Jttoiv1and*s Th 



lermo 



meters with the Paris Standard. 



23 



table of these corrections, deduced from the smooth curves, 

 is given in Table VI.. p. 20. 



Next a series of comparisons was made between each 

 Tonnelot thermometer and each Baudin, The results of these 

 comparisons are given in Table VII., p. 21. The readings 

 of the Tonnelot thermometers were reduced to the hydrogen 

 scale, applying all the corrections supplied by the International 

 Bureau, and the corrections mentioned in the last paragraph, 

 required to reduce the readings to those of Tonnelot 11801. 

 Tonnelot 11801. was chosen for this purpose because it was 

 the one which had not been broken. Each of these com- 

 parisons gave a correction-curve, the ordinates of which 

 represented the corrections that must be applied to the 

 readings of the Baudin thermometers, when reduced to the 

 absolute scale, to reduce them to the hydrogen scale, as 

 represented by the Tonnelot thermometers. From these 

 three curves for each Baudin thermometer there was 

 deduced an average correction-curve for each. The ordinates 

 of this final smooth curve for each Baudin thermometer 

 are given in Table VIII. As there were three thermo- 



Tablb VIII. 



Corrections to be added to tlie readings of the Baudin thermometers, 

 when they have been reduced to the absolute scale, to reduce them 

 to the Paris hydrogen scale, as represented by Tonnelot 11801, 

 These corrections are the ordinates of the smooth curves which 

 were deduced from the comparisons given in Table VII. The 

 corrections are given in thousandths of a degree. 



Temp. 



6163. 



6165. 



6166. 



Temp. 



6163. 



6165. 



6166. 



o 



1 



+1 



+ 1 



+2 



o 



21 



4-10 



4-8 



+31 



2 



2 



3 



3 



22 



9 



7 



30 



3 



3 



4 



5 



23 



8 



6 



29 



4 



4 



5 



6 



24 



7 



5 



27 



5 



5 



6 



8 



25 



6 



4 



25 



6 



6 



7 



10 



26 



5 



3 



23 



7 



6 



8 



12 



27 



4 



2 



21 



8 



7 



9 



13 



28 



3 



1 



19 



9 



8 



10 



15 



29 



2 







16 



10 



9 



11 



17 



30 



1 



-1 



13 



11 



9 



11 



19 



31 



- 1 



-2 



10 



12 



10 



12 



21 



32 



- 2 



-3 



7 



13 



10 



11 



23 



33 



- 3 



-4 





14 



11 



11 



25 



34 



- 5 







15 



11 



11 



27 



35 



- 6 







16 



11 



10 



29 



36 



- 7 







17 



11 



10 



30 



37 



- 8 







18 



11 



9 



31 



38 



- 9 







19 



11 



9 



32 



39 



-10 







20 



10 



8 



32 



40 



-11 







