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Early History of the Harlequin-Gnat. 



The female chirononins deposits her eggs in a mass attached to a water-plant. By the absorption of water this scon becomes a httle blob 

 of jelly, as shown in the first photogiaph, enlarged twelve times. A few separate eggs are shown on a larger scale in the second photograj)!). 

 lu the third, the eggs have hatched, and the tiny bloodworms issued from them arc seen magnified twehe times. The last photograph shows 

 a single newly hatched bloodworm seventy-five times its actual size. 



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