16 HALF-HOURS IN THE GREEN LANES. 



roams at its will over his body, and feeds on his 



juices, so that pike are often weakly through the 



extra numbers of this particular torment. The 



Fig. 3. 



Scale of Pike. 



same parasite, we ni f iy mention, is occasionally 

 found on the carp, roach, stickleback, trout, perch, 

 and even on the tadpoles of the frog. 



Those of our readers who possess microscopes, 



