Xll 



LIST OF ILLUSTRATIONS. 



31. — Voltameter for Producing and Weighing Mixed Gases 



32.— Toepler Pump Used to Measure Sample for Analysis; Small Toepler Pump for 



Transferring Convenient Quantity to Eudiometer 



33. — Palladium Tube, First Form 



34. — Palladium Tube, Protected against Leakage through Stopcock 



35. — Palladium Tube, Second Form 



36. — Apparatus for Producing and Weighing Water 



37. — Manipulator for Combining Oxygen and Hydrogen 



38._Manipulator, Rear View, with Globes and Palladium Tube Connected 



yj. — Apparatus for Detecting Absorption of Oxygen b}- Phosphorus Pentoxide 



Filling with Oxygen 



40. — Apparatus for Detecting Absorption of Oxygen by Phosphorus Pentoxide; Set 



up for the Experiment ...... 



85 



88 



97 



98 



98 



100 



100 



102 



107 



108 



