B. MEILINK. „On the measurement of very low temperatures IV. Comparison of 
the platinum thermometer with the hydrogen thermometer.” Plate I. 
As ts 
Az ty 
ON 
ZA \\ g 
| 
{o) 
ij $ 
N SNES 
NN N A 
| IN N Va 
NN A / 
N ON N e 
| 
| 11 
1 
| I | 
Wed E 
2 1 E 
| E : == (SN oe 
| SE 
: c : =e 
ae = et 
t == 
Fig. 3 
Proceedings Royal Acad. Amsterdam. Vol. IV. 
