•496 Prof. A. (Schuster on the Scale' Value of 



Table VI. 



I. 



II. 



III. 



IV. 



V. 



j 



T . 



B 



T -T. 



B > 

 observed. 



T -T 

 B J 



calculated. 



d. 



13-9339 



13-9452 



+ •0113 



+ •0111 



-•0002 



14-2114 



14-2206 



•0092 



•0113 



+•0021 



14-4258 



14-4359 



•0101 



•0115 



+•0014 



14-6885 



14-7005 



•0120 



•0118 



-•0002 



14-9996 



15-0120 



•0124 



•0121 



-•0003 



15-3201 



J 5-3348 



•0147 



•0124 



-•0023 



15-7703 



15-7866 



•0163 



•0128 



-•0035 



16-1221 



16-1399 



•0178 



•0131 



-•0047 



16-5334 



16-5413 



•0079 



•0135 



+ •0056 



16-9247 



16-9383 



•0136 



•0138 



+ •0002 



17-2941 



17-3103 



•0162 



•0142 



-•0020 



17-4847 



174981 



•0134 



•0143 



+•0009 



17-7256 



17-7380 



•0124 



•0146 



+•0022 



18-0034 



180170 



•0136 



•0148 



+ •0012 



18-2883 



18-3015 



•0132 



•0151 



+•0019 



18-5526 



18-5795 



•0169 



•0153 



-•0016 



18-7501 



18-7660 



•0159 



•0155 



-•0004 



19-0095 



19-0186 



•0091 



•0157 



+•0066 



192720 



19-2907 



•0187 



•0160 



-•0027 



195116 



19-5318 



•0202 



•0162 



-•0040 



197012 



19-7174 



•0162 



•0164 



+•0002 



19-9254 



19-9427 



•0173 



•0166 



-•0007 



The figures of this table were reduced in the same way as 

 those of the first series of measurements. If we write 



0V-T, = a + &T 



■B 



B> 



we find by the method of least squares 



a=-'0017, 



&= + -00092 + -00022. 



The values of T B — T ; . calculated by this formula are entered 

 into the fourth column of Table VI. The differences 8 between 

 the calculated and observed values, which are also given, are 

 seen to be as small as can be expected, never rising to more 

 than o, 006. This series having yielded a satisfactory com- 

 parison, we must reduce the scale-values obtained by applying 

 the scale-correction of the Baudin thermometer. Denoting 

 the intervals as read off by the thermometers by the small 

 letter t, the above reductions give 



tj = t B (l- -00092). 

 A small correction is necessitated by the fact that a slight 



