MICROSCOPIC OBJECTS. 
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1 . Microscopic objects.— 2 . The dragon-fly and its larvse.— 3 . | The satyr. 
*— 4 . The linceus sphericus.— 5 . The lurco, or glutton.—6. The 
water-fly. 
1. Haying in the preceding Tract explained the structure, 
application, and use of the microscope in the various forms which 
have been given to that instrument, we shall here briefly notice a 
few remarkable microscopic objects, selected chiefly from the 
Microscopic Cabinet of Mr. Pritchard, illustrated with magnified 
drawings by the late Dr. Goring. 
2. The family Libellulidse includes an extensive and beautiful 
group of large insects not sensibly differing in their external form 
from the ant-lion, already noticed.* 
88 
Fig. 5. —MAGNIFIED VIEW OF THE LURCO OR GLUTTON. 
* Instinct and Intelligence, p. 119 . 
