186 ©. W. Hinman—New Apparatus for Gas Analysis. 
clip the liquid is forced within 1 or 2 mm. of the point of the 
pipette tube; the point of the pipette is then brought under 
the surface of the mercury, by raising the measuring tube, and 
much greater pressure, without fracture. I have found it easier 
to read the measuring tube, by having a piece of white paper 
on the glass back of it and about 3 mm. above the top of 
the glass u. The pipettes used permit the complete transfer of 
gases 
et 
