M ASCARIS. 



96. Transverse Section. Make a general drawing under the low power, showing : 

 cuticle ; syncytial outer layer ; muscle fibres : dorsal and ventral lines, each containing 

 nerves; lateral lines containing excretory can-i Is ; body-cavity; ovary or testis ; oviduct 

 or vas deferens ; uterus or vesicula seminalis; intestine. 



97. Transverse Section. Draw (a) a in use IP and (b) a section of the ovary under the 

 nigh power. Show, in the muscle fibre, the contractile and non-contractile substances, the 

 latter containing the nucleus and provided with a long process directed towards the dorsal 

 or ventral line. In the ovary show the central cord with immature ova attached to it and 

 the thin wall. 



