ; in the third column is given the corresponding cor- 

 rection in microvolts. In the fourth column are the readings 

 of the standard elements on the outside of the bulb, corrected 

 as above mentioned. In the fifth column are the readings of 

 the same thermoelements at the fixed point in question, as 

 obtained in the melting or freezing of metal or salt ; these 

 figures usually represent the mean of a considerable number 

 of determinations. 



In the sixth and seventh columns are the corresponding figures 

 for the element inside of the bulb. In this case, however, no 

 correction has been applied to the reading of the element, 

 since, being located practically at the center of the bulb, it 

 might be expected to represent the mean temperature of the 

 entire volume of the bulb. 



In the eighth and ninth columns are the temperatures of the 

 fixed points derived from the preceding four columns. In the 

 last column is given the weight assigned to each measurement. 

 In assigning these weights the number of standard thermoele- 

 ments used, the amount of variation in p Q , and other incidental 

 variables were taken into consideration. 



As has been pointed out on page 116, the relative weights to 

 . be assigned to the inside and outside elements are different at 



