Microscopy. 565 
technique. Origanum oil may be used, but its action is violent 
and often causes the colors to fade. Good bergamot oil is clear 
and between the first and middle fingers and the thumb a very 
ne but strong dissecting needle. Thé section is removed from 
the 
b 
` paper held beneath and guided near the position where it should 
Th then drawn with the needle out of the oil on to the paper. 
this position the strip is allowed to fall slowly on the object-glass. 
T en it is flattened out with a dissecting needle and dried with 
‘ting-paper. Now the tracing-paper, through which the whole 
e be seen, must be carefully removed, leaving the 
sections on the object-glass. If any sections should remain on the 
Paper, the latter, after the sections in question have been moistened 
With oil, is replaced in its former position on the object-glass, 
— alittle, and then removed, or if the sections are quite vib 
“y may be taken with pincers and transferred to the object-glass. 
