Metals at High Temperatures. 



377 



Table I. 

 Temperature Distribution in the Oven (in Microvolts). 



From center of 





oven. 



gem 



East 



12 



« 



19 



a 



23 



a 



gem 



West 



12 



a 



19 



a 



23 



t< 









Platinum. 









Oven Tube I. 



Oven Tube II. 



250° 



500° 



750° 

 + 17 



1000° 



250° 



500° 



750° 



1000° 



- 22 



— 10 







+ 10 



+ 35 



+ 46 



+ 77 



— 33 



— 23 



+ 27 



+ 25 



+ 56 



+ 125 



+ 183 



+ 227 



-170 



— 230 



— 250 



—443 



+ 79 



+ 157 



+ 189 



+ 171 



— 282 



— 310 



— 610 



— 900 



1 — 79 



— 196 



— 248 



-411 



+ 57 



+ 170 



+ 230 



+ 335 



— 5 



+ 9 



+ 49 



+ 99 



+ 73 



+ 220 



+ 315 



+ 540 



+ 38 



+ 135 



+ 238 



+ 342 



— 62 



— 5 







+ 53 



+ 89 



+ 227 



+ 345 



+ 398 



— 210 



— 250 



— 380 



-480 



— 12 



+ 42 



- 9 



-143 



— 44 



— 11 



+ 4 



+ 51 



+ 25 



+ 64 



+ 116 



+ 135 



Temperature Distribution in the Oven (MV). 











Oven Tube 11. 









From center of 

 oven. 



Palladium. 



Silver. 





250° 



500° 



750° 



1000° 



250° 



500° 



750° 



875° 



6 cm East 



+13+29 



+ 55 



+ 80 



+ 3 



+ 21 



+ 35 



+ 19 



12 " 



+ 59 +128 



+ 180 



+ 236 



+ 47 



+ 107 



+ 150 



+ 142 



19 " 



+ 80+155 



+ 188 



+ 164 



+ 78 



+ 140 



+ 163 



+ 125 



23 " 



— 100 —165 



— 210 



-402 



-84 



-174 



— 220 —344 



6 cm ^\T est 



— 1 



+ 12 



+ 53 



+ 94 



+ 1 



+ 15 



+ 52 



+ 20 



12 " 



+ 52 



+ 148 



+ 269 



+ 356 



+ 23 



+ 82 



+ 153 



+ 177 



19 " 



+ 95 



+ 233 



+ 358 



+ 399 



+ 48 



+ 133 



+ 217 



+ 223 



23 " 



+ 12 



+ 34 



— 3 



-129 



+ 3 



+ 48 



- 29 



+ 11 



A 



+ 31 



+ 77 



+ 124 



+ 135 



+ 16 



+ 49 



+ 80 



+ 62 



From center of 







Oven Tube II.— Nickel. 





oven. 



250° 



375° 



500° 



750° 



750° 



1000° 



6 cm East 



+ 16 



+ 22 



+ 27 



+ 59 



+ 57 



+ 82 



12 " 



+ 64 



+ 91 



+ 124 



+ 196 



+ 191 



+ 258 



19 " 



+ 89 



+ 117 



+ 147 



+ 194 



+ 168 



+ 196 



23 " 



— 87 



-111 



— 150 



— 205 



— 226 



-337 



6 cm West 



+ 4 



+ 15 



+ 26 



+ 64 



+ 75 



+ 120 



12 " 



+ 55 



+ 110 



+ 163 



+ 303 



+ 333 



+ 458 



19 " 



+ 99 



+ 177 



+ 248 



+ 405 



+ 445 



+ 509 



23 " 



+ 13 



+ 20 



+ 21 



- 29 



, - 26 



-221 



A 



+ 38 



+ 74 



+ 109 



+ 152 



+ 185 



