Kewort IT. S. F. C. 1883. — Benecke. Fish-ponds. 



PLATE IV. 



FlO, 10. -Section of a 'monk." 



I '///mniii// . I 



13 



Fir 11 — POTsnertive view of a ''monk." FiGS. 12 and 13.— TransTerse section of 

 )i IG. 11.— Ferspecti^e view oi a ^ niu ^^^ perpendicular pipe of a narrow 



and broad "monk." 



