FIG. 4. Dissection of a younR Female Frog. The pullet (RH/) and rcrtum (ret) 

 h.ive tieen (\it through, ai-d theent. ,n canal removed between these two p. lints. 

 I In- liver i> removed, with the exception of a small portion (Ir) surrounding the 

 postcaval vein (p>. cv). The ventricle of the heart (v) is turned forwards, and 



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