The great Water Beetle, Dytiscus marginalis, and the Diving Water Spider, 

 Argyroneta aquatica, allegorically typified above, by an armour-clad Knight 

 and an aquatic Nymph. 



THE FRESH-WATER SIREN. 

 PART THE FIRST. 



Y air-built bower come and see, 

 Stranger, come and dwell with me." 

 An armour-clad Rover is sauntering near; 

 At the Siren's sweet accents he pricks up his 



ear: 



" Gramercy !" quoth he. " She bespeaketh me kind, 

 And to pay her my devoirs I've almost a inind." 

 Then he looked at the water, exploring it through, 

 And there, if his sight brought him evidence true, 



