Rowland's Thermometers with the Peris Standard. 



L5 



Column A. 



Column B. 

 Column C. 

 Column D. 



Table IV. 



Observations for Pressure Coefficients. 



Manometer reduced to 0° C. The pressure on the bulb of the 



thermometer = 1 atmosphere — the manometer reading. 

 Thermometer reading, in centimetres on the stem. 

 Means of pairs for manometer reading =0 centim. 

 Observed differences due to the changes in pressure. 



Bauclin 6163. 



12173-3 (3 e = 3-012 cm. 



(5 e = -000247 cm. per mm. mercury pressure, 

 /3 e = 0° -000274 per mm. mercury pressure. 



A. 



B. 



C. 



D. 



centim. 



centim. 



centim. 



centim. 







21-296 







72-38 



21-121 



21-300 



0-179 







21305 







69-71 



21137 



21310 



173 







21-315 







(57-10 



21-153 



21-318 



165 







21-322 







6454 



21-168 



21-326 



•158 







21-331 







6225 



21-183 



21-335 



152 







21-340 







59-77 



21-194 



21-345 



•151 







21-350 







57*59 



21-208 



21-353 



•145 







21-357 







57-72 



21-217 



21-360 



143 







21-364 







57-33 



21-224 



21-369 



•145 







21-374 







58-02 



21-231 



21-376 



•145 







21-378 







57 95 



21-239 



21-381 



•142 







21-385 







5908 



21-242 



21-390 



•148 







21-395 







59-87 



21-251 



21-397 



146 







21-400 







59-83 



21-256 



21-403 



•147 







21-407 







59-64 



21-266 



21-412 



•146 







21-417 







59-58 



21-272 



21-419 



•147 







21-422 







58-13 



21-280 



21-425 



•145 







21-428 







58-98 



21-286 



21-432 



•146 







21-436 







58-98 



21-293 



21-438 



•145 







21-441 







58 88 



21-300 



21-444 



■144 







21447 







1217-33 





3-012 



