io.8 
9. At all stages of the dissection make sure that 
the glands are really present and that they have not 
floated to the side or stuck to the needles. 
10. By this certain and rapid method, as many 
as one hundred glands may be dissected out, put under 
a coverglass, and examined microscopically in a day’s 
work. 
Fig, 43. The Salivary Glands of one side 
Method 2.—Consists in isolating, by a series of 
cuts, the anterior ventral portion of the thorax in 
which the glands lie. 
1. Make a cut obliquely in an antero-posterior 
direction, so as to sever the main mass of thoracic 
muscle. 
2. Make a cut at right angles to this, passing 
just behind the attachment of the first pair of legs. 
3. Cut through the neck. 
4. The glands lie in the portion thus isolated. 
Considerable teasing out is still required to isolate 
them from the surrounding tissues. Examine each 
portion of tissue separated out, and remove to a fresh 
clear drop of salt solution. 
Remember that in examining under the micro¬ 
scope the apparent right hand is really the left, and 
vice versa. 
